Comprising an oval black opal cabochon, 8. 6 cts. by formula, with even Cerulean-green color play encircled by gold leaves. Ca. 1930. Marked Walton & Co., 14k. 1 9/16" x 1". 6.5 dwt.
Auctioneer:
Rago Auctions
Date:
2016-12-04
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
Art Nouveau peacock with black opal body, demantoid garnet feathers, ca. 1910. Partial marks (due to sizing) 14k and Walton. Size 7. 5.2 dwt. Note: Read more…
Auctioneer:
Rago Auctions
Date:
2015-12-06
MARCUS & CO. BLACK OPAL, DIAMOND PLATINUM RING; Oval Australian black opal cabochon, 22.9 x 14 x 4.77 mm., 8.87 cts. by formula, red-orange/blue-green spectral Read more…
Auctioneer:
Rago Auctions
Date:
2014-12-07
Art Nouveau 14kt Gold and Black Opal Stickpin, Walton & Co., the opal measuring approx. 12.80 x 9.50 mm, framed by scrolling leaf motifs, signed. Read more…
Auctioneer:
Skinner
Date:
2013-12-10
An oval black opal cabochon, 22.2 x 11.3 x 5.9mm set in shaded translucent green and blue enameled surmount suspends similar pear-shaped black opal cabochon Read more…
Auctioneer:
Rago Auctions
Date:
2016-11-05
Art Nouveau 14kt Gold and Black Opal Stickpin, Walton & Co., with scrolling leaf motifs, signed. Read more…
Auctioneer:
Skinner
Date:
2005-12-13
Art Nouveau 14kt Gold and Opal Peacock Ring, Walton & Co., the elaborate peacock set with an oval cabochon opal, the tail with old European-cut Read more…
Auctioneer:
Skinner
Date:
2014-06-12
TIFFANY & CO. PLATINUM BLACK OPAL CUFF LINKS, 1910-1920. Each double cuff link set with two circular black opal cabochons, average 11.5 x 4.75 mm, Read more…
Auctioneer:
Rago Auctions
Date:
2011-12-04
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
Arts & Crafts Black Opal, Demantoid Garnet, and Sapphire Brooch, Tiffany & Co., designed as a pear-shape black opal with demantoid garnets and sapphires among Read more…
Auctioneer:
Skinner
Date:
2013-12-10
