Bicolor Yellow and Pink Pixel Heart in Lab Sapphire 11.9 ct egg It also has odd pale

It also has odd pale yellow fluorescence under short wave unlike classic christmas garnet which is red in short and long wave

and with a hardness of 8

Colorless lithium niobate was once popular as a diamond simulant but it really isn't that good of one simply because it's much brighter and more dispersive than a diamond

When the SDI was finally wound down there was a lot of this stuff lying around which was surplused off and often made it into the hands of faceters

Bicolor Yellow and Pink Pixel Heart in Lab Sapphire 11.9 ct egg It also has odd paleThis is a custom cut pink and yellow lab sapphire done in a pixel cut tablet heart. When held up in front of you it makes a sort of pixelated version of what's behind it. It weighs in at 11. 9ct and measures 14. 75x14mm.