Sapphire - 0.90ct Tanzanite Opal is a precious stone

Opal is a precious stone classified as a mineraloid

Amethyst is a violet variety of quartz

This 20x13

37mm stone is distinguished by its translucent blend of orange

Sapphire - 0.90ct Tanzanite Opal is a precious stoneA 0. 90ct Sapphire selected by our CRWN experts for its quality and utility. Each of our stones comes supplied with certification and our 100% guarantee. This (no size) stone is distinguished by its golden green colour, and is ideal for necklaces, rings, and charms. Sapphire is a natural species of the mineral corundum. Sapphires are commonly distinguished by their brilliant blue and purple colouring, although they are found in other colours. These