Bi-colour sapphires are stones that contain two colours as a result of colour zoning. Sometimes referred to as parti sapphires, the two...

Milky sapphires, often referred to as "milk sapphires", "opalescent sapphires" or "silk sapphires," are unique gemstones known for their...

Star spinel, a rare and captivating gemstone, stands out for its mesmerizing star-like phenomenon known as asterism. This optical effect,...