At the centre of this ring sits an oval-cut blue sapphire of 0.8 carats in a claw setting, flanked by two old-cut diamonds in matching claw settings. The three-stone format — one of the most enduring engagement ring designs — is here given a vintage sensibility by the choice of old-cut diamonds: stones cut before the development of the modern brilliant cut, with a rounder outline, a smaller table, and a deeper pavilion that produces a warmer, softer quality of light than a contemporary stone. The effect is of a ring that feels genuinely antique in character while being entirely new in construction.

The three central stones are enclosed by a halo of twenty-two old-cut diamonds set with a milgrain edge — the fine beaded border that is one of the defining details of Edwardian and Art Deco jewellery, here used to give the halo a period-appropriate finish. Two further diamond accents sit on the shoulders. The ring is made in platinum, the preferred metal for diamond and sapphire settings for its strength, its neutral colour, and its ability to hold stones securely over a lifetime of wear. Resizable.

Total diamond weight 1.26 carats. Tests as platinum. Ring size M (UK); 1 × 1.4cm face; weight 3.2g.

The Details

• Sapphire: 0.8 carats, oval cut
• Total diamond weight: 1.26 carats (old-cut throughout)
• Halo: 22 old-cut diamonds with milgrain edge
• Ring size: M (UK) — resizable
• Face dimensions: 1 × 1.4cm
• Weight: 3.2g
• Hallmarks: Tests as platinum