Edwardian platinum (tested) diamond brooch, set with

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

Edwardian brooch from beginning of 20th century designed as a half crescent, made of platinum (acid tested - the pin on the reverse is made of 18K Yellow Gold) and set with many lovely Old European Cu

Antique handmade, ribbon form brooch set with Old Mine cut and Old European cut round brilliant diamonds. Bezel set in the center is one elongated pear shape diamond, measuring .66ct. Clarity SI1, Col

Edwardian Platinum and Diamond Brooch/Pendant ca. 1910, the circular platinum brooch with an openwork lacy pattern set with a central old European-cut diamond, surrounded by smaller European-cut diamo

Elegant antique Edwardian ladies brooch pin. Filigree platinum with collet-set diamonds. Center set with a Tsavorite green garnet of approximately 3.5mm. Secure ban back. Unmarked, x-ray verified Plat

set with 7 off-round European cut diamonds approx. 1.20 carats (largest stone 30pts), diamonds set in tested platinum, yellow gold band tests 14K, size 6, 3.2gms. (a couple minor inclusions observed w

Vintage Platinum Diamond Brooch, Spectrometer tested platinum, with estimated approx. 1.35 carats diamonds both prong set and bead set also three baguette cut diamonds, pin mechanism works properly, 1

JEWELRY: Edwardian platinum diamond bar pin, tested platinum with 14K white gold pin stem, filigree design set with seven old European cut diamonds, light wear consistent with age and use, approximate

Retro brooch (from 1930s/40s) designed as a floral bouquet made of platinum (acid tested) and set with Single Cut diamonds weighing a total of approximately 3.5 Carats. The pin on its reverse is made

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

JEWELRY: Platinum diamond brooch by Frank Walter Lawrence, tested platinum mounting with 14K yellow gold pin stem, rectangular hand pierced design, center set with one marquise cut diamond, approximat

BROOCH - Edwardian Platinum Bar Pin Form Brooch set with (14) rectangular faceted sapphires and (3) diamonds, stamped "JEC COA 6712", 2 1/2" long, 1/8" wide, 5.0 dwt tw; fine condition.

Platinum brooch features approx. 1.20ctw in diamonds set in platinum. Brooch measures 31mm in diameter. Tested platinum. Brooch weighs 5.3 grams. Gemstones have not been graded for color and clarity ,

Two Edwardian rings, gold and platinum set with diamond, and a cased set of graduated pearl set bar brooches, by Mappin and Webb

* An Edwardian Platinum Topped Yellow Gold, Pearl and Diamond Pendant/Brooch, containing one pearl (origin not tested) measuring approximately 8.85 mm in diameter, seven old European cut diamonds weig

Art Deco dreicer & Co platinum bow brooch set with approx. 0.66ctw in rose cut diamonds and onyx. Some onyx stones are chipped. Brooch is 53mm x 12mm. Marked: Dreicer & Co, tested Platinum. Weight - 7

Vintage fancy and large floral and bow brooch. 139 high quality diamonds with a approx. weight of 9.60ct set in a hand fabricated platinum setting. Unmarked, tested for platinum. approx 1.5" X 2" with

DESCRIPTION: Tested 90% platinum Art Deco bow brooch set with forty-nine round full and single cut diamonds of .02 to .06 carat each. Clarity SI to I1, color I-J. Approximately 1.50 ctw. Also set with

Necklace is 19 1/" long, pendant - 38mm in diameter. Set with old mine cut diamonds - approx. 2.00ctw. Tested plat. Weight - 14.8 grams.Gemstones have not been graded for color and clarity ,and t

Whimsical small brooch featuring 1.5ct. t.w. diamonds set in platinum and spelling out "LOVE". Marked "7813" and tested as platinum. Approx. 1.25" wide.

Platinum brooch is decorated with diamonds, red stones and pearl. Brooch measures 34mm x 27mm . One diamond and one red stone are missing. Tested platinum. Weight is 5.4 grams.Gemstones have not been

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

Description: Delicate and elegant ring created in the 1960's as an Edwardian Revival piece. The top is made of platinum (tested) and set with old mine cut diamonds, the bottom and the shank are made o

AN EDWARDIAN DIAMOND BROOCH Designed as a crown set with old European and old mine-cut diamonds, approximate total weight 2.05 carats, platinum-topped gold mount, weight 6.6 dwt, length 1 5/8 in. Fo