Lithium Niobate Fantasy Cut Stones, Lab Created Gem of Science Marked Letter:135ct Rectangle Cut jewelers sometimes call it "grandma's

jewelers sometimes call it "grandma's alexandrite"

ranging from classics like Brazil to exotics from Germany and Zambia

These are faceted ytterbium aluminum garnet

Each piece is labelled with its gram weight and letter in the photo and they can be purchased individually

Lithium Niobate Fantasy Cut Stones, Lab Created Gem of Science Marked Letter:135ct Rectangle Cut jewelers sometimes call it "grandma'sThese are fantast cut lithium niobate gems. Each can be purchased individually. I don't think fantasy cut lithium niobate has ever been available before it's an odd combination, but makes for some very cool stones! This is lithium niobate, a crystal which plays a larger role in your life than you might think. In addition to more exotic uses like frequency doubling in lasers and use in fiber networks lithium niobate is an essential component of cell