0.86ct Mine Cut Diamond Solitaire - 18K Two Tone

18 Karat two-tone estate ring, size 7, featuring a 0.86 carat cushion-shaped mine cut Diamond (J color, SI1 clarity) with halo setting. GIA report included for authentication and peace of mind. Hallmarked with W.E.G (MM) Crown (England) 18kt, Anker Birmingham assay mark, and N date letter (1940–1950). A refined vintage piece with documented provenance and timeless appeal.