Carat===

Carat

Carat refers to the weight of a diamond. The size of a diamond increases its value and rarity, but has a lesser importance if it is not matched with a good grade of colour and clarity and a properly proportioned cut. Two diamonds of the same carat weight will have, in fact, very different values depending on their other characteristics. Nevertheless, size does indeed contribute to increase the value of a diamond, as large diamonds are rarer than small ones. One carat is approximately equal to 200 milligrams. One carat can also be divided into 100 “points.” A 0.75 carat diamond is the same as a 75-pointer or 3/4 carat diamond. A one carat diamond costs exactly twice the price of a half-carat diamond, right? Wrong. Since larger diamonds are found less frequently in nature, a one carat diamond will cost more than twice a 1/2-carat diamond (assuming of course colour, clarity and cut remain constant). ===Colour===

Colour

Colour refers to the degree to which a diamond is colourless. The more colourless a diamond is, the greater its rarity and value. Even though many diamonds appear colourless to an inexpert eye, the majority of diamonds have a colour leaning slightly towards yellow or brown. Nature also offers us fancy coloured diamonds as yellow, green, blue and pink. The colour grading scale ranges from D (colourless) to H (white) to K (tinted yellow) to Z. White diamonds (D – H), look best when set into white gold or platinum. Tinted yellow diamonds (for example, I–M) may be disquised when set in yellow gold. Colour differences are very subtle and it is very difficult to see the difference between, say, an E and an F. Therefore, colours are graded under controlled lighting conditions and are compared to a master set for accuracy or read by a colour grading computer. Colour ultimately comes down to personal taste. David Keefe specializes in white and colourless diamonds and we are happy to show you a variety of colour grades next to one another to help you determine your preferred colour. ===Clarity===

Clarity

Clarity refers to the presence of inclusions in a diamond. Millions of years ago when the diamond was formed, other minerals, crystals or gases may have been trapped within the diamond. These minerals or crystals are called inclusions - they may look like tiny crystals, clouds or feathers. The number, position, kind, colour and prominence of inclusions contained in the diamond determine the grade of a diamond’s clarity. To view inclusions, jewellers use a magnifying loupe. This tool allows jewellers to view a diamond at 10x its actual size so that inclusions are easier to see. A diamond is called “flawless” or “loupe clean” if examination under a loupe does not reveal inclusions contained within the diamond or on the diamond’s surface. Truly flawless diamonds are very rare. If the inclusions within the diamond are not visible to the naked eye, the diamond is called “eye clean”. The inclusions within an “eye clean” diamond will not affect the diamond’s brilliance. ===Cut===

Cut

The Cut is a very important factor and refers to the angles and proportions of a diamond. The cut is the only factor influenced by man and a well cut diamond will enhance the diamond's power to pick up and reflect light. When nicely cut, a diamond is revealed and shows itself in all its splendour and brilliance. In order to reach perfection, the diamond cutter, with an accurate technique, great ability and precision, determines every facet and angle of the diamond following a precise reciprocal geometric relationship. Diamonds that are cut too deep or too shallow lose or leak light through the side or bottom, resulting in less brilliance and ultimately, value. Since a round diamond is symmetrical and capable of reflecting nearly all the light that enters, it is the most brilliant of all diamond shapes and follows specific proportional guidelines. For example, a brilliant-cut diamond must have 57 or 58 facets lined up with precision. We carefully select our diamonds to meet our strict quality criteria. We are not interested in offering for sale any badly cut or poorly proportioned gemstones. Cut also refers to the shape of the diamond. David Keefe uses fancy shape diamonds such as Princess, Emerald, Pear, Radiant, Oval and Heart. Please call into our store to view and try on the various shaped diamonds to find the one most pleasing to your eye!"/> Carat===

Carat

Carat refers to the weight of a diamond. The size of a diamond increases its value and rarity, but has a lesser importance if it is not matched with a good grade of colour and clarity and a properly proportioned cut. Two diamonds of the same carat weight will have, in fact, very different values depending on their other characteristics. Nevertheless, size does indeed contribute to increase the value of a diamond, as large diamonds are rarer than small ones. One carat is approximately equal to 200 milligrams. One carat can also be divided into 100 “points.” A 0.75 carat diamond is the same as a 75-pointer or 3/4 carat diamond. A one carat diamond costs exactly twice the price of a half-carat diamond, right? Wrong. Since larger diamonds are found less frequently in nature, a one carat diamond will cost more than twice a 1/2-carat diamond (assuming of course colour, clarity and cut remain constant). ===Colour===

Colour

Colour refers to the degree to which a diamond is colourless. The more colourless a diamond is, the greater its rarity and value. Even though many diamonds appear colourless to an inexpert eye, the majority of diamonds have a colour leaning slightly towards yellow or brown. Nature also offers us fancy coloured diamonds as yellow, green, blue and pink. The colour grading scale ranges from D (colourless) to H (white) to K (tinted yellow) to Z. White diamonds (D – H), look best when set into white gold or platinum. Tinted yellow diamonds (for example, I–M) may be disquised when set in yellow gold. Colour differences are very subtle and it is very difficult to see the difference between, say, an E and an F. Therefore, colours are graded under controlled lighting conditions and are compared to a master set for accuracy or read by a colour grading computer. Colour ultimately comes down to personal taste. David Keefe specializes in white and colourless diamonds and we are happy to show you a variety of colour grades next to one another to help you determine your preferred colour. ===Clarity===

Clarity

Clarity refers to the presence of inclusions in a diamond. Millions of years ago when the diamond was formed, other minerals, crystals or gases may have been trapped within the diamond. These minerals or crystals are called inclusions - they may look like tiny crystals, clouds or feathers. The number, position, kind, colour and prominence of inclusions contained in the diamond determine the grade of a diamond’s clarity. To view inclusions, jewellers use a magnifying loupe. This tool allows jewellers to view a diamond at 10x its actual size so that inclusions are easier to see. A diamond is called “flawless” or “loupe clean” if examination under a loupe does not reveal inclusions contained within the diamond or on the diamond’s surface. Truly flawless diamonds are very rare. If the inclusions within the diamond are not visible to the naked eye, the diamond is called “eye clean”. The inclusions within an “eye clean” diamond will not affect the diamond’s brilliance. ===Cut===

Cut

The Cut is a very important factor and refers to the angles and proportions of a diamond. The cut is the only factor influenced by man and a well cut diamond will enhance the diamond's power to pick up and reflect light. When nicely cut, a diamond is revealed and shows itself in all its splendour and brilliance. In order to reach perfection, the diamond cutter, with an accurate technique, great ability and precision, determines every facet and angle of the diamond following a precise reciprocal geometric relationship. Diamonds that are cut too deep or too shallow lose or leak light through the side or bottom, resulting in less brilliance and ultimately, value. Since a round diamond is symmetrical and capable of reflecting nearly all the light that enters, it is the most brilliant of all diamond shapes and follows specific proportional guidelines. For example, a brilliant-cut diamond must have 57 or 58 facets lined up with precision. We carefully select our diamonds to meet our strict quality criteria. We are not interested in offering for sale any badly cut or poorly proportioned gemstones. Cut also refers to the shape of the diamond. David Keefe uses fancy shape diamonds such as Princess, Emerald, Pear, Radiant, Oval and Heart. Please call into our store to view and try on the various shaped diamonds to find the one most pleasing to your eye!"> Carat===

Carat

Carat refers to the weight of a diamond. The size of a diamond increases its value and rarity, but has a lesser importance if it is not matched with a good grade of colour and clarity and a properly proportioned cut. Two diamonds of the same carat weight will have, in fact, very different values depending on their other characteristics. Nevertheless, size does indeed contribute to increase the value of a diamond, as large diamonds are rarer than small ones. One carat is approximately equal to 200 milligrams. One carat can also be divided into 100 “points.” A 0.75 carat diamond is the same as a 75-pointer or 3/4 carat diamond. A one carat diamond costs exactly twice the price of a half-carat diamond, right? Wrong. Since larger diamonds are found less frequently in nature, a one carat diamond will cost more than twice a 1/2-carat diamond (assuming of course colour, clarity and cut remain constant). ===Colour===

Colour

Colour refers to the degree to which a diamond is colourless. The more colourless a diamond is, the greater its rarity and value. Even though many diamonds appear colourless to an inexpert eye, the majority of diamonds have a colour leaning slightly towards yellow or brown. Nature also offers us fancy coloured diamonds as yellow, green, blue and pink. The colour grading scale ranges from D (colourless) to H (white) to K (tinted yellow) to Z. White diamonds (D – H), look best when set into white gold or platinum. Tinted yellow diamonds (for example, I–M) may be disquised when set in yellow gold. Colour differences are very subtle and it is very difficult to see the difference between, say, an E and an F. Therefore, colours are graded under controlled lighting conditions and are compared to a master set for accuracy or read by a colour grading computer. Colour ultimately comes down to personal taste. David Keefe specializes in white and colourless diamonds and we are happy to show you a variety of colour grades next to one another to help you determine your preferred colour. ===Clarity===

Clarity

Clarity refers to the presence of inclusions in a diamond. Millions of years ago when the diamond was formed, other minerals, crystals or gases may have been trapped within the diamond. These minerals or crystals are called inclusions - they may look like tiny crystals, clouds or feathers. The number, position, kind, colour and prominence of inclusions contained in the diamond determine the grade of a diamond’s clarity. To view inclusions, jewellers use a magnifying loupe. This tool allows jewellers to view a diamond at 10x its actual size so that inclusions are easier to see. A diamond is called “flawless” or “loupe clean” if examination under a loupe does not reveal inclusions contained within the diamond or on the diamond’s surface. Truly flawless diamonds are very rare. If the inclusions within the diamond are not visible to the naked eye, the diamond is called “eye clean”. The inclusions within an “eye clean” diamond will not affect the diamond’s brilliance. ===Cut===

Cut

The Cut is a very important factor and refers to the angles and proportions of a diamond. The cut is the only factor influenced by man and a well cut diamond will enhance the diamond's power to pick up and reflect light. When nicely cut, a diamond is revealed and shows itself in all its splendour and brilliance. In order to reach perfection, the diamond cutter, with an accurate technique, great ability and precision, determines every facet and angle of the diamond following a precise reciprocal geometric relationship. Diamonds that are cut too deep or too shallow lose or leak light through the side or bottom, resulting in less brilliance and ultimately, value. Since a round diamond is symmetrical and capable of reflecting nearly all the light that enters, it is the most brilliant of all diamond shapes and follows specific proportional guidelines. For example, a brilliant-cut diamond must have 57 or 58 facets lined up with precision. We carefully select our diamonds to meet our strict quality criteria. We are not interested in offering for sale any badly cut or poorly proportioned gemstones. Cut also refers to the shape of the diamond. David Keefe uses fancy shape diamonds such as Princess, Emerald, Pear, Radiant, Oval and Heart. Please call into our store to view and try on the various shaped diamonds to find the one most pleasing to your eye!"> Carat===

Carat

Carat refers to the weight of a diamond. The size of a diamond increases its value and rarity, but has a lesser importance if it is not matched with a good grade of colour and clarity and a properly proportioned cut. Two diamonds of the same carat weight will have, in fact, very different values depending on their other characteristics. Nevertheless, size does indeed contribute to increase the value of a diamond, as large diamonds are rarer than small ones. One carat is approximately equal to 200 milligrams. One carat can also be divided into 100 “points.” A 0.75 carat diamond is the same as a 75-pointer or 3/4 carat diamond. A one carat diamond costs exactly twice the price of a half-carat diamond, right? Wrong. Since larger diamonds are found less frequently in nature, a one carat diamond will cost more than twice a 1/2-carat diamond (assuming of course colour, clarity and cut remain constant). ===Colour===

Colour

Colour refers to the degree to which a diamond is colourless. The more colourless a diamond is, the greater its rarity and value. Even though many diamonds appear colourless to an inexpert eye, the majority of diamonds have a colour leaning slightly towards yellow or brown. Nature also offers us fancy coloured diamonds as yellow, green, blue and pink. The colour grading scale ranges from D (colourless) to H (white) to K (tinted yellow) to Z. White diamonds (D – H), look best when set into white gold or platinum. Tinted yellow diamonds (for example, I–M) may be disquised when set in yellow gold. Colour differences are very subtle and it is very difficult to see the difference between, say, an E and an F. Therefore, colours are graded under controlled lighting conditions and are compared to a master set for accuracy or read by a colour grading computer. Colour ultimately comes down to personal taste. David Keefe specializes in white and colourless diamonds and we are happy to show you a variety of colour grades next to one another to help you determine your preferred colour. ===Clarity===

Clarity

Clarity refers to the presence of inclusions in a diamond. Millions of years ago when the diamond was formed, other minerals, crystals or gases may have been trapped within the diamond. These minerals or crystals are called inclusions - they may look like tiny crystals, clouds or feathers. The number, position, kind, colour and prominence of inclusions contained in the diamond determine the grade of a diamond’s clarity. To view inclusions, jewellers use a magnifying loupe. This tool allows jewellers to view a diamond at 10x its actual size so that inclusions are easier to see. A diamond is called “flawless” or “loupe clean” if examination under a loupe does not reveal inclusions contained within the diamond or on the diamond’s surface. Truly flawless diamonds are very rare. If the inclusions within the diamond are not visible to the naked eye, the diamond is called “eye clean”. The inclusions within an “eye clean” diamond will not affect the diamond’s brilliance. ===Cut===

Cut

The Cut is a very important factor and refers to the angles and proportions of a diamond. The cut is the only factor influenced by man and a well cut diamond will enhance the diamond's power to pick up and reflect light. When nicely cut, a diamond is revealed and shows itself in all its splendour and brilliance. In order to reach perfection, the diamond cutter, with an accurate technique, great ability and precision, determines every facet and angle of the diamond following a precise reciprocal geometric relationship. Diamonds that are cut too deep or too shallow lose or leak light through the side or bottom, resulting in less brilliance and ultimately, value. Since a round diamond is symmetrical and capable of reflecting nearly all the light that enters, it is the most brilliant of all diamond shapes and follows specific proportional guidelines. For example, a brilliant-cut diamond must have 57 or 58 facets lined up with precision. We carefully select our diamonds to meet our strict quality criteria. We are not interested in offering for sale any badly cut or poorly proportioned gemstones. Cut also refers to the shape of the diamond. David Keefe uses fancy shape diamonds such as Princess, Emerald, Pear, Radiant, Oval and Heart. Please call into our store to view and try on the various shaped diamonds to find the one most pleasing to your eye!"/>

Understanding Diamonds

It takes millions of years for a diamond to form. Spend a few moments discovering yours. From deep within the earth comes the world's ultimate expression of love. Here you will find all the information you need to make your choice an educated one. Finding your perfect piece of diamond jewellery is an exhilarating and unique experience. As with any significant purchase, it is important that you make an educated decision. Take your time. After all, a diamond is timeless. Please feel free to contact us with any question that you may have – we are here to help!

The 4 Cs

A diamond’s beauty, rarity, and price depend on the interplay of all the 4Cs—cut, clarity, carat, and colour. The 4Cs are used throughout the world to classify the rarity of diamonds. Diamonds with the combination of the highest 4C ratings are more rare and, consequently, more valuable. Once you have established those 4C characteristics that are most important to you, our sales staff can then begin to show you various options with quoted prices. Remember, price is not everything. You might fall in love with a diamond that is well below your budget based on a particular cut or the way you feel when you try it on!

The diamond's brilliance, uniqueness and purity are determined by four factors commonly known as the four Cs:

  1. Carat
  2. Colour
  3. Clarity
  4. Cut

The 5th C: Confidence

At David Keefe Jewellers we believe that there is a 5th “C” as important as any of the above – Confidence in your jeweller. A good jeweller is the first step to a smart diamond purchase. To find a jeweller you can trust, ask your family and friends for recommendations. Your jeweller should be knowledgeable about diamonds and help you feel comfortable making this important purchase.

At David Keefe Jewellers, we are happy to spend as much time with as you need to ensure that you have all the information to make the right decision. After all, the diamond will be worn for a lifetime.

Carat

Carat

Carat refers to the weight of a diamond. The size of a diamond increases its value and rarity, but has a lesser importance if it is not matched with a good grade of colour and clarity and a properly proportioned cut. Two diamonds of the same carat weight will have, in fact, very different values depending on their other characteristics. Nevertheless, size does indeed contribute to increase the value of a diamond, as large diamonds are rarer than small ones.

One carat is approximately equal to 200 milligrams. One carat can also be divided into 100 “points.” A 0.75 carat diamond is the same as a 75-pointer or 3/4 carat diamond.

A one carat diamond costs exactly twice the price of a half-carat diamond, right? Wrong. Since larger diamonds are found less frequently in nature, a one carat diamond will cost more than twice a 1/2-carat diamond (assuming of course colour, clarity and cut remain constant).

Colour

Colour

Colour refers to the degree to which a diamond is colourless. The more colourless a diamond is, the greater its rarity and value. Even though many diamonds appear colourless to an inexpert eye, the majority of diamonds have a colour leaning slightly towards yellow or brown. Nature also offers us fancy coloured diamonds as yellow, green, blue and pink.

The colour grading scale ranges from D (colourless) to H (white) to K (tinted yellow) to Z. White diamonds (D – H), look best when set into white gold or platinum. Tinted yellow diamonds (for example, I–M) may be disquised when set in yellow gold. Colour differences are very subtle and it is very difficult to see the difference between, say, an E and an F. Therefore, colours are graded under controlled lighting conditions and are compared to a master set for accuracy or read by a colour grading computer.

Colour ultimately comes down to personal taste. David Keefe specializes in white and colourless diamonds and we are happy to show you a variety of colour grades next to one another to help you determine your preferred colour.

Clarity

Clarity

Clarity refers to the presence of inclusions in a diamond. Millions of years ago when the diamond was formed, other minerals, crystals or gases may have been trapped within the diamond. These minerals or crystals are called inclusions – they may look like tiny crystals, clouds or feathers. The number, position, kind, colour and prominence of inclusions contained in the diamond determine the grade of a diamond’s clarity.

To view inclusions, jewellers use a magnifying loupe. This tool allows jewellers to view a diamond at 10x its actual size so that inclusions are easier to see. A diamond is called “flawless” or “loupe clean” if examination under a loupe does not reveal inclusions contained within the diamond or on the diamond’s surface. Truly flawless diamonds are very rare. If the inclusions within the diamond are not visible to the naked eye, the diamond is called “eye clean”. The inclusions within an “eye clean” diamond will not affect the diamond’s brilliance.

Cut

Cut

The Cut is a very important factor and refers to the angles and proportions of a diamond. The cut is the only factor influenced by man and a well cut diamond will enhance the diamond's power to pick up and reflect light. When nicely cut, a diamond is revealed and shows itself in all its splendour and brilliance.

In order to reach perfection, the diamond cutter, with an accurate technique, great ability and precision, determines every facet and angle of the diamond following a precise reciprocal geometric relationship. Diamonds that are cut too deep or too shallow lose or leak light through the side or bottom, resulting in less brilliance and ultimately, value. Since a round diamond is symmetrical and capable of reflecting nearly all the light that enters, it is the most brilliant of all diamond shapes and follows specific proportional guidelines. For example, a brilliant-cut diamond must have 57 or 58 facets lined up with precision.

We carefully select our diamonds to meet our strict quality criteria. We are not interested in offering for sale any badly cut or poorly proportioned gemstones.

Cut also refers to the shape of the diamond. David Keefe uses fancy shape diamonds such as Princess, Emerald, Pear, Radiant, Oval and Heart. Please call into our store to view and try on the various shaped diamonds to find the one most pleasing to your eye!