A Vintage Plum Sapphire and Diamond Platinum Engagement Ring c. 1915 The milgran platinum ring features a 5.41 ct natural sapphire with an unusually bluish-purple color. […]

A Vintage Sapphire and Diamond Engagement Ring Russian, circa 1910 The ring is handcrafted in 14K rose gold. The center stone is a natural midnight blue […]

1920s The ring is centered with a cabochon cut midnight blue natural sapphire (14.4 x 8.7 x 5 mm, approximately 5.58 ct) in a milgrain platinum […]

Belgium, 1940s The ring is handcrafted in 18K white gold. It is centered with a cabochon cut blue sapphire encircled by two rows of diamonds (about […]

Russian, made between 1908 and 1917 A vintage rose gold ring is centered with an oval cabochon cut blue sapphire encircled by twelve rose cut diamonds. […]