Colour
Most gem quality diamonds fall within a range from “D” colourless to “Z” light yellow. Almost all have a trace of yellow, brown or gray body colour. The colour of a diamond is determined on the basis of a visual assessment by comparing it to a set of master diamonds under laboratory conditions. The differences between colours are very subtle and graded according to the International Colour Grading Scale. With the exception of some natural fancy colours, such as blue, pink, purple, yellow or red, the colorless grade is the most valuable.
Due to inaccuracy and inconsistency, colour machines are not used to grade diamonds by any of the internationally recognised laboratories. The prescribed method for grading colour is by comparing the diamond to a registered master set.
Roll your mouse over the colour bar below to change the colour of the diamonds:
Note: The colours presented here are simply a rough guide and are not accurate.
The diamond trading floor that gives all diamond buyers direct access to DCLA guaranteed diamonds from Australian diamond dealers.
latest news
Friday 20 January, 2012
WORKSHOP: DIAMOND BUYING FOR CONSUMERS
Friday 9th March - Sign up for our 2 to 3 hour hands on workshop and discover what you need to know to buy the right diamond at the right price.
Thursday 19 January, 2012
OPPENHEIMERS SELL DE BEERS DIAMONDS STAKE
South Africa’s Oppenheimer dynasty has ended a century in the diamond business which shaped the region, selling its 40% of De Beers to global miner Anglo American for A$4.91 billion.
Friday 11 November, 2011
DIAMOND BUYING WORKSHOP FOR CONSUMERS
DCLA’s next in-laboratory workshop on ‘How to Buy a Diamond’ is set for Friday December 2.
Thursday 27 October, 2011
FOR JEWELLERS: WORKSHOP FOR DIAMOND SALES STAFF
DCLA diamond experts will walk participants through a diamond course specifically tailored for on-floor sales staff, in a hands on workshop presented at the DCLA Laboratory.
Monday 29 August, 2011
JEWELLERY WORLD
A new jewellery show produced by Jewellery World, Australia’s professional jewellery magazine, and Interpoint Events, an award winning exhibition company, will be launched next year.
Friday 20 May, 2011
DCLA CELEBRATES 10 YEARS
On May 2nd, 2011 The DCLA celebrated ten years in business as one of the world’s leading diamond certification laboratories.
Wednesday 4 May, 2011
AGS LAUNCHES DIAMOND SEARCH PLATFORM
The American Gem Society, in partnership with Verichannel, announced today the launch of a specialized search engine for diamonds graded by AGS Lab, available from AGS suppliers.