Rare bi-color 21.55ct blue and yellow Sapphire

This large sapphire exhibits a rich yellow hue anchored deep in its center with an inflection of strong blue saturation creating a color palette that is as unique as a fingerprint. This is accented by green splashes of color that travels through the gem where its opposing colors meet. Measuring an impressive 21.4mm x 11.4mm x 10.1mm, and having a Mohs hardness rating of 9 out of 10, it is perfect for setting and everyday wear. Beryllium heated only.