Koa Eternity Ring - Curved Black Cobalt
Koa Eternity Ring - Curved Black Cobalt

Koa Eternity Ring - Curved Black Cobalt


Regular price $325.00 Sale


Our Koa Eternity Ring is a symbol of elegance and commitment. This ring is made from genuine Martin & MacArthur Koa and the rare Earth metal Cobalt, combined with Chrome to form a lustrous alloy.  Cobalt Chrome is a harder metal than precious metals such as gold and silver. Consequently, a Cobalt Chrome ring will resist scratching and wear more than precious metal equivalents. In addition to being a harder metal, Cobalt Chrome is also extremely strong and malleable. Cobalt Chrome rings are shatterproof.

The Cobalt Chrome is electroplated black using a compound of Nitrogen, Carbon, and Titanium in extremely high thickness standards of 0.9 um/min.  Care should be taken not to scratch the surface of the ring against anything abrasive, which could mar the black finish.

Our eternity rings have a one year warranty from any manufacturer's defects. This warranty does not cover damage due to everyday wear and tear or dropping the ring.



  • Curved Design 


All shipments will take a minimum of 4 business days to be received because we are shipping from Hawaii. Shipper does not guarantee 2 day delivery from Hawaii. We will send an email notification when your order is shipped.

International Buyers – Please Note:

Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.

Please check with your country's customs office to determine what these additional costs will be prior to buying.