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 2025 by NGC. Reproduction is strictly prohibited.


WHITE DIAMONDS (1.00-1.49CTS)

COLOR IF VVS1 VVS2 VS1 VS2
D 14400-16000 11500-12800 9200-10200 7800-8700 6500-7300
E 11250-12500 10000-11100 8300-9300 7100-7900 6000-6600
F 9600-10700 8700-9700 7500-8400 6400-7200 5400-6000
G 7400-8200 7000-7700 6300-7000 5500-6200 4800-5400
H 5500-6100 5200-5800 5000-5500 4600-5200 4300-4800

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


NO HEAT BURMA RUBY (1.00-1.95CTS)

COLOR FI LI1 LI2 MI1 MI2
2.5 NEGOTIABLE 99000-110000 72000-90000 52800-66000 35000-44000
3.0 NEGOTIABLE 48000-60000 40000-50000 32000-40000 20000-25000
3.5 NEGOTIABLE 34000-42000 28000-35000 20000-25000 16000-20000
4.0 NEGOTIABLE 24000-30000 16000-20000 14000-17500 12000-15000
4.5 NEGOTIABLE 14000-18000 12000-15000 10000-12500 10000-11500

American Gemological Laboratories (AGL) reports with positive identification only, no heat or clarity enhancement, ovals and cushions with ideal parameters. For unheated African ruby, deduct 50%-75%. Two carat Burma Rubies sell for a 300% premium to one carat prices. Three carat Burma Rubies sell for 500% premium to one carat prices.


NO HEAT BURMA SAPPHIRE (1.00-1.99CTS)

COLOR FI LI1 LI2 MI1 MI2
2.5 NEGOTIABLE 18400-23 000 16000-20000 12000-15000 9200-11500
3 NEGOTIABLE 12000-15000 11600-14500 9000-11500 7600-9500
3.5 NEGOTIABLE 8400-10500 8000-10000 5600-7000 4800-6000
4 NEGOTIABLE 6000-7300 5200-6500 4000-5000 2800-3600
4.5 NEGOTIABLE 4000-5000 3600-4500 2400-3000 2000-2500

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 African, deduct 60%. Two carat Burma sapphires sell for a 30% premium to one carat prices and three carats 100%.


NO CLARITY ENHANCEMENT COLOMBIAN EMERALDS (1.00-1.99CTS)

COLOR LI1 LI2 MI1 MI2 HI
2.5 NEGOTIABLE 36000-45000 22000-29000 20000-25000 4200-5200
3 NEGOTIABLE 30000-37500 20000-25000 18000-22500 3000-3800
3.5 NEGOTIABLE 27000-34000 18000-22500 16000-20000 2400-3000
4 NEGOTIABLE 25000-31000 16000-20000 14000-17500 1200-1500
4.5 NEGOTIABLE 22500-28000 14000-16800 12000-15000 1000-1200

American Gemological Laboratories (AGL) reports with positive identification only, no clarity enhancement, emerald cuts with ideal parameters. No Clarity enhancement emeralds sell for 300%-500% premium over treated Colombian emeralds, depending on quality. All other emerald sources sell for discounts to Colombian gems.