Emerald Radiant/Octagon Shaped Gem Lab Created Nano 3x5mm (5pc)

Nano crystal, emerald green, rectangle (actually called radiant or octagon), 5 stones. Fire safe 

Nano crystals as perfect for holding their colour in a kiln plus the colour stays consistent every batch.Nano crystal, emerald green, rectangle 4x6 mm, 5 stones. Fire safe

Emerald is May's birthstone