This is a substantial pair of mid century modern Japanese akoya saltwater cultured pearl and black onyx dice cufflinks.

The pearls are 4.25mm round. One side has a single pearl while the other has six totaling up to lucky number seven! Pearls have great luster with rosy overtones. Black onyx is in good condition with some light chipping on the edges. 

They are made of solid sterling silver with milgrain around the edge. Marked "SILVER" which is an older mark for sterling and "EP" for an unknown designer. Japan 1950's-1960's.

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