18/10/2026
Our Australian sapphires, from the Central Highlands of Queensland, formed under intense heat and pressure deep within the Earth’s crust, up to 350 million years ago. Microscopic chemical inclusions of iron or titanium in the crystals formed inky greens, yellows, and teals. As the minerals surrounding a crystal change as the sapphire forms, different colours can form within the same stone.
Between 35 and 65 million years ago, rising basaltic magma and ash eruptions tore through this crust, lifting the crystals towards the surface. Since then, the volcanic rock has weathered away, leaving the hard sapphire crystals intact in layers of compacted gravel, where they are found today.
These stones are found across the Emily Nixon collection, including the ‘Harlequin’ Tolmen and ‘Inland Sea’ Porth.