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

Size              :  14 x 5.9 x 3.7 mm

Color            :  Bi-color watermelon 

Cut               :  Emerald

Clarity          :  Moderately included 

Weight         :  2.80 ct

Origin          :  Afghanistan

Stone           : Tourmaline

Certificate   :  On buyer demand (buyer will pay the cost):

Treatment    :  none 

Note             :  Stone have one ship on it crown clearly visible in pictures.