Antique 1910s 1.47 carat Old Mine Cut solitaire engagement ring

A plump and kaleidoscopic 1.47 carat Old Mine Cut diamond perched in an 10K rose gold Ostby & Barton mounting. Beautiful in its simplicity, this Art Deco solitaire is a perfect example of the classic bridal design of the 1920s. The mounting is marked for Ostby & Barton, a highly regarded jewelry company of the day. The GIA certified diamond has cushion-y dimensions and a tight starburst-pattern of facets across the crown. We love the warm color (M) of this stone and the unhurried, flickering sparkle that it displays. Lovely, low profile. 

This ring comes with a jewelry appraisal for insurance/replacement as well as a GIA Diamond Report. View the report here.

Measurements: Size 5 1/2 US, 2.6 grams total weight
Diamond details: (1) 1.47 carat Old Mine Cut diamond, GIA #2225523434, SI2/M
Era: 1900s-1910s

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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