Sapphires are a variety of corundum, existing in almost all colors. A sapphire's color is the main factor for price estimation. Heat treatment is usually applied to improve their color and reduce small inclusions. It can be difficult to exactly identify the color online, therefore we recommend that you refer to Gemval.com for an appraisal. Please accept that a value-approximation error in the 15-20% range is possible.
The figures are based on Gemval's aggregated valuation statistics for the retail market. Irrelevant, controversial or repeat data are excluded from our analysis wherever possible. The figures are updated monthly.
Occurrence is represented in % for different weight categories.
Occurrence is represented in % for different value intervals.
Occurrence is represented in % for different clarity grades.
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