A rare and beautifully matched pair of Old European cut natural diamonds sit side by side in this exceptional Art Deco “Toi et Moi” ring, crafted in platinum circa 1920. Symbolising two souls joined together, the design is at once deeply romantic and strikingly architectural—bold in scale, yet elegant and endlessly wearable.
Together, the two principal diamonds total 2.00 carats, their antique hand-cut facets coming alive with broad, liquid flashes of light. Unlike the sharper brilliance of modern stones, these old cuts possess a softer, more soulful beauty that feels unmistakably alive on the hand.
Beautifully matched in size and character, the diamonds display the hallmarks so prized by collectors of antique jewellery: high crowns, open culets, and generous, chunky facets that create remarkable depth and personality. Whether worn in daylight or softer evening light, the stones remain expressive and captivating, dazzling with every movement.
Each diamond is embraced by platinum bezel settings that enhance their visual presence while offering elegant protection. Surrounding them, a glittering arrangement of twenty six eight-cut diamonds forms a delicate geometric halo, amplifying the ring’s extraordinary spread and refined geometric glamour. Remarkably substantial on the hand, the ring offers exceptional presence and unmistakable Art Deco character.
The mount itself is substantial and beautifully crafted, with a scrolling openwork gallery allowing light to flood through the stones from every angle. Sitting proudly on the finger with a reassuring weight, the ring possesses the bold confidence characteristic of only the finest jewellery of the period.
Independently assessed by a qualified gemmologist and accompanied by a written report. The principal diamonds are confirmed as natural Old European cuts weighing approximately 1.03ct and 0.97ct respectively, graded approximately I–J colour. Both diamonds exhibit blue fluorescence and display the distinctive charm and individuality only genuine antique diamonds can offer.
A remarkable choice for a unique engagement ring or an important addition to an antique jewellery collection. Pieces of this scale and beauty, preserving such a closely matched pair of antique diamonds within their original platinum Art Deco setting, are seldom encountered today.
The ring is offered in the antique ring box shown and is accompanied by an independent gemmological assessment, seen in the photographs. Additional images of the full report, photographs, and longer video footage showing the diamonds in motion can happily be provided upon request.
THE DETAILS ~
ERA: Art Deco, circa 1920
METAL: Platinum
STONES: Natural diamonds.
~ Principal Diamond One: Old European Cut, 1.03ct, colour I–J, clarity I1, medium culet, 62.5% table, blue fluorescence, dimensions 6.71–6.73 x 3.50mm.
~ Principal Diamond Two: Old European Cut, 0.97ct, colour I–J, clarity I1, large culet, 53% table, blue fluorescence, dimensions 6.77–6.79 x 3.21mm.
~ Surrounding Diamonds: 26 eight-cut diamonds, approximately 0.40 carats total, colour G–H, clarity SI1–I1, average size 1.80mm.
RING SIZE: UK O / US 7. Complimentary resizing is available to ensure the perfect fit. As this service customises the ring specifically for its new owner, resized rings cannot be returned.
TOTAL WEIGHT: 6.79 grams
HALLMARKS: None present. Professionally tested and confirmed as platinum.
CONDITION: In very good antique condition with light age-related wear consistent with careful use over the last century. All stones are secure within the setting. The principal diamonds are graded in the I1 clarity range, which is not uncommon for antique Old European cut stones of this size. Importantly, they present beautifully to the eye, with no distracting inclusions visible in normal wear, and were selected for their lively performance, individuality, and exceptional matching as a pair.
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