Platinum Diamond Large Brooch Pin. Single & Rose Cut An

F.W. Drosten, Art Deco platinum and 14k rose gold accented diamond bar pin or brooch featuring one larger old mine cut and (18) smaller single cut diamonds weighing approximately 0.50cts total of I-1/

METAL: Platinum. GEMSTONES: old mine and rose cut diamonds approx. 263 stones., center stone is approx. 0.70ct. MEASUREMENTS: Brooch is 57mm x 40mm. TESTED: Platinum. WEIGHT: 18 grams.Gemstones have n

METLA: Platinum/ Gold stem/hardware. MEASUREMENTS: Brooch is 44mm x 30mm. GEMSTONES: Diamonds - approx. 73 stones, mix of rose cut and old mine old Euro. TESTED: Plat/Gold. WEIGHT: 10.9 grams.Gemstone

METAL: 18k Gold and Platinum. GEMSTONES: Rose cut and old mine cut diamonds approx. 25 stone. Emerald. MEASUREMENTS: Brooch is 52mm x 11.9mm. MARKED/TESTED: 750/Plat. WEIGHT: 5 grams.Gemstones have no

METAL: 18k Gold/ Platinum. MEASUREMENTS: Brooch is 58mm x 4.8mm. Comes with box. GEMSTONES: Old mine and rose cut diamonds approx.1.00-1.20ctw. TESTED: 18k/ Plat top. WEIGHT: 3.8 grams.Gemstones have

Mid century platinum and 18k yellow gold brooch with rose cut and old mine cut diamonds. Center diamond approx. 0.21ct, surrounding diamonds approx. 1.60ctw. Brooch is 48mm x 38mm. Tested: Plat, 18k.

METAL: Platinum. GEMSTONES: Rose cut diamonds. Blue stones. MEASUREMENTS: Brooch is 63mm x 15mm at widest point. TESTED: Platinum. WEIGHT: 10.2 grams.Gemstones have not been graded for color and clari

METAL: 18k Gold. GEMSTONES: Two small rose cut diamonds. Ruby. Center gemstone is chipped. MEASUREMENTS: Brooch is 43mm x 5mm (missing a dangle element). TESTED: 18k, Plat. WEIGHT: 3.2 grams.Gemstones

Platinum, Diamond and Sapphire Brooch One old European-cut diamond ap. .80 ct., single and rose-cut diamonds, square-cut sapphires, c. 1915, one sapphire missing, ap. 10.3 dwts. C Collection of an Eas

METAL: 18k Gold, Platinum. GEMSTONES: Center diamonds approx. 0.13ctw. Rose cut diamonds. MEASUREMENTS: Brooch/Pin is 70mm x 6mm. MARKED/TESTED: 750, Platinum. WEIGHT: 4.8 grams.Gemstones have not bee

Platinum, Diamond & Pearl Flower Broochcentering a 0.48 carat Old Mine Cut diamond accented by rose cut, single cut, Old European and Old Mine Cut diamonds weighing a total of 4.26 carats, suspending

Ladies Touchon & Co fine platinum and gemstone brooch / nurses watch. Features a reticulated pin back section embellished with rose cut diamonds. Underneath are platinum links with natural seed pearls

EDWARDIAN, GUILLOCHE ENAMEL, PEARL AND DIAMOND BROOCH Old mine, old European, single and rose cut diamonds and one cultured pearl measuring approximately 3.95 mm. Platinum-topped gold. 1 1/2 inches x

Diamond, platinum. c. 1915. 1 3/4" x 1/2". Geometric motif diamond and platinum brooch converts to a pair of dress clips. 66 rose-cut, single cut, and European cut diamonds, 1.40 t.w., VS clarity, and

Circa 1920s. Art Deco Car Brooch crafted in 18k yellow Gold and Platinum on top, accented with Rose cut Diamonds. Along with one natural Round cut Emerald. Weight: 5.4 grams. Measurements: 1.2 x 0.6 i

DESCRIPTION: Edwardian platinum/18k and .85 CTW diamond bar pin. Tested 18k white gold filigree bar pin with platinum top. Pave set with forty-one old European cut, single cut and semi-rose cut diamon

A BELLE EPOQUE DIAMOND PENDANT / BROOCH, EARLY 20TH CENTURY in yellow gold and platinum, the foliate body suspending swags, jewelled throughout with old European, single and rose cut diamonds, the dia

A VINTAGE AQUAMARINE AND DIAMOND BOW BROOCH, CIRCA 1950 in platinum and 18ct white gold, set with two tapered fancy cut aquamarines, accented by rose cut, single cut and round brilliant cut diamonds,

57 full cut old European cut diamonds, 22 single cut old European diamonds, graduating in size 2.0 - 1.2mm, tested platinum, straight bar pin with "J" clasp, 2-1/4 x 5/8 in, 10.1 grams Provenance: Pro

Gold, Platinum, Ruby and Diamond Brooch 14 round rubies ap. 1.40 cts., square and rectangular-cut rubies, old-mine and single cut diamonds ap. 1.85 cts., small rose-cut diamonds, several rectangular-c

Platinum diamond and jet brooch. The former watch case features an oval piece of jet in place of the watch face, with a rose cut diamond at the center. The surrounding pin is decorated with intricate

A FRENCH ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in platinum, designed as an arrow, set with polished onyx and rose cut diamonds, French maker's mark, French assay marks, 4.3cm, 2.2g.

Brooch features rose cut diamonds and emeralds. Measures 67mm x 51mm. Tested 18K, silver. Weighs 34.3 grams. Gemstones have not been graded for color and clarity ,and tested for clarity and color enha

NO RESERVE - AN ANTIQUE BLACK OPAL AND DIAMOND BAR BROOCH, CIRCA 1910, Made in yellow gold and platinum, Oval cabochon black opal, weighing approximately 1.61 carats, Single cut and rose cut diamonds,