Labradorite has blue and green flash in certain lights, and this one is no exception! It is rose cut, which means it has multiple little facets cut all over it to catch the light and give depth to the stone. The band is a slender 2mm round, and the gem is set using 4 claws to allow maximum light to flow through it.
It is a size J-, the labradorite  is 8mm in diameter.