Tiffany Co Tiffany & Co. is likely the most famous and well-known expensive jewelry brand. Founded by Charles Lewis Tiffany, the brand's many storefronts are recognizable by their blue branding.

Think of them as the “Walmart" of jewelry companies. They offer mass-produced jewelry that is quickly (and not skillfully) made. They have to make thousands of identical rings to supply all their stores. And to cut costs they manufacture in China and India.

Local jewelry shops often handpick the products they offer, from gemstones, diamonds, and metals, to finished jewelry pieces. They're usually GIA experts - they might even be the only GIA expert for miles - and they use their knowledge and experience to select their shop's inventory.