Celsteel Diamond
HATTON GARDEN LONDON
The Diamond Wholesaler You Can Trust
We have an extremely large stock of natural diamonds in all shapes and sizes
Our stock starts with tiny 0.7mm diamonds, going up in size to fine individual GIA certified stones
BRILLIANTS
For our stock of Brilliants we try and keep the colour to a standard F/G plus consistently throughout the grades as we feel that this is a big factor in our success, as our customers can be sure that each time they order the colour will be exactly the same as the time before, so giving them consistency with their clients. The purity will of course vary with the type of goods you require.
We start with 0.7mm going up through the sizes as follows:
Round Brilliant Cuts
Sieve Size
Approximate Carat Weight
Approximate MM size
| -0 | +0 | +1.5 -2 | +2 -2.5 | +2.5 -3 | +3.5 -4 | +4.5 -5 | +5.5 -6 | +3.5 -4 | +4.5 -5 | +5.5 -6 | +6 -6.5 | +6.5 -7 | +7 -7.5 | +7.5 -8 | +8 -8.5 | +8.5 -9 | +9 -9.5 | +9.5 -10 | +10 -10.5 | +10.5 -11 | +11 -11.5 | +11.5 -12 | +12 -12.5 | +12.5 -13 | +13 -13.5 | +13.5 -14 | +14 -14.5 | +14.5 -15 | +15 -15.5 | – | – |
| 0.005 | 0.007 | 0.008 | 0.009 | 0.01 | 0.012 | 0.015 | 0.018 | 0.022 | 0.025 | 0.003 | 0.035 | 0.004 | 0.045 | 0.050 | 0.060 | 0.065 | 0.050 | 0.060 | 0.065 | 0.07 | 0.08 | 0.09 | 0.10 | 0.11 | 0.12 | 0.13 | 0.14 | 0.15 | 0.16 | 0.20 | 0.25 |
| 1.00 | 1.00 | 1.20 | 1.25 | 1.30 | 1.40 | 1.50 | 1.60 | 1.40 | 1.50 | 1.60 | 1.70 | 1.80 | 1.90 | 2.00 | 2.10 | 2.20 | 2.30 | 2.40 | 2.50 | 2.60 | 2.70 | 2.80 | 2.90 | 3.00 | 3.10 | 3.20 | 3.30 | 3.40 | 3.50 | 3.80 | 4.00 |
Princess Cuts
Approximate Carat Weight
Approximate MM size
| 0.014 | 0.018 | 0.020 | 0.025 | 0.030 | 0.035 | 0.040 | 0.045 | 0.05 | 0.06 | 0.07 | 0.08 | 0.09 | 0.10 | 0.16 | 0.20 | 0.25 |
| 1.20 | 1.30 | 1.40 | 1.50 | 1.60 | 1.70 | 1.80 | 1.90 | 2.00 | 2.10 | 2.20 | 2.30 | 2.40 | 2.50 | 3.00 | 3.20 | 3.50 |
FANCY COLOURS
We have a range of fancy coloured diamonds from small natural pink and yellow melee, to larger one-off browns to vivid yellows. Please call for our latest list.
Fancy Shapes
We have a large stock of fancy shape diamonds including, but not limited to, emerald cuts, ovals, princess cuts, baguettes, marquise, pear shapes, carre, and tapered baguettes. We also have pairs of half-moons, trapeziums, trillions etc for side stones.
In fancy cut diamonds
We generally only keep the higher colours and top makes as we have found that these are by far the most popular goods for our customers to stock. We are extremely careful with the makes in the fancies as many of our customers want to mix different sizes of the same shape together in the same piece and they must therefore have consistency. For example if you wanted to put a 4Opt Emerald cut together with a pair of 20pts, it would be no problem as the makes are the same, and would match perfectly.
In fancies we generally keep the following sizes
10pts to 13pts
15pts to 17pts
18pts to 22pts
23pts to 27pts
28pts to 37pts
38pts to 44pts
45pts to 69pts
70pts to 89pts
90pts to 99pts
1ct+
GIA
CERTIFIED DIAMONDS
The demand for certified diamonds has increased dramatically over the last few years, with the result that virtually all diamonds over 0.50ct now come with a certificate. 90% of all our certified stock is GIA certified. The GIA is renowned as the most accurate independent grading laboratory in the world.
