A large white pearl sitting inside a ring of gold rather than on top of it. The pearl is held from below at a single point, and nothing touches it anywhere else. Look at it from above, and you see gold, air, then pearl, which is where the name comes from.

That is the whole engineering problem of this ring. The pearl is drilled from underneath only; a gold pin runs into the hole and is bonded with a dedicated pearl adhesive, and the arm carrying that pin is thickened where the load sits so the pearl stays exactly centred in the opening. There are no prongs, no bezel, and no second point of contact.

I carve the form in wax first, then cast it in one piece. The band splits into two lines that cross behind the pearl and open into the circle that frames it. Because the ring is open at the back, it stacks easily against other rings on the same finger.

One face of the gold is given a fine brushed texture; the other is left highly polished, so the two lines read differently as they wind around one another.

The pearl is a white bouton, 16 mm, round and flattened on one face, with a clean, even surface. The ring measures about 20 mm across at its widest point.

This one has sold. I can make it again with another bouton pearl of the same size from my own stock. Made in 18K or 14K gold, in yellow, white, or rose.

Two more open rings built around a 16 mm bouton pearl: Array, a single loop made to stack, and Infinity, where the gold spirals across the face of the pearl.

Made by hand in my Jerusalem studio.