Edwardian 0.40 Carat Old Cut Diamond Platinum and 18K Gold Navette Antique Engagement Ring
Circa 1918–1923
About this piece
This early 20th-century diamond ring is crafted in 18K yellow gold with a platinum setting, a combination typical of fine jewelry from the late Edwardian to early Art Deco period. The elongated navette-shaped head is set with a central old-cut diamond, framed by a graduated arrangement of smaller diamonds that emphasize symmetry and line.
The platinum top allows for fine claw work and crisp definition around the stones, while the yellow gold shank provides warmth and contrast. This construction was widely used in the period for its strength and precision, particularly in diamond-set designs where lightness and durability were essential.
The result is a refined, architectural ring that sits elegantly on the hand. Balanced in proportion and understated in style, it reflects the shift from Edwardian softness toward the more structured aesthetic that defined the early Art Deco years.
MATERIALS
18K yellow gold
Platinum
Diamonds
ERA
Late Edwardian / Early Art Deco, c.1918–1923
MEASUREMENTS
Height: 2.2cm / 0.87"
Length: 0.93cm / 0.36"
Band Width: 0.11cm / 0.04"
Diamond - 0.4ct
Weight: 3.22g
RING SIZE
UK: M
US: 6
CONDITION
Excellent antique condition. Stones are secure. Light surface wear in line with age.
SKU
4564
Details
- Era: Edwardian, c.1918–1923
- Diamond: Old Cut, 0.40ct
- Metal: 18K Yellow Gold and Platinum
- Measurements: Height 2.2cm / 0.87", length 0.93cm / 0.36", band 0.11cm
- Ring size: US 6.0
- Condition: Excellent, light surface wear consistent with age
Tiffany’s note
This ring captures the moment Edwardian softness turned into Art Deco structure. The elongated navette shape is wonderfully flattering on the finger, making the hand look longer and more elegant, and the platinum claws hold every diamond crisply.
Ring size and resizing
Antique rings are one of a kind, so each one comes in the size it was made or last resized to. This ring’s current size is listed in the details above.
Most antique rings can be resized by a skilled goldsmith, though some designs can’t be changed much without affecting the setting. Message us with your size before you order and we’ll tell you what’s possible for this ring.
If your ring needs resizing, we’ll have it done before it ships. Resizing usually takes 7 to 10 days, and we’ll email you to arrange delivery once it’s ready.
Caring for an antique ring
An antique ring has already lasted a century or more, and a little care keeps it that way. Take it off for the gym, gardening, cleaning and swimming. Store it on its own so stones don’t scratch each other. Clean it gently with warm water and a soft brush, and avoid ultrasonic cleaners. Have the claws and setting checked by a jeweler about once a year.
Free US delivery, returns and gift wrapping
Delivery is free within the US. Every package is fully insured and needs an adult signature, and we’ll email you to arrange a delivery date before anything ships. Your piece arrives gift wrapped in our signature box.
If it isn’t right, you can return it within 14 days of receiving it. Contact us first and we’ll send you a free, insured return label.