Setting: 16 x 25 mm (0.6 x 1.0 in). Halo setting. Handcrafted in solid 9 carat yellow gold (3.20 gr). Natural marquise cut Siberian amethyst (1.65 ctw) and diamond (0.15 ctw). The perfect Engagement Ring. February Birthstone gift. 6th Wedding Anniversary gemstone. Lifetime Warranty, Appraisal and Gift Box included.