This is a unique baroque blue Japanese cultured saltwater pearl double strand choker necklace.

The pearls measure 7.50-8.50mm with good luster, rosy overtones and uneven color ranging from blue/gray to pink. They are baroque shape. Some have darker blue or black spots. 

The clasp is solid 10K white gold and is set with a 1/2 cut blue pearl in the center. Very unique! The back of the clasp is detailed filigree. It is stamped "10K".

Total length is 15 & 15.75in, it is a choker.

All pearls are truly vintage and have only been lightly cleaned and restrung.