How do I care for an unheated blue sapphire ring?

Sapphire rates high on the Mohs hardness scale, making it durable for regular wear alongside platinum or gold mountings. Clean the ring gently using warm soapy water and a soft brush to maintain the brilliance of the stone. Avoid exposing antique settings to harsh chemicals or ultrasonic cleaners, which can damage older mounting techniques. Periodic inspection by a jeweller ensures the claws remain secure around the central gem.

How can I tell a Ceylon sapphire from other origins?

Geographic origin is typically determined through certified laboratory reports that examine microscopic inclusion patterns and trace elements. Specific regions like Kashmir or Burma impart distinct textural qualities to the corundum. Without documentation, visual identification alone remains difficult even for experienced handlers. Certification provides the definitive record for these specific stones.

Why does thermal enhancement matter for sapphires?

Most commercial sapphires undergo heat treatment to dissolve inclusions and intensify blue colour. Unheated stones have avoided this process entirely, retaining their natural geological properties. This lack of intervention contributes to their desirability among collectors of fine antique jewellery. Certification confirms that the stone remains in its natural state.