Rapaport Investment grade diamonds are top quality (D-H, IF-VS2) diamonds graded by the Gemological Institute of America (GIA) and then graded a second time by Rapaport Laboratories (RapLab). Select diamonds that meet stringent Rapaport Specification A1 investment grade standards are issued a Rapaport Investment Diamond Report (IDR).
Bid/Ask Markets for Investment Diamond Reports are being developed on Bloomberg (DIAM) and RapX – Rapaport Diamond Exchange. Investors can secure diamond storage against warehouse receipts.
For additional information about how to buy or sell IDRs please contact the Rapaport Trading Desk at TradeDesk@Diamonds.Net or +1-212-354-9100.
The Rapaport Investment Diamond Report (IDR) identifies fine quality diamonds, providing the trade, investors and consumers with the highest level of confidence in quality.
Rapaport Investment Diamond Reports (IDRs) are only issued for fine quality 0.50 ct. and larger, D-H, IF-VS2, excellent cut, polish and symmetry diamonds that meet Rapaport Specification A1 investment standards that reject borderline grades and factors that reduce liquidity,
All Rapaport investment grade diamonds have independently graded Gemological of America (GIA) grading report in addition to a Rapaport Investment Diamond Report.
For more information about Rapaport Investment Diamond Reports please email info@raplab.com, call +1-702-893-9400 or visit www.raplab.com.
Grading Report |
GIA |
Shape |
Round Brilliant |
Size |
0.50ct+, No .00 sizes for 1.00ct and larger |
Color |
D-H |
Clarity |
IF-VS2 |
Cut |
Excellent |
Polish |
Excellent |
Symmetry |
Excellent |
Culet |
None |
Depth % |
59.0 - 62.5% |
Table % |
56 - 60% |
Girdle |
No Extremely Thin, Extremely Thick or Very Thick |
Fluorescence |
None |
Requirements |
No GIA Color Comment |
Requirements |
No Knot or Cavity |
Requirements |
No Extra Facet or Natural for D-H, IF-VVS2 |
Requirements |
No Graining Comment |
Requirements |
No Tint, "Grademaker Center Black" or Open Inclusions |
Requirements |
Eye Clean |
Requirements |
No Marange Diamonds |
SIZE CT. |
MIN MM |
0.50 - 0.59 |
5.05 |
0.60 - 0.69 |
5.35 |
0.70 - 0.79 |
5.65 |
0.80 - 0.89 |
5.9 |
0.90 - 0.99 |
6.15 |
1.01 - 1.09 |
6.4 |
1.10 - 1.24 |
6.55 |
1.25 - 1.49 |
6.85 |
1.50 - 1.69 |
7.3 |
1.70 - 1.99 |
7.6 |
2.01 - 2.49 |
8.05 |
2.50 - 2.99 |
8.6 |
3.01 - 3.49 |
9.15 |
3.50 - 3.99 |
9.62 |
4.01 - 4.99 |
10.05 |
5.01 - 5.99 |
11 |
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