Antique Art Deco 1930s 18K .40 carat Old European Cut diamond engagement ring

A classic Art Deco engagement ring with an Old European Cut diamond tucked in a filigree setting. The .40 carat stone is seamlessly set in an octagonal head and the mounting is a showstopper. Cutaway (hand-sawn!) details create an intricate, weblike backdrop for the diamond. The shapes created in the negative space (like the triangles to the east and west of the head) allow for light/dark contrast across the white gold, which we love! Orange blossom and ribbon-like details up the shoulders and around the gallery are a total delight. Comes with a jewelry appraisal for insurance/replacement. Fully sizable.

Measurements: Size 8 US, 1.9 grams
Diamond details: (1) Old European Cut Diamond, .40 carat VS2/G (4.5-4.55/2.41)
Era: 1920s-1930s
Markings: 18K and a jeweler's mark (difficult to identity, certainly American

NOTE: If you select "Size for me, please!" kindly indicate your preferred ring size at check out in the "Add a note to your order" box. Please allow 1 week for sizing to be completed. 
Payment Details

A 6% sales tax will be collected on orders shipped to our guests in Michigan.

Layaway is offered through the ShopPay checkout option! Select ShopPay and pay in 4 interest-free installments. You will receive your purchase without delay as in traditional layaway.


Domestic: In-stock items ship within three days of purchase (usually within two!) via USPS. Our default is USPS Priority Mail unless your purchase is over $1,000, in which case we require USPS Express Mail + signature confirmation. Insurance is included with all domestic purchases.

International: Default shipping is via USPS First Class International Mail unless the value of the parcel is $400 or more, in which case we default to USPS Priority Mail International shipping. Please allow 3–4 weeks for delivery. Insurance for international orders is available upon request and for an added fee.

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Returns & Exchanges

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