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The Diamond 4Cs Explained in Detail Colour |
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| When a diamond is graded for colour, it is the 'absence' of colour that is taken into consideration and which will result in a high grade. The best quality diamonds are colourless (D- F) or very slightly yellow (G – J) and will be graded accordingly. Those with the higher grades have been graded as being the closest to having no colour. |
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| Diamonds are a natural commodity and therefore every colour occurs naturally within the stones. All colours of the spectrum have been found in diamond mines and the most rare and precious are reds, blues and pinks. The Argyle Pinks are globally famous, with stones fetching record prices. |
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| Grading scales for colour begin with D, which is the presentation of no colour. The grade travels in degrees through to Z with the increasing presence of colour, usually yellow/brown. Each colour attributed to the stone is defined by the letter grade it receives and these are very precise. |
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| To assess colour grades within diamonds, they are compared to a master set of stones that have clear colour definition: |
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Z D H N
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Points to remember when considering colour grades:
- The colour of a diamond is assessed in what isn't present. Clear or white diamonds are the most valuable, the less colour present the higher the diamond will be in value
- Fancy coloured diamonds are graded differently to clear diamonds.
- Jewellery outlets generally sell diamonds that are colourless to nearly colourless. Some diamonds may have tones of yellow or brown.
- The colour grading scale begins with the letter D, which is the representation of colourless stones and continues to the letter Z, for near colourless stones. This grading standard is set by the international grading laboratory, GIA and stones are compared to a set of master stones that have been accurately colour graded. Examinations are carried out under uniform conditions with very precise viewing conditions.
- The degrees of colour within a stone is often invisible to the untrained eye as they are extremely subtle. The diamond quality and the eventual value that is placed on the stone is governed by these infinitesimal variations.
- Where the stone is examined by more than one grader, graders are not permitted to see reports that have been entered by previous graders regarding the same diamond. When opinions of graders agree the colour grade is determined.
- The colour grades begin at D through to Z as a simplification of the colour grading system. Before the GIA system was implemented, the letters A, B, and C were used with variations, which resulted in an inconsistent and inaccurate grading system. GIA wanted to start with a fresh system, so to avoid confusion decided to begin with the letter D.
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| My Diamonds use a Master Colour Set of Diamonds from GIA to check the colour grades of all diamonds within our eclectic collections. Our loose stones are of the very highest quality and we can source fancy coloured diamonds from all over the world. |
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| For more information regarding the My Diamonds Collection of loose diamonds please call, 1800 766 567 and speak with one of our professional diamond specialists. |
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| Why wait any longer to see their superb collections? Go to www.mydiamonds.com.au or call 1800-766-567 where you will receive top customer service and a choice of diamond jewellery to die for! |
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