In the Middle Ages, opal was considered a stone that could provide great luck because it was believed to possess all the virtues of each gemstone whose colour was represented in the colour spectrum of the opal.

Gemstone:
Ethiopian opal, found mostly in the form of nodules, was of volcanic origin and was found predominantly within weathered layers of rhyolite.
Specifications:

Gemstone: Ethiopian Opal & Sapphire

Band width: Top:14mm
Bottom 8mm

Ring Size: O 1/2 (7.5)

Material: 14K solid yellow gold