Black Opal and Diamond Ring, Gubelin, prong-set with a cabochon black opal weighing 5. 91 cts., framed by marquise- and full-cut diamonds, total diamond wt. 1.90 cts., platinum mount with 18kt white gold shank, size 5 1/2, maker's mark. Note: Accompanied by an insurance appraisal dated March 26, 1974, from Gubelin, Inc., New York.
Auctioneer:
Skinner
Date:
2014-09-09
Antique Black Opal and Diamond Ring, Tiffany & Co., centering an opal measuring 12.20 x 10.45 x 3.00 mm, flanked by old European-cut diamond melee, Read more…
Auctioneer:
Skinner
Date:
2008-09-16
Platinum, Black Opal, and Diamond Ring, the chevron shaped ring, set with a triangular shaped cabochon black opal measuring approx. 8.90 x 8.40 x 4.20 Read more…
Auctioneer:
Skinner
Date:
2011-03-15
Platinum, Black Opal, and Diamond Ring, centering a black opal measuring approx. 11.55 x 9.55 x 2.12 mm, with old-mine cut diamond accents, size 5 Read more…
Auctioneer:
Skinner
Date:
2018-05-15
Platinum, Black Opal and Diamond Ring centering a cushion-shaped black opal measuring approx. 9.52 x 9.60 x 3.70 mm., surrounded by old European, old mine Read more…
Auctioneer:
Skinner
Date:
2011-03-15
Art Deco Platinum, Black Opal, and Diamond Ring, set with an oval cabochon black opal measuring approx. 13.20 x 10.70 x 3.40 mm, framed by Read more…
Auctioneer:
Skinner
Date:
2011-03-15
WALTON & CO. BLACK OPAL AND DIAMOND RING, ca. 1900; Oval black opal, 11.5 x. 7.5 mm, two OMC diamonds and two green garnet accents Read more…
Auctioneer:
Rago Auctions
Date:
2012-12-09
18kt Gold, Black Opal and Diamond Ring, prong-set with a black opal measuring approx. 13.40 x 8.50 x 4.32 mm framed by full-cut diamond melee, Read more…
Auctioneer:
Skinner
Date:
2004-03-16
Art Deco Platinum, Black Opal, and Diamond Ring, J.E. Caldwell, set with a cabochon black opal measuring approx. 11.90 x 5.80 mm., framed by single-cut Read more…
Auctioneer:
Skinner
Date:
2010-12-07
Black Opal and Diamond Ring, prong-set with an oval cabochon opal measuring approx. 21.60 x 11.30 x 5.65 mm, framed by twenty-eight full-cut diamond melee, Read more…
Auctioneer:
Skinner
Date:
2005-06-14
18kt Gold, Black Opal, and Diamond Ring, centering a black opal cabochon measuring 14.10 x 6.20 mm, within a high relief floral surround, five full-cut Read more…
Auctioneer:
Skinner
Date:
2003-06-17
