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Top grade crystals are glass crystals cut in a process in which Daniel Swarovski (1862-1956), the son of a glass faceter, developed in 1892. First, oldest and most expensive one is Authentic Natural Diamond.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.