Antique French Art Deco Sapphire & Diamond 18K White Gold Ring | Circa 1920 | Hallmarked | Size 7

An extraordinary piece of French jewelry history, this authentic Art Deco statement ring dates to Circa 1920 and displays exquisite architectural scrollwork crafted in solid 18K white gold.
In alignment with historical French goldsmithing standards of the period, this piece features distinct exterior band hallmarks: "SP" for the master jeweler's mark, "750" designating solid 18K gold purity, and the model inventory stamp "988".
The dramatic, openwork ribbon face is set with three vivid natural blue sapphires—an oval, a marquise, and a round cut—totalling ~0.57 CTW. Woven throughout the sweeping white gold structure are 25 antique Old Mine cut diamonds (~0.88 CTW), delivering exceptional fire, character, and vintage brilliance.
Weighing a heavy 7.2 grams of solid 18K white gold in a US size 7, this museum-grade antique ring offers commanding finger coverage and is a premier addition for serious collectors of hallmarked French Art Deco jewelry.
Quick Specs:
Era / Origin: Authentic French Art Deco (Circa 1920)
Hallmarks: Exterior Band Stamps — "SP" (Maker), "750" (18K), "988" (Model #)
Metal Purity: Solid 18K White Gold
Natural Blue Sapphires: 3 Natural Sapphires (~0.57 CTW)
Natural Diamonds: 25 Old Mine Cut Diamonds (~0.88 CTW)
Total Gemstone Weight: ~1.45 CTW Combined
Ring Weight: 7.2 Grams (Heavy Gold Presence)
Ring Size: 7 US
Condition: Excellent Fine Antique Condition