Ring with 3 quartz crystals in antique fac. cushion cut and 1 brilliant-cut diamond approx. 0.15 ct,

Ring with antique faceted cushion-cut smokey quartz, citrine and white onyx around 1 brilliant-cut diamond ca. 0.15 ct, ca. STW (J)/I1, 18K yellow gold, 15.3 g, ring size 55, 20th/21st century, signs of wear.