Amazon Essentials 1/10 CT TW Lab-Grown Diamond & Gemstone Love Knot Pendant Necklace - Platinum Over Sterling Silver Box Chain 18"+2" Extender - Elegant Jewelry Gift for Women, Anniversary, Valentine's Day, Wedding & Special Occasions

This is high quality platinum and a very sparkly and deep toned ruby. One of the new "grown" gems in the lab, the average person cannot spot any difference. The ruby is a bit smaller than I expected, but it does sit nicely on the chain and is definitely noticeable. Compliments already. We are very happy with this formal addition to the jewelry box. Definitely a nice birthday gift for those born in the Ruby month!