Platinum__Emerald_and_Diamond_Ring__Harry_Winston__Circa_1955b

Platinum__Emerald_and_Diamond_Ring__Harry_Winston__Circa_1955a

Platinum, Emerald and Diamond Ring, Harry Winston, Circa 1955. Photo Sotheby's

The square emerald-cut emerald weighing 16.93 carats, flanked by tapered baguette diamonds, size 5½, unsigned. With signed box. Estimate 800,000—1,000,000 USD. Lot Sold 1,874,500 USD

Accompanied by AGL report no. CS 42210 stating that the emerald is of Colombian origin, clarity enhancement: insignificant.

Together with a copy of proof of purchase from Harry Winston, dated May 23, 1980.

Platinum__Emerald_and_Diamond_Ring

Platinum, Emerald and Diamond Ring. Photo Sotheby's

The sugarloaf cabochon emerald weighing 12.66 carats, framed and flanked by round diamonds weighing approximately .35 carat, size 5¾. Estimate
175,000—225,000 USD. Lot Sold  212,500 USD

Accompanied by AGTA report no. 92025611 stating that the emerald is of Colombian origin, minor clarity enhancement.

Pair_of_Platinum__Fluted_Emerald_Bead_and_Diamond_Earclips__Cartier__London__Circa_1930b

Pair_of_Platinum__Fluted_Emerald_Bead_and_Diamond_Earclips__Cartier__London__Circa_1930a

Pair of Platinum, Fluted Emerald Bead and Diamond Earclips, Cartier, London, Circa 1930.  Photo Sotheby's

Designed as flowers set with fluted emerald beads, accented by round and baguette diamonds weighing approximately 2.50 carats, signed Cartier, London. Estimate 15,000—20,000 USD. Lot Sold 140,500 USD

Platinum__Emerald_and_Diamond_Longchain_Necklace

Platinum, Emerald and Diamond Longchain Necklace.  Photo Sotheby's

Composed of tumbled emerald beads weighing 236.42 carats, alternating with diamond briolettes weighing 18.98 carats, length 61 inches. Estimate 50,000—70,000 USD. Lot Sold 116,500 USD

Platinum__Emerald_and_Diamond_Ring2

Platinum, Emerald and Diamond Ring. Photo Sotheby's

The cushion-shaped emerald weighing 4.61 carats, flanked by cushion-shaped diamonds weighing approximately 2.00 carats, accented by small round diamonds, size 6¼. Estimate 80,000—120,000 USD. Lot Sold 98,500 USD

Accompanied by AGL report no. CS 40178 stating that the emerald is of Colombian origin, clarity enhancement: none.

Silver_Topped_Gold__Emerald__Natural_Pearl_and_Diamond_Brooch__Circa_1890a

Silver_Topped_Gold__Emerald__Natural_Pearl_and_Diamond_Brooch__Circa_1890b

Silver-Topped Gold, Emerald, Natural Pearl and Diamond Brooch, Circa 1890. Photo Sotheby's

Set in the center with a cabochon emerald weighing approximately 12.00 carats, surmounted by 2 old mine diamonds weighing approximately 1.85 and .85 carats, flanked by 2 antique pear-shaped diamonds weighing approximately 2.95 carats, accented by smaller old European-cut and rose-cut diamonds weighing approximately 6.25 carats, suspending a natural pearl drop measuring approximately 14.05 by 10.00 mm. With fitted, gilt tooled leather box. Estimate 40,000—60,000 USD. Lot Sold 80,500 USD

Accompanied by SSEF report no. 56999 stating natural pearl, saltwater.

Pair_of_Platinum__Emerald_and_Diamond_Pendant_Earrings

Pair of Platinum, Emerald and Diamond Pendant-Earrings. Photo Sotheby's

Supporting emerald drops weighing 38.04 carats, surmounted by cushion-shaped and small round diamonds weighing 1.92 carats. Estimate 40,000—60,000 USD. Lot Sold 71,500 USD

Platinum__Emerald_and_Diamond_Ring__Circa_1925

Platinum, Emerald and Diamond Ring, Circa 1925.  Photo Sotheby's

The square emerald-cut emerald measuring approximately 10.47 by 10.25 by 6.05 mm., framed by single-cut and baguette diamonds weighing approximately .50 carat, size 7¼.  Estimate 20,000—30,000 USD. Lot Sold 53,125 USD

Accompanied by AGL report no. CS 44029 stating that the emerald is of Colombian origin, clarity enhancement: insignificant to faint.

Platinum__Carved_Emerald_and_Diamond_Jabot__Cartier__France__Circa_1925

Platinum, Carved Emerald and Diamond Jabot, Cartier, France, Circa 1925.  Photo Sotheby's

Of Indian style set with a carved emerald palmette and a carved emerald flower, accented by small old European-cut, single-cut and baguette diamonds, signed Cartier, Made in France, French assay marks. Estimate 10,000—15,000 USD. Lot Sold 46,875 USD

Pair_of_Platinum__18_Karat_Gold__Emerald_and_Diamond_Pendant_Earrings

Pair of Platinum, 18 Karat Gold, Emerald and Diamond Pendant-Earrings. Photo Sotheby's

Set with square emerald-cut emeralds weighing approximately 3.85 carats, accented by round, calf's-head-cut and half-moon-shaped diamonds weighing approximately 1.55 carats. Estimate 30,000—40,000 USD. Lot Sold 37,500 USD

 Platinum__Emerald_and_Diamond_Brooch__Circa_1930

Platinum, Emerald and Diamond Brooch, Circa 1930. Photo Sotheby's

Set in the center with an emerald-cut emerald weighing approximately 3.50 carats, within an openwork plaque set with old European-cut, single-cut, baguette and half-moon-shaped diamonds weighing approximately 4.60 carats. Estimate 10,000—15,000 USD. Lot Sold 28,750 USD

Platinum__Emerald_and_Diamond_Double_Clip_Brooch__Circa_1930

Platinum, Emerald and Diamond Double-Clip Brooch, Circa 1930.  Photo Sotheby's

Set with oval cabochon emeralds, accented by old European-cut and baguette diamonds weighing approximately 6.15 carats. Estimate 8,000—12,000 USD. Lot Sold 17,500 USD

 Pair_of_18_Karat_White_Gold__Emerald_and_Diamond_Earrings

Pair of 18 Karat White Gold, Emerald and Diamond Earrings. Photo Sotheby's

Set with oval emeralds weighing 1.73 and 1.72 carats, framed by small round diamonds weighing approximately .25 carat. Estimate 5,000—7,000. USD. Lot Sold 8,750 USD

Sotheby's. Magnificent Jewels,  14 Apr 11, New York www.sothebys.com