Men's Barrel Cut White Topaz and Diamond Ring This men's white topaz and diamond ring is crafted of 10K solid yellow gold for a truly distinctive look. A 8 X 6MM genuine barrel cut white topaz gemstone is accented by 2 white round diamonds. This ring weighs a comfortable 4.3 grams. White topaz is the birthstone for April. This men's white topaz and diamond barrel cut ring qualifies for free custom ring sizing. Size 11 is standard. When you order a custom size, please allow an additional 7-10 business days processing time. Available in size 8 through 14 (whole and half sizes).