Rare bi-color 3.91ct blue and yellow Sapphire

This large sapphire exhibits a rich yellow hue anchored at the end with an inflection of strong blue saturation creating a color palette that is as unique as a fingerprint. This is accented by a green ribbon of color that travels through the gem where its opposing colors meet. Measuring 8mm x 7.8mm x 6.2mm, and having a Mohs hardness rating of 9 out of 10, it is perfect for setting and everyday wear. Beryllium heated only.