Eclipso-Obsidian-8mm Details Eclipso-Obsidian-8mm Unavailable $120.00 Default Title - $120.00 Select options 8mm diameter (approx 5/16”) with 14g hinge closure. Obsidian PVD fused black, from Tether Jewelry Read more 8mm diameter (approx 5/16”) with 14g hinge closure. Obsidian PVD fused black, from Tether Jewelry Share