- 1690
COLOUR-CHANGING SAPPHIRE AND DIAMOND RING
Estimate
180,000 - 250,000 HKD
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Description
- colour-changing sapphire, diamond, platinum
Centring on a colour-changing sapphire weighing 12.28 carats, framed by circular-cut diamonds extending to the shoulders, the diamonds together weighing approximately 1.50 carats, mounted in platinum. Ring size: 5¾
Condition
Colour and Clarity: According to GRS report, the colour-changing sapphire is natural, of Ceylon origin, with no indication of thermal treatment. Please refer to the report for details. In our opinion, this sapphire shows a noticeable colour-change from medium deep violetish-blue colour in daylight, to purple in incandescent lighting. Clean to naked eyes with a few small included crystals under loupe check, not seen to naked eyes. Diamonds in the surround are about F to G colours, VS clarity.
Condition: Platinum ring mount, overall 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.
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.
Catalogue Note
Accompanied by GRS report numbered GRS2009-081094, dated 14 August 2009, stating that the colour changing sapphire is natural, of Sri Lankan origin, colour-changing from violetish-blue (daylight) to purple (incandescent light), with no indication of thermal treatment.