Art Deco Diamond Crossover Trilogy Ring, circa 1925

A budget antique engagement ring that, despite its relatively low price tag, doesn’t compromise on style. Three diamonds – an eight-cut in the centre, flanked by a pair of rose cuts – are illusion set in platinum. The trio of stones are “embraced” by stylishly shaped platinum shoulders and lead to a slim 18k yellow gold shank.

Cut – Eight-cut diamond in the centre with rose cuts either side.

Colour – The centre is H; with J either side.

Clarity – All the stones are clean to the naked eye.

Carat – The centre is approximately 0.02 carat, with approximately 0.01 carat each either side.

Circa – 1925.

Size – P (UK) or 7.5 (US). Complimentary sizing is available, can go up or down.

Measurements – From the edge of one outer diamond setting to the other is 9.7. The ring is 6.1mm at the widest point and sits 4.2mm from the finger.

Metal – Stamped 18CT & PT – 18k yellow gold and platinum – and tests as such.