Mid-Century Diamond Blue Sapphire Ballerina Cocktail Ring Platinum 1950s/1960s

A Mid-Century Aquamarine and Diamond Cocktail Cluster Ring in White Gold, Portugal, c. 1952-1975. Featuring an intense blue oval-cut aquamarine claw-set to the centre, encircled by 20 round brilliant-cut and single-cut diamonds, to an architectural gallery decorated with high-relief scrolled motifs, flowing through to a solid D-shape white gold shank. Aquamarine approximately 19.2ct (18.1 x 16.16 x 12.05 mm). Diamonds approximately 0.60ct in total, G/H color, VS clarity. Oporto mark for 800/1000 white gold (used 1938-1984); Oporto mark for jewelry (used 1938-1984); maker’s mark for Manuel da Silva...

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...

A vintage Old European brilliant-cut diamond spiraled bombe cocktail ring in platinum, Portuguese, 1950s. This mid-20th century ring of a bombe design features an Old European brilli...

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