Diamond Circle Brooch in Platinum

A Ruby & Diamond Circle Brooch. Platinum mounting contains 36 prong set round brilliant diamonds and 36 round rubies. The total diamond weight is approximately 1.80 carats. The diamonds are approximat

A vintage circle brooch containing twenty two old European cut diamonds weighing approximately 2.2 carats total weight. Finished with milgrain details and safety clasp to verso. Measures approximatel

TIFFANY & CO., A DIAMOND CIRCLE BROOCH, 1940S in platinum, designed as an open circle set throughout with old European cut diamonds, the diamonds all totalling 4.3-4.5 carats, signed Tiffany & Co., no

JEWELRY: Art Deco Diamond & Sapphire Circle Brooch, tested platinum Art Deco open circle brooch with milgrain, diamonds, and natural sapphires. Containing 28 bead- set transitional cut diamonds with a

RBC, marquise and baguette cut diamonds approximately 8 cts TW. Approximately GH, VS. 12.7 dwts.

The knife-edge circle with transitional-cut diamonds, approx. 3.40 cts. TW. 1 1/4". 4.3 dwt.

Platinum & diamond circle brooch, c1915, 3.25 dwts

Synthetic sapphires. OEC diamonds approximately .45 cts. 3.3 dwts.

Carved Rock Crystal, Platinum and Diamond Circle Brooch Circular beveled chipped rock crystal dia. ap. 35 mm., 6 baguette and 62 single-cut diamonds ap. .85 ct. C

A vintage 1.25" circle brooch in platinum containing 34 VS2-SI1, G-H color Old European Cut diamonds weighing approximately 3.50 carats total weight. 5.57 Dwt.

This is an elegant vintage circle brooch pin rendered in fine platinum. The Art Deco pin is studded with 3.5tcw Old European and Old Mine cut diamonds of VS clarity and GH color. It is 1 3/8" diameter

Platinum circle brooch with bow, set throughout with single and old mine-cut diamonds totalilng approximately 2.00 cts., graded G-H color and SI clarity, 7.5 gms gross, est: $600/800

Art Deco Platinum and Diamond Circle Broochthe circle brooch designed in a wreath motif and bead set with full cut round, transitional, and single cut round diamonds weighing approximately .65 total c

Art Deco Diamond, Platinum Circle Bow Brooch. Featuring thirty-nine old European-cut diamonds weighing a total of approximately 3.25 cttw., set in a platinum circle bow brooch mounting measuring appro

Platinum open circle brooch, set with baguette and round diamonds - approx. 2.40ctw. Brooch is 30mm in diameter. Marked: Maker's Mark Irid. Plat. Weight - 8.5 grams.

Metal : Platinum/ Gold stem Designer : Not Signed Gemstone : Diamonds approx. 2.00ctw Measurements : Brooch is 30mm in diameter Marked: : Tested plat/Gold Weight: 5.6 grams

JEWELRY: Edwardian Pearl & Diamond Circle Brooch, tested 18K yellow gold and platinum Edwardian circle brooch with diamond bow. Consisting of 22 pearls set into the circle portion of the brooch, measu

Cultured Pearl, Diamond, Platinum-Topped, 14k Yellow Gold Jewelry Suite. Including one freshwater pearl, diamond, platinum-topped circle brooch measuring approximately 27 mm together with a cultured p

Ladies estate platinum,18kt gold and diamond brooch, two interlocked circles set with approx 2.00 cts total weight diamonds of varied size, 1.5"l, 1"w, 6.7 grams (inclusive of diamonds) Start Price: $

Title: Antique Tiffany & Co. Paris Platinum 18K Gold Diamond Pearl Circle Brooch Circa 1900s 3ctw Description:Antique Tiffany & Co. Paris Platinum 18K Gold Diamond Pearl Circle Brooch Circa 1900s 3ct

Summary of Key Characteristics • Metal: platinum • Gemstone(s): old European cut diamonds approx. 3.90 carats total, most G-H/VS-SI • Measurements: 1-1/4 x 1-1/4 inches &#x2022

Platinum Diamond Circle with Bow Brooch. Approx 3.5 tcw. 1" 4.7 DWT- 7.4 G

PLATINUM, 14KT WHITE GOLD, EMERALD AND DIAMOND CIRCLE BROOCH Four step-cut emeralds alternating with four brilliant-cut diamonds. Diameter 1.25”. Approx. 4.00 total dwt.

METAL: platinum, 14k gold. GEMSTONES: diamonds-approx. 0.90ctw. MEASUREMENTS: brooch is 29mm in diameter. MARKED: 14K, tested platinum. WEIGHT: 4.1 grams.Gemstones have not been graded for color and c