Gilson Opal Trillion 8mm Black. Sold by the piece.

Gilson Opal Trillion 7mm White. Sold by the piece.

Gilson Opal Trillion 7mm Black. Sold by the piece.

Gilson Opal Trillion 6mm White. Sold by the piece.

Gilson Opal Trillion 6mm Black. Sold by the piece.

Gilson Opal Trillion 5mm White. Sold by the piece.

Gilson Opal Trillion 5mm Black. Sold by the piece.

Gilson Opal Square 6mm White. Sold by the piece.

Gilson Opal Square 5mm White. Sold by the piece.

Gilson Opal Square 2mm White. Sold by the piece.

This is a unique slab of Gilson White Opal, one of the last of it's kind! It is roughly 1.25" on each straight endge, and roughly 1.75" on the curved...

This is a unique slab of Gilson White Opal, one of the last of it's kind! It is roughly 3" lengthwise and 1" across in the middle. It weights 22.4...