What is an unheated sapphire?

An unheated sapphire is a natural gemstone that has not undergone thermal enhancement to improve its colour or clarity. These stones retain their original geological characteristics. Certification and scientific testing confirm the absence of heat treatment, which is a significant factor for collectors seeking entirely natural gems.

How do I date a cluster ring?

Dating relies on stylistic clues, metal choices, and gemstone cuts unique to specific eras. Edwardian rings often feature delicate platinum-on-gold daisy motifs, while Art Deco pieces display geometric target or navette shapes. Maker marks, hallmarks, and assay office stamps provide additional chronological reference points for British and European pieces.

What is a target ring?

A target ring is a specific style of cluster ring where concentric circles of contrasting gemstones create a bullseye pattern. Typically, a central sapphire is ringed by a halo of calibre-cut diamonds or a contrasting coloured stone. This design gained immense popularity during the Art Deco period due to its bold geometric symmetry.

Are these rings suitable for daily wear?

Sapphires score nine on the Mohs hardness scale, making them durable enough for regular wear on the hand. However, antique and vintage settings require care to protect delicate claws and millegrain edges. Periodic inspection by a jeweller ensures that the diamonds and central sapphires remain secure in their mountings.

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Sapphire Diamond Cluster Ring

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A sapphire diamond cluster ring brings together vibrant blue stones and sparkling diamonds in settings that span the Victorian era to the mid-century.