Sterling Silver 2.5-Carat Blue Topaz Square Ring SIZE 9Material: Genuine Sterling Silver (925 silver, 92. 5% silver content) Stone(s): Genuine blue topaz, approximately 2. 5 carats Ring Face Dimension: 0. 5 x 0. 5 x 0. 25 inches Weight: 6. 7 grams Ring Size (US): 9 Stamp Mark: 925 Serial Number: r27716 Derived from "tapaz," the Sanskrit word for fire, topaz is one of the most brilliant cut gemstones in existence. Topaz comes in a variety of colors from yellow to blue, and deeper blues and pinks are often