I made a ring by combining silver 925 and blue topaz. A clean marquis cut blue topaz gives a clean, cool impression. ★ Material. . .. Blue Topaz, 925 Silver ★ Dimensions: Blue topaz is 5 mm wide x 10 mm high, Ave 1.10 ct, Arm width of the ring is 2.4mm to 2.9mm ★ The size is No. 10. (Resize is possible. Please specify when ordering.) ● If you need to adjust the size, it will take about 1 to 2 weeks.