11.57 ct Rose cut Blue Topaz 15x12.7mm Oval cut Loose Topaz, Swiss Blue Topaz Faceted, December Birthstone

Tested on Refractometer: Topaz
Measurements: 14.9 x 12.7 mm, 6.7 mm deep
Weight: 11.57 carats
Color: Swiss Blue
Clarity: Eye clean
Cut: Oval
Condition: There is a chip on the back, but it‘s not noticeable from the front. See photo 5
Treatments: Heat and irradiation. Nearly all richly colored blue topaz is heated and Irradiated
This was sourced from pre-owned gold jewelry