Louis Heissler Art Deco Signet Ring with Unheated Sapphire and Diamonds on Platinum pendant oreille citrine Condition: slight wear and micro-scratches

Condition: slight wear and micro-scratches on the gold and platinum parts

Condition: slight micro scratches and oxidation on the gold parts

very strong luminescence

Although its name comes from the Latin rubeus

Diamond color estimated at H to J

Louis Heissler Art Deco Signet Ring with Unheated Sapphire and Diamonds on Platinum pendant oreille citrine Condition: slight wear and micro-scratchesPlatinum signet ring (hallmark: dog), set in the center with an oval sapphire weighing approximately 0. 90 carats, surrounded by old cut round diamonds with an estimated total weight of approximately 0. 35 carats (estimated color I, estimated clarity SI). Sapphire accompanied by its Carat Gem Lab certificate, specifying natural Siam sapphire without thermal modifications. French piece, circa 1925, Art Deco, by jeweler Louis Heissler (masters