This material is not a gemstone - it is prismatic glass hand-cut into dazzling and unique baubles. Prismatic glass is meant to split light into the visible rainbow of colors. Faceting such a piece of glass provides a spectacular rainbow-y piece of jewelry, perfect for those who LOVE bling! This material does NOT have an external treatment - the rainbow effect is internal and will not wear off over time.
The cut piece will be mounted in Sterling and put on a Sterling chain. *Because I am custom cutting it for you, there will be a 2 WEEK delivery for the finished piece, instead of my normal 1-3 days for already finished jewelry. Precision-cut stones made in the USA tend to have an Excellent cut grade and more sparkle when compared to commercial stones (those cut overseas). A hand-cut gem is also a one-of-a-kind - great for a unique gift or a special treat for yourself. This could be kept as part of a gem collection, or worn in the provided Sterling necklace mounting.