The 38 mm Round Black Onyx focal is set off in this necklace by a combination of 10mm, 8mm, 6mm, & 4mm faceted round Black Onyx Gemstones.  They are wire wrapped with Argentium Silver wire into the necklace that is accented with sterling silver filagree links, and is terminated with a sterling silver lobster clasps.   The Necklace is 19 inches long - the focal drop falls another  2-1/4 inches.