it's ok for the price, the colors are good, not as bright pink and red as on the pics, but more of the cranberry color. which how it should be. one star less because the star effect is still present but not well defined and not very bright. that would be ok for natural stones, but the star effect expected to be perfect in lab grown. otherwise, it is decent, and the sizes are calibrated well.
Absolutely beautiful, even in room light. The color is cornflower blue not starlight (which isn't blue).