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.
Select
Select
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.
Select
Select
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.
Select
Select
%
%
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.
Select
Select
%
%
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.
Select
Select
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.
GS Diamonds’ 1 carat diamonds are the ultimate symbol of elegance, love, and commitment — perfect for engagement rings. Our beautiful diamonds are handpicked and ethically sourced. With our commitment to superior quality and craftsmanship, you’ll only get the finest gemstones. Choose GS Diamonds for a stunning piece of art that lasts forever.
Each 1 carat diamond is a harmonious product of artistry and precision. We consider our diamonds as lasting testaments to our unwavering commitment to excellence in jewellery. Our unique and beautiful selection of cuts, colours, settings, and bands offers you the perfect opportunity to create a unique piece of custom jewellery — whether you choose to design and receive a stunning engagement ring or an eye-catching necklace. Whatever you decide on, our professional team of expert jewellers and world-class designers will be with you through every step of your GS Diamonds journey to help you make the best choice for a gem that will last a lifetime.
Shop Our Range of Certified 1 Carat Diamonds
All the loose 1 carat diamonds that you see in our online inventory and in-store collection come with the original GIA Grading certificate, which is the most trusted grading report in the world. Most diamonds are laser inscribed on the girdle with their unique identification number for your peace of mind. With GS Diamonds, you can be certain that you’re getting certified quality — or your money back. Our diamonds are the best in Australia, and you can sport one by visiting us online or in one of our stores in person. Shop the range today to experience the unparalleled elegance of our one carat diamonds.
