It's a beautiful natural faceted cut handmade  lagoon color tourmaline loose gemstone for jewelry from Afghanistan. All the pictures were taken by iPhone 8 plus in natural diffuse light.

Size              : 9.5x6x4.2 mm
Color            : lagoon
Cut               : Cushion
Clarity          : Moderately included 
Weight         :  2.00 ct
Origin          : Afghanistan
Stone           : Tourmaline
Certificate   : On buyer demand (buyer will pay the cost):
Treatment   : none