Yellow Gold and Diamond Men's Rectangular Shape Onyx Ring 
This sleek men's diamond and black onyc ring is sure to impress. A natural rectangular shaped 12 X 4mm black onyx gemstone, accented brilliantly by 4 white round diamonds, is crafted of 10K solid yellow gold on a stylish band. The ring weighs a generous 3.6 grams. A contemporary rectangular shaped men's black onyx ring with prominent character! This ring qualifies for free custom ring sizing. Size 10 is standard. When you order a custom size, please allow an additional 7-10 business days processing time.