Edwardian Fancy Diamond Toi et Moi Ring
A remarkable antique Toi et Moi crossover ring dating from the early 20th century, circa 1910. The principal stones are both old cut diamonds and both around half a carat in weight: one is icy white, the other displays a rich pinkish-brown hue that stands out as both unusual and startlingly beautiful. The ring is crafted in platinum throughout with curved shoulders that sweep around the head, accented by further icy white old mine cut diamonds diamonds and meeting between the two principal stones at the head.
Era: Edwardian, circa 1910
Ring size: K 1/2 or 5.5 US. Resizeable for £55
Head: 8.0mm by 10.2mm
Stones: Old European Cut Diamonds, white (0.48ct) and fancy pinkish-brown (0.51ct). Old Mine Cut Diamond shoulder accents. (calculated weights)
Marks: Stamped PLAT
Condition: Great antique condition
Full appraisal document provided with each item
This includes a valuation for insurance purposes, item specifics, date, and origins (where applicable)
Gemstones are tested by an accredited gemmologist (Cert GA, Gemmological Association of Great Britain)
Shipping
UPS Express shipping is free of charge on international orders over £300 and it's carbon offset
Tracked and insured with signature on delivery
RM Special Delivery (UK domestic)
US Shipments
US Shipments
US Customs now charges a 10% tariff on all UK shipments as they cross the border. We will pay this customs charge on your behalf. Import duties remain 0% on antiques.
[Last updated: 28th February 2026]
Resizing
Ring sizing is available on most rings
£55 flat fee
Resizing takes 7-14 days
Leave a note at checkout with your desired size
Note: sizing may remove some of the patina (although we take every care to reduce this where possible)
Layaway
25% deposit taken to secure the item. The remaining balance will be settled in 90 days. You can pay installments weekly, monthly, or the full balance at the end - whatever works.
Condition
We offer detailed and accurate condition reports on each listing. These pieces are antique, vintage, or pre-loved and often over 100 years old so they're going to have lived a life. A healthy patina and the odd scuff or scrape is quite normal... it's part of their charm! Everything we present has been checked over by our jeweller and should be good for wear for many years to come (unless otherwise stated) but please remember to treat them with appropriate care and consideration for their age.
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info@lostowl.com
An inscription can be added inside the band, where space allows. Add 3-6 weeks to shipping times Add a note in the cart* with your desired size and/or inscription
*the shopping cart, not checkout