Concept derives from Scarf woodworking joint, which represents something to build and to connect together. There are 2 silver rings to interlock together, each one of couple can choose his and her prefer metal, style and finish. Then, these 2 rings with their personalized metal color will become 2 set of the same ring for their unique couple rings. If you have several rings, they can be swapped and played with various colors and finishes. [R0039] - 2# Black Diamonds, total carat weight 0.04 - Diamond quality: Natural Black Diamond, AAA quality - Ring width: 6mm, height 1.3mm - Metal: Sterling Silver 925 with rhodium or gold plated - Metal finish: matt hairline finish and gloss finish.