COI Black Tungsten Carbide Ring. 

Specifications:
Category:	Ring
Width:	8.0mm (0.31 inches)
Thickness:	2.0mm (0.07 inches)
Material:	Tungsten Carbide, Cobalt- Free
Finish:	High Polished & Satin Finished

Diamond Color:	H to I
Diamond Clarity:	SI1 - SI2
Diamond Weight:	0.12ct

Availability:

Tailor Made. Usually ships in 5 - 7 business days. 14-Day Returns.  FREE Worldwide Shipping.  100% Quality Guarantee. Engraving Service: We can provide lazer engraving service for up to 12 letters on the ring. Indicate the inscription of your choice during check-out.   *Further Note: All coi Tungsten Carbide Jewelry are 100% custom-made and hand-made and hence, sometimes it may take a relatively longer processing period for finishing some specific models, eg, gold plating, inlays or diamonds styles.