This is a Princess Cut purple amethyt cubic zirconia engagement wedding anniversary promise ring set made in Black Rhodium. Small amethyst and clear zirconia crystals enhance this ring from front to side adding even more sparkle. Main stone is 6mm. Rings measure a total of 11mm when worn together. This ring is very beautiful, more impressive in person. This ring comes in the sizes listed above. Sent with jewelry care instructions, ready to ship in 1-3 days.