The carbon based mineral is the hardest of all known substances (Mohs hardness scale 10) and exist in a variety of colours. White diamonds are graded by colour, clarity, cut, polish, symmetry and fluorescence. Diamond sizes are weighed in carats.
Shape (also known as cut)
Our most popular diamond shapes are round brilliant cut and princess cut diamonds. However many more cuts are available including Asscher, Emerald, Oval, Marquise, Pear, Cushion, Radiant and Baguette.
Colour grade mainly range from D (exceptional white) to M (tinted yellow colour). D, E and F are the collection colours which are graded as colourless.
Natural imperfections and inclusion within the diamond. These are graded from Flawless down to Pique.
The cut is the proportions and angles of the finished diamond. This is graded from Excellent to Poor
The finish of the surface of diamond.This is graded from Excellent to Poor. Here are just a few examples:
This is accuracy of which the diamonds alignment and facets to perfect proportions. This is graded from Excellent to Poor. Here are a few examples:
A blue colour which can be omitted by the diamond under ultra violet light. This is graded from Nil Fluorescence to Very Strong. (a stronger fluorescence can give the diamond a milky appearance in daylight)
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How Long Does It Take For A Bespoke Piece Of Jewellery?
Does My Jewellery Leave Avanti For Repairs?
Can My Purchase Be Engraved?
What Are The Best Diamond Certificates?
What If I Ordered The Wrong Ring Size?
What Are The Birthstones For Each Month?
January - Garnet
February - Amethyst
March - Aquamarine
April - Diamond
May - Emerald
June - Pearl
July - Ruby
August - Peridot
September - Sapphire
October - Opal
November - Topaz
December - Turquoise
What Are the Jewellery Related Wedding Anniversaries?
25th - Silver
30th - Pearl
35th - Coral
40th - Ruby
45th - Sapphire
50th - Gold
55th - Emerald
60th - Diamond
How Do I Care For My Gemstones?
Diamond, Sapphire, rubies and aquamarine are harder stones so it is safe to use warm soapy water.
We recommend professional cleaning for all gemstones.