KMR155d Concrete & Diamond Ring


KMR155d Concrete & Diamond Ring



Finally a concrete ring with a diamond! This .15ct, or 2.5mm diamond, is set into the concrete band making a unique engagement ring or wedding band. Great on its own or pair it with kmr170 for a matching set. Also available in platinum.

Prices shown in USD.


Materials Concrete, Stainless Steel and .15ct diamond
Size 6mm x 2.5mm
Lead Time 3 days

Additional information


We use a new generation of concrete for our jewelry called ultra high performance concrete which has the compressive strength of 150 Mpa. Over 20 times stronger than traditional concrete. We offer a lifetime warranty on these rings, if the concrete were to chip or break at anytime, we will replace it.

Sizing Information

If you are unsure of your size, please visit a local jeweler to have your finger sized accurately. Be sure they use a wider sizer, close to the size of the ring as wider rings will fit tighter. Do not use sizing charts as they are always inaccurate.