• 橢圓形天然「斯里蘭卡」星光藍寶石重50.45卡拉
• 配鑽共重約4.00卡拉
• 鉑金鑲嵌

Colour and Clarity: According to Gübelin report, the star sapphire is natural, of Sri Lankan origin, with no indication of heating, also accompanied by Gübelin information sheet stating that this star sapphire is rarely found in nature. Please refer to the report for details. In our opinion, the star sapphire is of medium blue colour, with visible colour zoning but pleasing, very good translucency. Upon spot lighting, the sapphire shows two distinct and soft six-ray stars atop the dome, known in the trade as 'Double-star'. Diamonds are about H to I colours, VVS to SI clarity. Conditon: Very fine and whimsical platinum mount, in very good condition.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

• 附瑞士Gübelin證書（編號13067356，日期2013年6月27日）• 星光藍寶石產地為斯里蘭卡 • 未經加熱處理