The 7th anniversary: black onyx

Black onyx is 7 / 10 on the Mohs scale. Hard stones wear anywhere; softer ones prefer earrings and pendants.

Black onyx is the None birthstone and the traditional stone of the 7th anniversary. We set it for both, and for no occasion at all.

Untreated unless the passport says otherwise. When a stone of ours is heated or grown in a lab, the passport says so in that word, in the same type size as everything else, and the price reflects it.

Today, $560 to $1,080 across 5 works, most near $860. Each is one of a kind, so the page moves as stones sell and new ones are set.

Ready-now works leave the studio within two business days, insured and signed for. Made to order pieces state their bench time on the page, most within three to four weeks.

Thirty days from delivery, in original condition, in the slate box. Resizing is free for life on rings, and any stone we set can be reset into a new mount as taste changes.