PalmBeach Jewelry Men's 1/4 TCW Round Cubic Zirconia Platinum Over Sterling Silver Classic 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 Platinum Over Sterling Silver - Quality Stamp (.925) Cubic Zirconia is the premier diamond simulant; CZ is both affordable and brilliantly flawless. Ring Style: Classic Give a little shine to that special man in your life. Our cubic zirconia in platinum over sterling silver has the look of the real thing at a fraction of the cost. 1/4 carat. Sizes 8 -13. (All carat weights are approximate and may vary slightly from those listed.)