Gorgeous 3ct. Blue Zirconia Ring Size 7. Rhodium plated nickel base metal. The stone is absolutely stunning! The photos do not begin to capture the fire in this stone! Buy this for the stone, not the setting! I bought this ring with the intention of having the stone set in a .925 setting, (the ring was too small for me). The current setting will tarnish over time, especially if exposed to creams, soaps, deodorants, etc.