This is a unique claw prong bypass Japanese saltwater akoya cultured pearl ring.
The pearls are 6.00-6.25mm round. They have soft luster with rosy overtones. One is slightly pinker than the other.
It is set in solid sterling silver. It is stamped “SPM” for a designer. Not stamped for metal but solid sterling silver. Total is a US size 6 1/2.
All pearls are truly vintage and have only been lightly cleaned.