Skip crescent opal cluster top - threaded images slider SKU: Crescent Opal Cluster Top - Threaded Sign-up to see price These curved clusters feature a 4mm opal at the center with a 3mm and 2mm opal on each side, creating a elegant crescent shape. Product Details: Material: Titanium 6Al-4V-Eli ASTM F-136 Gauge: 18g-16g or 14g-12g Dimensions: 13mm x 5mm (L x W) Available Colors: Dark Lapis, White Opal 13 anodized color options