This 18mm glass round cabochon, with its distinctive blue opal color, slightly domed top and flat bottom, is perfect for seed bead projects or set bezels. The unique combination of opal and brilliant blue in these beads give them a slightly cracked look, making them perfect for any design with a vintage feel. Their round shape makes these cabochons perfect for pre-formed bezels or creating your own unique jewelry. Originally used to embellish sword handles, thrones, and crowns, cabochons are now perfect for sprucing up everyday household objects. They'll make you feel like royalty in your own home. Simply use some of our E-6000 adhesive and get busy decorating. You'll be amazed at the beautiful results you'll achieve with our gorgeous selection of cabochons.