3.49 cts OPALE JAUNE. FL Sri Lanka. With Certificate newest of Authenticity

newest NAME OF THE NATURAL OPAL STONE
AVERAGE WEIGHT 3.49 carats
Octagonal SIZE
DIMENSIONS 11.35 x 9.32 x 6.84 mm
Yellow
CLARTE FL
EXCELLENT CHANDELIER
ORIGIN Sri Lanka
DURATION 5.5-6.5
DENSITY 1.9-2.5
REFRACTION INDEX 1.544-1.553
UNHEATED TREATMENT
QUANTITY 1 piece(s)
REF 20101455A