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

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

Gilson Opal Trillion 4mm White. Sold by the piece.

Gilson Opal Trillion 4mm 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 3mm 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...

This is a unique slab of Gilson White Opal, one of the last of it's kind! It's dimension are 1" x 1.75" x .5" x 1.75" . It weights 15.75...

This is a unique slab of Gilson White Opal, one of the last of it's kind! It is roughly 2" on the longest side, and a little less on the...