Men's .87 TCW Square-Cut and Round Cubic Zirconia 18k Yellow Gold Over Sterling Silver Octagon Ring FREE SHIPPING on orders of $30.00 or more - Top Rated Seller - Trusted Since 1952 - 90 Day Guarantee - Easy Returns - Free PalmBeach Jewelry Gift Box 14k Yellow Gold Over Sterling Silver - Quality Stamp (.925) Cubic Zirconia is the premier diamond simulant; CZ is both affordable and brilliantly flawless. Ring Style: Classic - Theme: Nuggets and Bling He'll retain his masculinity without compromising his sense of style with this cubic zirconia octagon-shaped ring. It's comprised of a square-shaped cubic zirconia main stone encased in a golden outline with two more rows of round cubic zirconia accent stones. .87 carats T.W. 18k gold over sterling silver. Sizes 8-13. (All carat weights are approximate and may vary slightly from those listed.)