Toi et moi rings: a two-stone tradition, back in favor
A toi et moi ring — French for "you and me" — is a two-stone ring where the stones sit next to each other, sometimes touching, sometimes on curving separate settings, with the shanks of the ring extending outward like two arms holding two moments. The stones are always the point. They're the two people the ring is about.
Napoleon gave one to Josephine in 1796. That's the origin most people cite: two pear-cut stones, one sapphire and one diamond, set on a plain gold band, given during their brief courtship. The ring sold at Sotheby's in 2013 for close to a million dollars, which more than any other event revived public interest in the form.
The setting
The form is deceptively simple. Two stones, mounted next to each other, connected by a shared or split shank.
The variations come from how the stones relate. Sometimes both stones are the same shape and size, arranged as mirror images. Sometimes they're deliberately different — a pear paired with an oval, a marquise with a round, an old-mine cut with a modern brilliant. The point is the pair, not the symmetry.
The prongs and setting details matter more than in a single-stone ring, because the eye reads both stones together and any asymmetry between the settings feels wrong. Both stones need to sit at the same height on the finger. Both need the same finish on their prongs. Any decorative work between the two — a small diamond accent, a metal detail — has to visually bridge them without pulling attention away.
What the two stones can mean
The symbolism is flexible enough to travel. Historically, toi et moi was framed as the two people in a relationship — one stone for each partner, held together on one hand. That reading still works, and is probably the most common reason someone commissions one today.
But the form has been adapted for other pairs. The two stones can be the birthstones of two children, or the birthstones of two siblings. They can be an inheritance stone paired with a new one, joining a past and a present. They can be two colors that live in one person's palette. The design language is open enough to hold whatever a person wants it to hold.
Why the form disappeared, and came back
Toi et moi rings were common in 19th-century engagement jewelry, then faded through the 20th century as the single-stone diamond solitaire became the dominant engagement ring form. The De Beers marketing campaigns that made "diamond forever" a phrase specifically favored the solitaire — one stone, one story.
The form came back in the 2010s, partly through celebrity engagements (Ariana Grande's toi et moi in 2020 is the most cited), partly because the diamond industry had loosened enough to allow non-standard forms back into engagement rings, and partly because more people wanted engagement rings that didn't look like everyone else's.
Now the toi et moi is a specific category with real demand, especially for anyone who wants the emotional weight of an engagement ring without the solitaire aesthetic.
Getting the two stones to talk to each other
The stones need to work together visually. Two round brilliants of similar size can read redundant unless the sizes are meaningfully different or the colors contrast. Two very different cuts — a round and a pear, an oval and a marquise — tend to read more intentional. The difference is the design.
Colored stone pairings work particularly well in this form. A blue sapphire next to a diamond echoes the Napoleon-Josephine ring. A morganite and a diamond, an aquamarine and a diamond, a natural fancy-color diamond and a colorless one — any pairing where the two stones have distinct identities but complementary weights.
Metal color affects the reading. Yellow gold warms both stones and unifies them. White gold or platinum reads cooler and lets the stones read more independently. The choice depends on what you want the ring to feel like.
The bands
Two-shank forms — where the ring is essentially two overlapping bands — work well for rings that will be worn stacked with wedding bands later. The overlap creates a place for the wedding band to sit against.
Single-shank forms — where one band supports both stones — read more like a traditional engagement ring in their bones, just with two stones instead of one. They're easier to wear with any wedding band.
Diptych at Catherine Peck
The Diptych collection is Catherine Peck's take on the toi et moi form. Every piece is one-of-one — built around a specific pair of stones that were sourced to work together. The stones are usually chosen months apart, waiting for the second stone that finishes the pair.
Currently in the collection: Elphaba and Glinda (a pair of watermelon tourmalines set as opposites — a pink-with-green-inclusion paired with a green-with-pink-inclusion), Reprise (a pair of fancy-color lab diamonds), and Nocturne (a moonstone and a lab diamond). Each is designed as a specific relationship between two stones. When one sells, the piece can't be remade, because the second stone was one-of-one too.
The alternative to a one-of-one Diptych is a bespoke commission. Bring two stones you already own, or ask for help finding a pair. The design conversation starts at Custom Orders.