Art Deco 18ct/18k 750 Gold & Platinum Diamond 0.45ct three stone engagement ring

Art Deco, 18ct, 18k, 750 Gold & Platinum Diamond 0.45ct three stone engagement ring, Circa 1920

This beautiful piece of jewellery has three, old-cut Diamonds mounted in platinum on an 18carat yellow gold shank.
The Diamonds each measure approximately 3 to 3.5mm. The total width of the diamonds across the finger is 12.5mm with a width of 4.2mm.
Hallmarked: 18ct & PLAT (denotes 18carat gold and platinum)

A lovely antique engagement ring, the 3 diamonds represent the past, present & future or simply I Love You.

The Diamonds are well matched, eye clean, very bright & fiery with an estimated clarity of SI2, Colour I, Carat weight 0.45ct. They are lovely deep gemstones, tiny inclusions visible under a jewellers loupe and one of the end diamonds has a chip (only visible under a loupe)

RING SIZE: UK: O 1/2 USA: 7.5
WEIGHT: 2.7 grams
HALLMARKS: 18ct & PLAT (denotes 18carat gold and platinum)
CONDITION: Good
DATE: Art Deco (1920 to 1935)