What a beautiful and unique ring.  It is in fabulous pre-owned condition.  It is stamped "925 18K Samuel B".  It has four rows of round cut Black Onyx stones and they are flanked by 18k yellow gold coin dots.  The remainder of the band is sterling coin dots.  It's a fabulous design.    This is something you can wear everyday.  You can dress it up or down. The ring is a size 7. and comes with a blue Samuel B pouch.  This will surely get noticed.  The weight in grams is 4.82 mm.