18K (750) gold ring, set with an oval ruby surrounded by marquise diamonds, shouldered by drop-cut diamonds. Finger size: 53. Ruby dimensions: approx. 15.8 x 14.3 x 4.3 mm. Gross weight: 10.2 g (flush frosting) The ruby is accompanied by a GEM-Paris pre-report (2025) attesting: origin Tanzania, heated with moderate residues.