Diamonds are one of the most desirable gemstones and can be valued both on their rarity and quality. They are hard gemstones which have not only been used in jewelry, but also precision tooling.
Below are some examples and price guides of vintage and antique diamond jewelry, including a Georges Fouquet Art Nouveau diamond wing brooch and a 1920’s love bird brooch.
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TWO ART DECO WHITE GOLD AND DIAMOND RINGS
Each set with old mine and single-cut diamonds, approximate total diamond weight 1.00 carats, weight 4.0 dwt, size 7 1/2, 8 3/4
Sold for US$1,402.50 inc. premium at Bonham’s in 2023
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GEORGES FOUQUET ART NOUVEAU BAROQUE PEARL, DIAMOND AND ENAMEL ‘WINGS’ BROOCH
Baroque pearl, old and rose-cut diamonds, green plique-à-jour enamel, silver-topped gold, circa 1907 – 1908, unsigned, accompanied by a brooch fitting of later addition with maker’s mark (Péry & Fils)
Françoise Cailles, 2011: Certificate of Authenticity
Size/Dimensions: 12.5 x 8.5 cm (4 7/8 x 3 1/4 in), wings adjustable
Gross Weight: 34.8 grams
Sold for USD 151,200 at Christie’s in 2022
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Antique Rose Gold, Silver, Pearl and Diamond Bangle Bracelet
One button pearl ap. 7.0 mm., 18 old-mine cut diamonds ap. 3.60 cts., ap. 11.6 dwts. Inner cir. 6 3/4 inches.
Sold for $2,520 (includes buyer’s premium) at Doyle in 2023