This is a cushion cut 2.5ct Lab created black diamond wedding engagement anniversary promise ring set in Silver Platinum plating over alloy metal. Micro black pave crystals enhance this rings band and add even more sparkle. Two .5ct lab created diamonds sit on each side of this stunning ring! Main stone is 8mm. A beautiful black and white diamond band make this ring stand out. Rings measure a total of 12mm when worn together. This ring is absolutely spectacular and even more stunning in person.