10 Dec 2012
13:00 PST
Los Angeles
Natural History-Unmounted Gemstones, Jewelry, Pearls
Back to auction 20082
Natural History-Unmounted Gemstones, Jewelry, Pearls
Back to auction 20082
Rare Double-star Blue Sapphire--A Published Gem
Sri Lanka
Polished as an oval cabochon with a high dome, this sapphire of classic Sri Lankan cornflower blue, possesses a very unusual form of asterism: when the stone is illuminated with a single point light source, two superimposed six-rayed stars appear. The rays of one star are almost parallel to, and just to the side of, the other.
Weighing approximately 38.56 carats and measuring 16.5 x 15.0 x 12.0mm
Polished as an oval cabochon with a high dome, this sapphire of classic Sri Lankan cornflower blue, possesses a very unusual form of asterism: when the stone is illuminated with a single point light source, two superimposed six-rayed stars appear. The rays of one star are almost parallel to, and just to the side of, the other.
Weighing approximately 38.56 carats and measuring 16.5 x 15.0 x 12.0mm
Sold for
US$ 8,750
inc. premium
Footnotes
- Accompanied by a copy of an article from Gems & Gemology, Fall 1993, in which the unusual double star sapphire was the subject of an article which explained the origin of its phenomenon.
Category: Natural History
Auction terms and conditions
Contacts
Claudia Florian
Bonhams
Work
7601 W. Sunset Boulevard
Los Angeles,
90046
United States
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Natural History