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Platinum, Cognac & White Diamond Sapphire Floral Brooch
Catalogue:
Estate Jewelry:
Platinum:
Vintage:
Pre 1960 item# 790100
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Kensington House Antiques
(301)942-0955
$8,995
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A magnificent vintage platinum brooch formed as a floral bouquet featuring three primary blossoms tied at the bottom with a ribbon, and set with a mix of old single cut, old Swiss cut, old European cut, old mine cut, early modern brilliant round cut and French cut diamonds and round brilliant cut sapphires. The center flower features a .83-carat, old mine cut diamond of fancy cognac color and SI2 clarity; surrounded by sapphires. A flower bud is represented just above by a prong-set .34-carat old European cut diamond of fancy light cognac color and VS2 clarity. Leaves are bead-set with mixed cut white diamonds, all in the E-G color range with VS1 to SI2 clarity. Berries are represented by collet-set blue sapphires. The sapphires display P2B zone 30 color (moderate purplish blue) on the Gem Dialogue scale and have VS clarity. The hinged double pinstem is worked in 14K white gold, but the body of the brooch is tested and guaranteed platinum.The range of different diamond cuts in this brooch clearly indicates it was specially made to order for a customer using the diamonds already in her possession. Such commissioned pieces are often not fully hallmarked, hence the lack of a mark for platinum or a maker's mark. The quality of workmanship is superb. The brooch is accompanied by a June 2008 written appraisal (GIA & NAJA) conforming to the above description and assigning a replacement value of $16,500. Origin: America, ca. 1950. Condition: excellent, all original. Size: 2" x 1-1/4". Weight: 16.3 gr. Approximate Total Gemstone Weight: diamond, 1.84 carats (1.17 carats of fancy colored diamonds); sapphire, 2.1 carats.
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Vintage Platinum Diamond & Emerald Ring
Catalogue:
Estate Jewelry:
Platinum:
Vintage:
Pre 1950 item# 785008
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Kensington House Antiques
(301)942-0955
$3495
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Stunning vintage platinum floral form ring featuring prong-set round brilliant-cut diamonds interspersed with baguette emeralds. The center diamond (.345 carat) is raised slightly above the surrounding diamond and emerald skirt, creating an elegant three-dimensional effect. The stones are of fine quality. The central diamond is estimated at H color, VS2 clarity; while the others are estimated at I color, VVS clarity. The emeralds have strongly saturated color and fine clarity. The inside of the shank is marked platinum and is hallmarked by Maurice Tishman, Inc. (New York).Origin: America, ca. 1950. Condition: excellent, all original. Finger Size: 6-1/4. Size: 1/2” diameter. Weight: 6.0 grams. Approximate Total Gemstone Weight: diamond, 1.55 carats; emerald, .57 carat.
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Art Deco Platinum, Diamond, Sapphire & Pearl Ring
Catalogue:
Estate Jewelry:
Platinum:
Vintage:
Pre 1930 item# 763858
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Kensington House Antiques
(301)942-0955
$1450
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Stunning Art Deco lady’s ring in platinum set with diamonds, blue sapphires and a 7.00mm pearl. The octagonal face is bordered with sixteen bead-set round diamonds surrounding rectangular sapphires. The ring is centered with a 7.0mm pearl. The diamonds are of nice quality, estimated at I color, SI clarity. The pearl has excellent luster and cream body color with rose overtones. The inside of the shank is marked “10% Irid Platinum”.Origin: America, ca. 1920. Condition: excellent. Finger Size: 4.5. Size: crown, ˝” x ˝”. Weight: 6.0 grams. Approximate Total Gemstone Weight: diamond, .5 carat; sapphire, .25 carat.
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Edwardian 18K Gold Platinum Diamond Emerald Pearl Pin
Catalogue:
Estate Jewelry:
Platinum:
Vintage:
Pre 1930 item# 704489
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Kensington House Antiques
(301)942-0955
$2895
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A stunning Edwardian “stile guirlande” (“garland style”) brooch worked in 18K yellow gold and platinum, and set with diamonds and emeralds. The garland style was noted for its delicacy, with an emphasis on symmetrical floral and foliate motifs highlighted with geometric elements. Exhibiting all these characteristics, this brooch is an excellent example of the style. The rose-cut and old European-cut diamonds are bead-set in beautifully millgrained platinum, the elements joined with knife-edge connectors. The emeralds are set in yellow gold. The combination of diamonds and emeralds is somewhat unusual in French jewels of this period, and both are of superb quality. The diamonds have fine clarity and color and the emeralds have an intensely saturated color. The brooch suspends a 5.7mm pearl of very fine quality, which dangles freely to provide some movement. The construction of the back, with its ornately pierced gallery, demonstrates the high level of craftsmanship that went into this piece. The brooch has two pendant hooks so it can be worn from a delicate chain. The back is marked with French hallmarks, and also with the mark, “FO”, of an unidentified jeweler.Origin: France, ca. 1910. Condition: excellent, all original. Size: 1-11/16” x 1-1/4”. Weight: 5.5 grams. Approximate Total Gemstone Weight: diamond, .8 carat; emerald, .27 carat.
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Edwardian Style Platinum & Diamond Earrings
Catalogue:
Estate Jewelry:
Platinum:
Vintage:
Pre 1980 item# 513902
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Kensington House Antiques
(301)942-0955
$2,195
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Stunning platinum and diamond earrings in the "stile guirland" or "garland style" developed in Paris by Cartier, but first made fashionable by Queen Alexandra of England. Each earring is composed of a floral motif surmount, suspending a bow, suspending a wreath circled about another floral motif, suspending a teardrop. Each earring is fully articulated, so that all the parts move independently with the slightest movement. Each earring contains 51 round brilliant-cut diamonds of very fine color and clarity. The larger stones are collet-set, while the smaller stones are bead-set. The platinum setting is very finely millegrained. The backs are marked "PT900".Origin: American, circa 1980. Condition: excellent; the posts are original and the clutches are 18 karat white gold replacements (a normal occurence, since clutches tend to wear out or get lost easily). Size: 2" long. Weight: 18.75 grams. Approximate Total Diamond Weight: 2.5 carats.
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French Art Deco Platinum 18K Diamond Ruby Pin
Catalogue:
Estate Jewelry:
Platinum:
Vintage:
Pre 1930 item# 156963
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Kensington House Antiques
(301)942-0955
$2,650
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Stunning navette-shaped platinum and 18K yellow gold bar pin pave-set with two carats of rose-cut and old-European cut diamonds around a central, ˝-carat collet-set cushion-cut natural ruby. The ruby has spectacular, highly-saturated color. The diamonds are nicely white and have fine clarity. The platinum and gold setting is of the finest quality. The back, retaining its original pinstem and early safety clasp, is stamped with French hallmarks for 18K gold and platinum.Circa 1925. Condition: excellent (one of the small diamonds has a small chip when viewed under a loupe), all original. Size: 2-11/16” x 5/32”. Weight: 6.5 grams. Approximate Total Gemstone Weight: ruby, .54 carat; diamond, 2.0 carats.
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