Create new and personalized jewelry with our customizable 18K Gold PVD stainless steel blank birthstone charms! A fun way to add on a pop of color or a touch of personalization to jewelry, these non-tarnish gold charms feature a blank surface area for stamping or laser engraving. A perfect charm for charm bars and custom gifts—ideal for Mother's Day, Easter, birthdays, spring events, or everyday "just because" gifting. • Premium 18K Gold PVD Stainless Steel • Perfect for hand-stamping or laser engraving • Waterproof, non-tarnish, hypoallergenic • AAA Austrian Cubic Zirconia stones available in each of the 12 birthstones • A must-have for personalizing chain necklaces, bracelets, and keychains Diameter: 12mm (1/2") Thickness:1.3mm We use the process of PVD Coating our 18K Gold jewelry over 316L surgical grade stainless steel for a non-tarnish, hypoallergenic, finish that will hold up best to everyday wear and will never turn your customer's skin green. Same day shipping from FL.