This engagement ring is made in solid sterling silver plated in platinum to help protect against tarnish. The center stone is a 1 carat moissanite and features stunning heart shaped prongs. The rings are certified by GRA. **Rings not available for customization*** no changes for sizes or color We have a 30 Days no questions asked return policy which makes your purchase risk-free. At the end of the day, we want you to be 100% happy. Feel confident when shopping with TwoBirch!! Additional Information Metal Type and Color - Sterling Silver ***center stone minimum specifications: certified moissanite, d vvs1** sustainably created moissanite engagement ring.