Rubies, the red variant of corundum, are the most expensive gemstone after diamonds. The distinctive 'pigeons blood' colored rubies from Mogok (Burma, or Myanmar as it is now referred to) have the highest value. Specimens over 5 ct. as well as eye clean stones are very rare. Heat treatment is usually applied to improve their color and reduce small inclusions.
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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