My Finita claw set stud earring design is a simplicity itself, and this pretty, open setting lets the light pour in to the stones making them sparkle all day. And like my Theresa studs, they are part of my interchangeable collection of earrings, becoming the centre of attention in my halos: purple amethyst Finita's sparkle even more with a Cactus diamond halo, and green chrome diopside Finita's feel uplifted with the gold Shippo halo.

Sapphire's dazzling lustre ranges from deep velvet translucent depths to colourless transparency, in blue, pink, yellow, green, purple and colourless hues.

Originating in Sri Lanka, Australia and Myanmar, Cassandra often finds unusual colours and cuts on her travels, enraptured by rarer green sapphires in particular. Regarded as a healing corundum gemstone, with calming properties, it's no wonder sapphires appear in such captivating and mystical hues.

The birthstone for September; this protective gemstone is known to have create powers of serenity and purity, with each colour embodying its own unique sense of wisdom.