Main Stone Type: Natural Ethiopian Fire Opal (Australian Opal substitution available – please choose “7x7mm round” option in the Australian Opal Upgrade page) Main Stone Details: 7mm*7mm Round Faceted Cut Accent Stone Type: Genuine Diamonds Accent Stone Grade: VS Clarity, G Color Accent Stone Weight: ~0.05 ctw Main ring only option: Main ring only, without any matching band 2-piece set option: Includes one main ring and one matching band – You may choose to purchase the main ring by itself or as a 2-piece set with the matching band as shown. Whenever possible, we recommend purchasing the main ring and the matching band(s) at the same time to ensure a perfect fit. – Of volcanic origin, Ethiopian fire opals may display varying degrees of green, blue, yellow, orange and/or red color combinations, so we kindly ask you to embrace the natural variations that make each opal gem unique. If you have a preference for your opal’s primary color, please leave us a note at checkout, and we will do our best to accommodate. – Special Opal Care: Ethiopian fire opals are often described as a living stone because of their ability to absorb moisture and liquids from the environment, thus contact with liquid chemicals can cause permanent damage and stain to the stone. Please visit our care page for more information.