Stacking rings (and bracelets and necklaces) are here to stay, it seems. These pretty emerald set ones are by designer Rachel Rose, based in California and selling on Ruby Lane.
She describes these one-of-a-kind rings as, “AA Colombian emerald gems in the green that only real Colombian emeralds are, bezel set in round bands of matte 18K solid Gold. Size is 6 but I can easily size the rings for you…just let me know. Wear them individually, 2 or 3 at a time, each single ring has a 1.5 cts and the double ring is 3 cts of emerald. The colors of the green and the bright 18K gold are simply amazing. ”
These sell for USD$1,250.