The shape of a stone is admired as much as the sparkle. Round Brilliant Cut, Princess Cut, Emerald Cut and more, take a closer look at size and shape to find the stone you love.
The shape of a stone is admired as much as the sparkle. Round Brilliant Cut, Princess Cut, Emerald Cut and more, take a closer look at size and shape to find the stone you love.
Some light loss. Reflects most light but not as brilliantly as higher grade cuts.
Colour
Colour
Colour
D
E
F
G
H
I
J
K
L
M
Faint Yellow (M)
Noticeable colour. Not typically recommended for colourless diamond jewellery.
Carat
Diamond carat (ct) measures a diamond’s weight, with 1 carat equal to 200 milligrams. Carat should not be confused with visible size, as two diamonds of the same weight can look different depending on their shape, cut and proportions. Dimensions are often a better guide to how large a diamond will appear, while higher carat weights generally also come with higher prices.​
Setting price may increase for larger carat sizes.
Carat
Diamond carat (ct) measures a diamond’s weight, with 1 carat equal to 200 milligrams. Carat should not be confused with visible size, as two diamonds of the same weight can look different depending on their shape, cut and proportions. Dimensions are often a better guide to how large a diamond will appear, while higher carat weights generally also come with higher prices.​
Setting price may increase for larger carat sizes.
Clarity
Clarity
Clarity
FL
IF
VVS1
VVS2
VS1
VS2
SI1
SI2
Slightly Included 2
Inclusions are visible under 10x magnification and may be visible with an unaided eye. More inclusions than SI1.
A diamond's polish refers to the smoothness of its facet surfaces after cutting. Excellent or Very Good polish means the cutter's wheel has left no visible marks, allowing light to pass in and out cleanly. Poor polish can dull a diamond's brilliance, so it's worth looking for the highest grade your budget allows.
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Symmetry
Symmetry describes how precisely a diamond's facets align and mirror one another. Well-symmetrical diamonds reflect light more evenly, maximising sparkle and fire. Minor symmetry variations are often invisible to the naked eye, but Excellent or Very Good symmetry ensures the diamond performs at its best.
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Depth %
Depth percentage is the height of a diamond from table to culet, expressed as a proportion of its width. The ideal range varies by shape, but getting it right is critical, too shallow and light escapes through the bottom, too deep and it leaks out the sides. Both reduce brilliance.
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%
%
Table %
The table is the large flat facet on top of a diamond. Table percentage measures it as a proportion of the diamond's overall width. A well-proportioned table directs light deep into the stone and back to your eye, contributing significantly to a diamond's brilliance and visual impact.
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%
%
L:W Ratio
Length to width ratio compares a diamond's longest dimension to its shortest, giving you a sense of its outline. A ratio of 1.00 means a perfectly square stone, higher numbers produce a more elongated look. Personal preference rules here, whether you love a classic square or a slender, elegant shape, the choice is yours.
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Fluorescence
Some diamonds emit a soft glow, usually blue, under ultraviolet light. In most cases, fluorescence has little effect on appearance in daylight and can even make faint-colour diamonds look whiter. Strong fluorescence occasionally gives a diamond a slightly hazy look, so it's worth considering alongside colour grade.
If you see a square contour exciting but don't love the appearance of a step-cut gem, you may require to judge a Radiant cut. The Radiant cut takes the shape of an Emerald cut, but with cropped edges and faceting that more rounds the stone, inspiring the noble starkness of the Emerald cut with the illumination of a Round Brilliant. The Radiant has the shape of an emerald-cut or Asscher cut, but alternatively of step cut faceting, it has brilliant-cut faceting. This is for someone who desires the form of an emerald or Asscher cut, but with loads of glow and brilliance, as faced with quite a sparkle or minimalist expression that you would notice from a step-cut gem.
Check other shapes from our range of loose diamonds
Still a questions about the configuration or other features of a diamond? Go to our article: how to choose a diamond. Ask a diamond expert online for explanations. A specialist will reply to any inquiries you have, and if you prefer, explore for diamonds that meet your standards.
For a 1-carat Radiant solitaire (only stone) ring, typically, the core stone makes up about 85% of the price, with the rest agreeing to the setting. The centre gem may make up about 70% of the price for a halo-style ring, and the setting is about 30% of the cost.
When thinking which Radiant diamond will be the most suitable for you, our most helpful tip is to recognise what you will most possible see about a diamond when you see it in a ring on your finger. Cut and size are the most apparent characteristics of a diamond. The next would be Clarity, since that can straight affect the brilliance of the diamond. Finally, we view tone.
Well, a diamond's shade or colourlessness can only be discovered by analysing diamonds side by side. This is precisely the method for learning colourlessness in a diamond in the first point when the grading process – each diamond is associated next to a set of master gems with different shade standards to reach a decision.
