We found these wonderful 20mm, single strand, gold tone bezel clasps in some old vintage designer stock. Much to our delight, we found that one of our beautiful 16mm vintage Swarovski crystal rivolis, Crystal-Article 1122, fit these vintage gold tone bezel clasps perfectly! These vintage Swarovski crystal rivolis came out of their original packaging marked D.S & Co. Art. 1122-16mm Gold Foiled Crystal. It's always exciting for us when we are able to incorporate two of our vintage items in to one magnificent piece. Check out the pretty textured back on these vintage gold tone bezel clasps!