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Art Nouveau Gold, Diamond and Plique-a-Jour Enamel Pendant-Brooch, Masriera. The rose-cut diamond-set circle centering a gold fairy adorned with a gown decorated with green plique-a-jour enamel, dotted with small rose-cut diamonds, and pink plique-a-jour enamel accented with gold and bands of rose-cut diamonds, grasping one rose-cut diamond, her spread wings of plique-a-jour enamel, edged with rose-cut diamonds, signed Masriera, HS for Masriera Hermanos, circa 1900. Via Doyle New York.

Art Deco emerald and diamond earrings by Cartier, circa 1934. These earrings are topped by one emerald-cut diamond weighing 4.78 carats and one cut-cornered rectangular step-cut diamond weighing 4.77 carats. The diamond surmounts suspend an articulated chevron motif set with numerous baguette, square-cut and marquise-shaped diamonds weighing a total of approximately 11.25 carats. These suspend two emerald drops, together weighing approximately 50.30 carats. Via Diamonds in the Library.

Platinum, opal, sapphire, and diamond pendant, bezel-set with an opal measuring approx. 18.00 x 15.00 x 4.50 mm, framed by old European- and single-cut diamonds, fancy-cut sapphire accents, millegrain details.

eBayfrom eBay

14k diamond black opal vintage ring box fine 2.45 miner antique huge 6.05 carats

ANTIQUE VICTORIAN RING WITH 2.45 CARATS OLD MINERS CUT DIAMONDS! 14K HUGE 6.05 CARATS DIAMOND & SOLID SEMI-BLACK OPAL RING & BOX

SAPPHIRE AND DIAMOND BRACELET, BLACK, STARR & FROST, CIRCA 1920. The articulated band decorated in a geometric design with 5 emerald-cut sapphires weighing approximately 13.00 carats and bands of 57 calibré-cut sapphires, completed by 180 old European-cut and single-cut diamonds weighing approximately 9.00 carats and 30 baguette diamonds weighing approximately 4.00 carats, mounted in platinum, length 7 inches, signed B.S. & F.

Etsyfrom Etsy

Brilliant 10k Gold Opal Ring - Bypass White Marquise Opal and Diamonds and 10 Karat Yellow Gold Ring - Opal Engagement Ring - Size 6 Ring

Brilliant 10k Gold Opal Ring - Bypass White Marquise Opal and Diamonds set into a 10 Karat Yellow Gold Ring - Opal Engagement Ring Size 6

PLATINUM, SAPPHIRE AND DIAMOND BRACELET, CARTIER. Set with 20 square-cut sapphires, accented by old European and single-cut diamonds weighing approximately 6.60 carats, length 7 inches, signed Cartier, numbered 4392; circa 1925.

SAPPHIRE, DIAMOND AND CULTURED PEARL BROOCH, CIRCA 1910 WITH LATER MODIFICATION. The brooch centring on a baroque cultured pearl of iridescent aubergine tint, encircled within lines of millegrain-set circular- and single-cut diamonds, and calibré-cut sapphires, to a similarly set pendant of ribbon design

Turquoise & Diamond Diadem c1800-1850. Gold, turquoise, cut and uncut diamonds and silk; cast. Diam. 13.5 cm Origin: Western Europe. | The Hermitage Museum

1stdibs.comfrom 1stdibs.com

A Delicate Diamond and Moonstone Platinum Pendant

A Delicate Diamond and Moonstone Platinum Pendant. A delicate platinum pendant in the shape of a flower set with three heart shaped cabochon cut moonstone petals and brilliant cut diamonds at the end of the petals and in between them, under the flower are five drops decorated with pearls and diamonds, England, circa 1910.

Antique Deco emerald and diamond ring in elegant domed design The front panel is richly set by old cut diamonds in adorable pattern of foliate design surrounding the centre large cabochon cut emerald set into rub over frame Carved details edging the borders All crafted of solid 18 Kt gold in white and yellow colours - marked