Ruby Value

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Burma Ruby – Unheated

Origin and lack of treatment should be certified. Prices for oval and cushion cuts. Add up to 20% or deduct to 10% for other cutting. Add 7% to 10% for rounds, pears, marquis. Add 15% to30% for emerald cuts.

Burma Ruby – Unheated – Top Color: R 6/6

No trade data available. As of May 2015, the record price for a ruby is approximately $1.172 million per carat. ($30 million for a 25.59 carat Mogok “pigeon’s blood” ruby).

Burma Ruby - Unheated - Very Good Color: R 5/6, 7/5; slpR 5/6, 6/6, 7/5; stpR 6/6

0.50-0.99 carat
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
1.00-1.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
2.00-2.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
3.00-4.99 carats
VVS
- /ct
VS/SI
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SI/I
- /ct
5.00+ carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct

Burma Ruby - Unheated - Good Color: R 6/5; slpR 6/5; stpR 5/6

0.50-0.99 carat
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
1.00-1.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
2.00-2.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
3.00-4.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
5.00+
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct

Burma Ruby - Unheated - Good Color: R 6/5; slpR 6/5; stpR 5/6

0.50-0.99 carat
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
1.00-1.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
2.00-2.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
3.00-4.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
5.00+ carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct

Burma Ruby - Unheated - Fair Color: R 5/5, 6/4, 7/4; slpR 5/5, 6/4, 7/4

0.50-0.99 carat
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
1.00-1.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
2.00-2.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
3.00-4.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
5.00+ carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct

Ruby – Heat Treated

Prices for oval and cushion cuts. Add up to 20% or deduct to 10% for other cutting. Add 7% to 10% for rounds, pears, marquis. Add 15% to30% for emerald cuts.

Ruby – Heat Treated – Top Color: R 6/6

Not enough trade data available.

Ruby - Heat Treated - Very Good Color: R 5/6, 7/5; slpR 5/6, 6/6, 7/5; stpR 6/6

0.50-0.99 carat
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
1.00-1.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
2.00-2.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
3.00-4.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
5.00+ carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct

Ruby - Heat Treated - Good Color: R 6/5; slpR 6/5; stpR 5/6

0.50-0.99 carat
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
1.00-1.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
2.00-2.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
3.00-4.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
5.00+ carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct

Ruby - Heat Treated - Fair Color: R 5/5, 6/4, 7/4; slpR 5/5, 6/4, 7/4

0.50-0.99 carat
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
1.00-1.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
2.00-2.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
3.00-4.99 carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct
5.00+ carats
VVS
- /ct
VS/SI
- /ct
SI/I
- /ct

Additional Ruby Shapes and Types

Cabochons

.5 to 1 carat
Cabochons
to /ct
over 3 carats
Cabochons
to /ct

Star Ruby

.5 to 1 carat
Near Top Color
to /ct
Over 1 carat
Near Top Color
to /ct

Indian Rubies

All Sizes
Indian Rubies
to /ct
View Ruby Profile

The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.

Large, gem-quality rubies can be more valuable than comparably sized diamonds and are certainly rarer. In fact, smaller blue sapphires (1-3 cts) are relatively abundant compared to small, gem-quality rubies. As a result, even small rubies have relatively high values.

purplish red ruby - Myanmar

Oval-cut, purplish red ruby, 1.52 cts, 7.1 x 5.7 x 4.1 mm, unheated, Myanmar. © ARK Rare Gems. Used with permission.

The vast majority of rubies are “native cut” in their country of origin. High-value ruby rough is tightly controlled and rarely makes its way to custom cutters. Occasionally, such native stones are recut to custom proportions, albeit at a loss of weight and diameter. Custom-cut and recut stones usually have higher values per carat than native or commercial-cut stones.

antique ruby and diamond ring

This is a beautiful antique ring, but the ruby and diamonds have received native cuts. While these cuts retain much of the mass of the rough stones, the resulting gems have irregular shapes and don’t look very lively. 18k yellow gold, 1-ct ruby, and 0.15 ctw diamonds. Photo courtesy of liveauctioneers.com and Burchard Galleries.

Origin and color greatly affect the value of a ruby. For more information on ruby quality factors, consult our buying guide and appraisal guide.