Mid-Century Diamond Swirl Double-Clip Brooch Convertible Platinum 1950s 1960s

A pair of Mid-Century ruby and diamond trefoil cluster clip-on earrings in platinum, Portugal, 1950s/1960s. Each earring is designed as stylized trefoil with a round brilliant-cut di...

Mid-Century diamond and dark blue sapphire cocktail ring in platinum, Europe, 1950s/1960s. This ring features an elongated cushion-shape dark blue sapphire claw-set to the center and...

Ben Rosenfeld Mid-Century Duck Brooch in Diamond, Ruby and Gold, London, 1961. A delightful example of British Mid-Century whimsy, this charming brooch by Ben Rosenfeld is modelled a...

Mid-Century Royal Blue oval sapphire and round brilliant-cut diamond cluster clip-on earrings in platinum and 18kt white gold, French import marks, 1950s/1960s. Each of the earrings features an oval sapphire of a royal blue color in an open-back claw setting, surrounded by two tiered rows of similarly-set round brilliant-cut diamonds of an incredible sparkle. These jewels are secured to reverse with a post and omega clip fitting. Sapphires: 2 stones; 5.50 carats (approximately 12.83 x 9.23 x 5.64 mm) and 5.33 carats (approximately 12.59 x 8.87 x 5.79 mm); roval mixed-cut; royal blue color (assessed). Diamonds: estimated 11 carats in total; F-H color (assessed); VVS-VS clarity (assessed). French control mark “mascaron” (used 1926-present) for imported platinum; French hallmark “owl” (used 1893-1984) for imported gold. Dimensions: 2.5 x 2.0 cm. Gross weight: 25.8g. This item is in good condition, with marks and scratches consistent with general age and wear. Antique, period and vintage pieces, both signed and unsigned, are being offered as worn. Unless otherwise stated, all weights and quality factors have been graded as mounting permitted and using classic gemology and standard gemological equipment and might slightly differ from the assessments provided by other gemologists. Assessments related to period of manufacture or geographic origin of gemstones are expert opinions and may differ from the assessments provided by other professionals. Colors in the pictures/videos might slightly differ from the colors in real life. When certificated stones are being offered, the certificate or report will be mentioned. For additional information or clarification, please get in touch and our in-house team of expert GIA Graduate Gemologists and Registered Appraisers/Valuers will be happy to help. Upon request, every item sold by Espadim 1985...

Mid-Century Diamond Double Clip Brooch Pair in Platinum. A pair of double clip pin brooches dating from the 1950s with round brilliant and step...

This 1960's vintage Boucheron piece of jewelry is a dual clip lapel brooch crafted in platinum and comprises masterfully designed, naturalistically inspired and diamond swathed scrol...

Although made in the late 20th century, circa 1990s, this Vintage Diamond Blossom Convertible Double Clip Brooch is expertly hand fabricated with the same rigorous attention paid to the details of its Jazz Age counterparts. The piece appears to be a spectacularly bejeweled brooch, but it is actually referencing an Art Deco-era Double Clip Convertible Brooch. Two detachable halves are symmetrical like a playing card—a detail that creates lyrical movement as the eye traces a figure-eight around the design. The 3 x 2 inch (7.62 x 5.08 cm) double floral brooch is crafted in 18K white and yellow gold and set with round diamonds weighing approximately 18.00 carats total of G-H colors and VVS to VS clarity. The floral centers are comprised of pleasing grids of round canary yellow diamonds weighing approximately 11.50 carats total, ranging from Fancy Vivid...

Of an impressive design this diamond brooch iby David Webb s about 3 inches long and converts into two models: with and without the gold backdrop. Crafted in 18K Yellow Gold and Plat...