Lightbox is a DeBeers company that produces lab-grown diamonds. Chemically they are identical to mined diamonds, but cost less and are ethically preferable to many. Lightbox prices their stones at $800 a carat and they are offered in white, pink and blue.
This necklace features a 1.5 carat pink stone on an attached 14k rose gold chain. It is available in other stone sizes.
It is priced at USD$1,600.