標 本 名: | コランダム (鋼玉), サファイア (Corundum, Variety: Sapphire)
| 化学組成: | Al2O3 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Ratnapura, Sabaragamuwa Province, スリランカ (Sri Lanka) | An emerald cut sapphire from Sri Lanka with a SI1 clarity, due to one small inclusion which is in fact a color concentration. Apart from that stone is eye clean with good polish and luster. The color is a medium blue and the stone has been heat treated. The weight is 2,89 carat!
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