A men's solid gold black onyx ring in your choice of 10k, 14k gold, or 18k gold set with a 10mm x 8mm cab-set onyx ring.
The shoulder width of the band at the top measures 9.7mm wide and graduates to 3.3mm at the bottom shank of the ring. Top/face of the ring measures 12.2mm.
The ring weighs 8.80 grams in 10k, 10.36 grams in 14k and 11.9 grams in 18k gold.
Also available in white gold or sterling silver, shown below.