16x12mm Blue Topaz Oval Cut 12.82 Carat, Loose Gem, Faceted Real Topaz, Reclaimed Gems, December Birthstone US Seller

Tested on Refractometer: Topaz
Measurements: 16.0 x 12.0 mm, 8.2 mm deep
Weight: 12.82 carats
Color: Sky Blue
Clarity: VS; Eye Clean
Cut: Oval
Condition: Pretty good, but there are some tiny chips along the facets on the back (See pictures 5-6)

I offer a 14-day money back guarantee.