AN OVAL CABOCHON CUT NATURAL CHRYSOCOLLA-IN-CHALCEDONY FROM ...

1/4

Estimate

£5,000 - £8,000

Fees

AN OVAL CABOCHON CUT NATURAL CHRYSOCOLLA-IN-CHALCEDONY FROM THE INSPIRATION MINE AND TEN (10) ROUND BRILLIANT CUT NATURAL DIAMONDS SET IN 950 PALLADIUM HALLMARKED RING,

Total jewellery weight: 15.56gms.
Oval cabochon measurements: 31.75 x 19.89 x 4.43 mm
Brilliant round cut diamonds, weight 0.70ct, colour G-H, clarity VS-1 - VS-2.

Comes with certificate from the World Gemological Institute.

Gem silica is a bluish green to greenish blue variety of chalcedony that receives its vivid colour from the presence of copper. It is often known as chrysocolla chalcedony or gem silica chrysocolla.
Gem silica is the most valuable variety of chalcedony, the best specimens have a pleasing blue colour, strong saturation, a uniform translucence, and a lack of inclusions.

Only a few locations have produced noteworthy amounts of gem silica. Most of these locations have been productive for only a few years before being worked out.
The Inspiration Mine in Arizona was the best source of high-quality gem silica but is now closed.
This gemstone came from the Inspiration Mine

Closed
Auction Date: 4th Dec 2023 at 10:30am

Fees apply to the hammer price:

Room and Absentee Bids:
26.40% inc VAT*

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30% inc VAT*

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Sale Dates:
4th Dec 2023 10:30am (Lots 1 to 565)