What is an unheated sapphire?

An unheated sapphire is a natural gemstone that has undergone no artificial heat treatment to enhance its colour or clarity. These stones are valued by collectors for their natural properties. Certification from independent gemmological laboratories typically accompanies these pieces to confirm their untreated status.

How do I care for an antique halo ring?

Cleaning requires warm soapy water and a soft brush, avoiding harsh chemical cleaners or ultrasonic machines that might damage older settings. Professional inspection of the claws and settings every few years ensures the stones remain secure. Removing the ring during heavy manual work prevents unnecessary wear to the gold or platinum mounts.

Can these rings be resized?

Most gold and platinum rings can be adjusted by a skilled jeweller depending on the complexity of the shoulders and gallery work. Rings featuring continuous calibre-cut stones around the entire band present greater challenges for sizing. Consulting a specialist jeweller ensures the structural integrity of the halo remains uncompromised.

How do I distinguish Edwardian from Art Deco styles?

Edwardian pieces utilise platinum and yellow gold with lacy, garland-inspired motifs and delicate millegrain detailing. Art Deco design shifts towards strict geometric symmetry, sharp lines, and dramatic target motifs. Examining the underlying construction reveals whether a piece leans towards romantic Edwardian curves or modernist Deco angles.