Enhanced Black Diamonds are black diamonds supplied according to specified size and grading requirements. The available commercial grades include -000, -00, -0, -2, +2–5, +5–6.5, +6.5–8 and +8–15.
The supplied technical chart also provides sieve-size references. The visible chart covers sieve ranges from +14.0–14.5 to +19.5–20.0, with corresponding approximate sizes of 3.3 mm to 4.4 mm and approximate individual weights from 0.150 ct to 0.340 ct.
| Grade / Size | Price |
|---|---|
| -000 | ₹14,500 |
| -00 | ₹13,000 |
| -0 | ₹11,500 |
| -2 | ₹9,500 |
| +2–5 | ₹8,500 |
| +5–6.5 | ₹7,500 |
| +6.5–8 | ₹6,500 |
| +8–15 | ₹6,000 |
| Sieve Range | Approx. MM | Approx. Ct./Piece |
|---|---|---|
| +14.0–14.5 | 3.3 mm | 0.150 ct |
| +14.5–15.0 | 3.4 mm | 0.160 ct |
| +15.0–15.5 | 3.5 mm | 0.170 ct |
| +15.5–16.0 | 3.6 mm | 0.180 ct |
| +16.0–16.5 | 3.7 mm | 0.190 ct |
| +16.5–17.0 | 3.8 mm | 0.210 ct |
| +17.0–17.5 | 3.9 mm | 0.230 ct |
| +17.5–18.0 | 4.0 mm | 0.250 ct |
| +18.0–18.5 | 4.1 mm | 0.270 ct |
| +18.5–19.0 | 4.2 mm | 0.300 ct |
| +19.0–19.5 | 4.3 mm | 0.320 ct |
| +19.5–20.0 | 4.4 mm | 0.340 ct |
Enhanced Black Diamonds are offered in different grades and size categories for buyers requiring specified black diamond material. Buyers can provide their required grade, sieve range, MM size, approximate carat weight per piece and quantity when requesting a quotation.
