What periods do these rings come from?

The pieces originate mainly from the 1920s and 1930s during the height of the Art Deco movement. Some examples date to the Edwardian era or appear as later mid-century revivals. Designs from the primary interwar period rely on platinum and white gold with stark geometric layouts, while later iterations occasionally reintroduce yellow gold settings.

How do I wear an antique geometric ring?

These rings suit daily wear provided you match them with sensible care habits. Platinum and gold settings hold up well, but the sharp corners of plaque and panel designs require attention. Avoid wearing them during heavy manual tasks to protect the channel-set sapphires and delicate millegrain edges from hard impacts.

What is the difference between platinum and white gold in these rings?

Platinum offers greater density and natural bright white strength, allowing makers to fashion very thin wirework and secure settings. White gold provides a similar cool tone but incorporates alloy metals and often relies on rhodium plating. Over decades, platinum maintains its colour without plating, whereas white gold may require occasional maintenance to preserve its initial brightness.

How do I identify French pieces?

French pieces often carry specific maker marks or eagle's head stamps denoting standard platinum purity, alongside distinct atelier punches. The craftsmanship frequently exhibits exceptional attention to underside gallery piercing and stone calibration. French workshops during the 1920s favoured refined platinum work and imaginative geometric combinations that set them apart from standard domestic output.

Are the sapphires treated?

Most antique sapphires are natural, with specific listings noting unheated stones from origins like Mogok in Burma. Natural unheated stones display distinct internal characteristics and softer, organic colour distribution. Documentation or certification sometimes accompanies exceptional stones, detailing their geographical origin and treatment status.

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Geometric Sapphire Diamond Ring

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A geometric sapphire diamond ring brings together angular lines and rich blue stones, capturing the distinct architectural spirit of the early twentieth century.