Sapphire - 0.90ct Tanzanite opal was a much sought

opal was a much sought after gem for use by the European aristocracy

12ct Matching Pair Natural Green Sillimanite

Opal is a precious stone classified as a mineraloid

necklaces and rings

37mm stone is distinguished by its translucent blend of orange

Sapphire - 0.90ct Tanzanite opal was a much soughtA 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