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All auctions / Jewelry & Gems / An Art Deco Diamond Pin & Pendant in Platinum


1) c. 1920s platinum open square pin with Old European diamonds weighing 1.00 ctw bead set, bow in one corner and three corners canted, French cut sapphires channel set in corners, milgrain accent, 1 3/8 in. W, and 2) c. 1920s platinum pendant of oval form featuring Old Mine and Old European diamonds weighing 1.00 ctw bead set, bisected by two tassels with French cut black onyx channel set, milgrain accent, 1 7/8 in. L, 11.5 grams tw
Estimate:$500
To the auctionView all items fromAlex Cooper AuctioneersorJewelry & Gems
Estimate:
$500
An Art Deco platinum, sapphire synthetic and cultured pearl ...
09/28/2026

$211.65
Est: $133.95


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A collection of sundry jewellery including a silver charm br...
09/28/2026

$2,645.67
Est: $401.85
Art Deco 18K 2.76 CTW Bar Pin with Antique Box
09/28/2026
$3,650
Est: $3,000