Antique 1920s-1930s Art Deco Rectangular Diamond 18K Yellow Gold Engagement Ring
1920s - 1930s
About this piece
This Art Deco diamond ring is a crisp and architectural example of early 20th-century design, crafted in 18K gold with a platinum-topped setting. The ring features a rectangular panel set with a tight grid of old-cut diamonds, creating a clean, geometric face that reflects the strong visual language of the Art Deco period.
The diamonds are set closely together within a platinum frame, a hallmark of the era that enhanced brightness while allowing for precise, symmetrical layouts. The contrast between the cool platinum top and warm gold band adds depth and definition, while the slim shoulders keep the focus firmly on the structured diamond panel.
Elegant and understated, this ring embodies the modernity of Art Deco jewelry and would work beautifully as an alternative engagement ring or a refined stacking piece.
MATERIALS
18K gold band
Platinum-topped setting
Old-cut diamonds
ERA
ART DECO, c.1920s–1930s
MEASUREMENTS
Height: 0.94 cm / 0.37”
Length: 0.69 cm / 0.27”
Band Width: 0.18 cm / 0.07”
Diamonds - 0.41ct
Weight: 2.03 g
RING SIZE
UK: M
US: 6¼
CONDITION
Excellent antique condition. Diamonds are secure and well matched. Light surface wear consistent with age.
SKU
4566
Details
- Era: Art Deco, 1920s - 1930s
- Diamond: Old Mine Cut, 0.41
- Metal: 18K Yellow Gold and Platinum
- Measurements: Height: 0.94 cm / 0.37” Length: 0.69 cm / 0.27”
- Ring size: US 5.75
- Condition: Excellent
Tiffany’s note
The clean, geometric lines are pure 1920s, and they still feel completely modern. It's an engagement ring for someone who loves architecture and order, and it looks just as good worn on its own as stacked with a simple band.
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.