Platinum, Sapphire, and Diamond Brooch, J. E. Caldwell, prong-set with ten step-cut and sixteen circular-cut sapphires, further set with eight square step-cut, two bullet, four hexagonal-cut and twenty-two circular-cut diamonds, approx. total wt. 8.00 cts., no. R8449, 2 1/4 x 1 3/4 in., signed J.E.C. & Co. Approx. sapphire weight 9 cts.
Auctioneer:
Skinner
Date:
2008-12-09
Art Deco Platinum, Sapphire, and Diamond Brooch, Tiffany & Co., set with a transitional-cut diamond weighing approx. 0.60 cts., further set with transitional-cut diamond melee, Read more…
Auctioneer:
Skinner
Date:
2011-09-13
Art Deco Platinum, Sapphire, and Diamond Brooch, bezel-set with an old European-cut diamond weighing approx. 0.75 cts., set with old European- and single-cut diamonds, approx. Read more…
Auctioneer:
Skinner
Date:
2012-12-04
Art Deco, Platinum, Sapphire, and Diamond Brooch, Cartier, set with an emerald-cut sapphire measuring approx. 7.00 x 5.50 x 3.00 mm, further pave-set with transitional- Read more…
Auctioneer:
Skinner
Date:
2011-09-13
Art Deco Platinum, Sapphire and Diamond Brooch, bezel-set with a circular-cut sapphire measuring approx. 10.30 x 5.22 mm, further set with fifty-four cushion shape, old Read more…
Auctioneer:
Skinner
Date:
2005-06-14
Platinum, Sapphire, and Diamond Brooch, Oscar Heyman & Bros., designed as flower clusters set with circular-cut sapphire centers and full- and pear-cut diamonds, approx. total Read more…
Auctioneer:
Skinner
Date:
2013-09-10
Art Deco Platinum, Sapphire, and Diamond Brooch, bezel-set with an oval-cut sapphire, further set with marquise-, square-, old European-, and transitional-cut diamonds, approx. total diamond Read more…
Auctioneer:
Skinner
Date:
2013-03-12
Art Deco Platinum, Sapphire, and Diamond Brooch, set with old European- and single-cut diamonds, French-cut sapphire accents, approx. total diamond wt. 1.95 cts., millegrain details, Read more…
Auctioneer:
Skinner
Date:
2012-12-04
Art Deco Platinum, Sapphire, and Diamond Brooch, bezel-set with an old European-cut diamond, and set throughout with old European and old single-cut diamonds, approx. Read more…
Auctioneer:
Skinner
Date:
2009-06-16
Art Deco Platinum, Sapphire, and Diamond Brooch, J.E. Caldwell & Co., bezel-set with a navette-shape sapphire measuring approx. 14.09 x 8.67 x 3.61 mm, and Read more…
Auctioneer:
Skinner
Date:
2007-06-12
Art Deco Platinum, Sapphire, and Diamond Brooch, bezel-set with a circular-cut sapphire, further set with old European, old mine, and old single-cut diamonds, millegrain accents, Read more…
Auctioneer:
Skinner
Date:
2007-03-13
