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All auctions / Jewelry & Gems / Platinum, sapphire, and diamond ring


Art Deco platinum ring set in the center with a large oval sapphire weighing 7.37 carats (11.21 x 9.64 x 7.30 mm) Unheated Intense Blue Ceylon sapphire surrounded by an openwork geometric design set with brilliant-cut diamonds. The mounting features a geometric design characteristic of the Art Deco aesthetic. French craftsmanship from the Art Deco period, circa 1925. Bears the dog-head Hallmark for Platinum. Note the inclusion of a Bellerophon Certificate for the center stone. Width of the central motif: 1.6 cm
Estimate:$18,413.73
To the auctionView all items fromCastafioreorJewelry & Gems
Estimate:
$18,413.73
ESTRID ERICSON. TILLSKRIVEN. Collier, förgylld metall, troligen för
10/12/2026
$180.64
Est: $150.01
ÖRHÄNGEN, ETT PAR, 18K VITGULD MED SVARTA OPALER.
10/12/2026
$190.67
Est: $200.01
HALSKEDJA OCH HÄNGE MED PÄRLA SAMT SMÅ DIAMANTER, 18K GULD, ALTON
10/12/2026
$270.96
Est: $300.02
RING, MED SPEGELMONOGRAM, 9K GULD, VIKT CA 1,8 GRAM.
10/12/2026
$150.53
Est: $80

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