threadless: "Prium" Opal Cluster End family 5/16" - 3/8" has a

5/16" - 3/8" has a 3/16" captive bead

Because sometimes you need a little more opal with your opal

The gold bezel wraps all the way around the gem

Mini: 8mm x 6mm threaded end with (1) 4mm x 2

A left curve would be the opposite

threadless: "Prium" Opal Cluster End family 5/16" - 3/8" has aThreadless Titanium End Description & Features: This opal cabochon cluster sparks the attention from across the room. Available in multiple sizes: Standard: 11. 5mm threadless end with (1) 3mm Round Opal Cabochon surrounded by (2) 2. 5mm Round Opal Cabochons & (2) 2mm Round Opal Cabochons in Prong's Mini: 9 . 5mm threadless end with (1) 2. 5mm Round Opal Cabochon surrounded by (2) 2mm Round Opal Cabochons & (2) 1. 5mm Round Opal Cabochons in Prong's