Gemstone Price Indices


The prices below are general indications only. Most diamonds and gemstones will be offered at a discount to these lists. However, exceptional stones may sell above these list prices. The only true price is what a knowledgeable buyer and seller agree to as a transaction price. No guarantees are made and no liabilities are assumed as to the accuracy or validity of these prices.

Call 1-800-458-6453 or email NGC, Attn: R. Genis for more information.

Copyright 2020 by NGC. Reproduction is strictly prohibited.


DIAMONDS (1.00-1.49CTS)

COLOR IF VVS1 VVS2 VS1 VS2
D 16000-18000 14000-15500 12200-13600 11000-11900 9700-10500
E 13000-14500 12000-13000 10500-11700 9700-10800 8700-9600
F 11400-12700 10800-12000 9600-10700 9000-10000 8100-9000
G 9600-10700 9100-10200 8500-9500 8000-8800 7500-8300
H 8100-9000 8100-9000 7300-8100 7200-7800 6800-7600

Gemological Institute Of America (GIA) grading reports only, round shapes, well-cut stones with ideal parameters.


BURMA RUBY (1.00-1.95CTS)

COLOR FI LI1 LI2 MI1 MI2
2.5 NEGOTIABLE 57000-82000 40000-50000 24000-30000 20000-26000
3.0 NEGOTIABLE 35000-44000 22000-27000 16000-20000 13000-17000
3.5 NEGOTIABLE 22000-27000 20000-25000 12500-16000 11200-14000
4.0 NEGOTIABLE 15000-19000 11000-13800 8000-10300 7200-9000
4.5 NEGOTIABLE 9600-12000 9200-11500 8100-9000 7200-8000

American Gemological Laboratories (AGL) reports with positive identification only, no heat or clarity enhancement, ovals and cushions with ideal parameters. For unheated Mozambique ruby, deduct 50%-75%. Two carat Burma Rubies sell for a 100% premium to one carat prices. Three carat Burma Rubies sell for 3X premium to one carat prices.


BURMA SAPPHIRE (1.00-1.99CTS)

COLOR FI LI1 LI2 MI1 MI2
2.5 NEGOTIABLE 12000-16000 9000-12000 7200-9600 6000-8000
3 NEGOTIABLE 8250-11000 8000-9900 6000-8000 5400-7200
3.5 NEGOTIABLE 5400-7200 5000-6500 3900-5200 3500-4600
4 NEGOTIABLE 3300-4800 3200-4300 2600-3500 2100-2800
4.5 NEGOTIABLE 2250-3000 2000-2700 1600-2000 1300-1725

American Gemological Laboratories (AGL) reports with positive identification only, no heat or clarity enhancement, ovals and cushions with ideal parameters. For Kashmir, add 300%-500% depending on quality; for heated Ceylon or Madagascar, deduct 60%.


COLOMBIAN EMERALDS (1.00-1.99CTS)

COLOR LI1 LI2 MI1 MI2 HI
2.5 NEGOTIABLE 24000-32000 18000-24000 13500-18000 3600-4320
3 NEGOTIABLE 18000-24000 13500-18000 10500-14000 2520-3240
3.5 NEGOTIABLE 13500-18000 10500-14000 9000-12000 1800-2520
4 NEGOTIABLE 10500-14000 7500-10000 4500-6000 900-1260
4.5 NEGOTIABLE 9000-12000 6000-8000 3000-4000 820-990

American Gemological Laboratories (AGL) reports with positive identification only, no treatment emerald cuts with ideal parameters. For treated emeralds, deduct 50%. African and Brazilian emeralds, deduct another 50%.