History of the Cartier Trinity
Louis Cartier created the Trinity ring in 1924: three bands of gold in three colours, linked so that they roll around one another on the finger. The design was made as a stock piece in the Cartier workshops and has been in production ever since. The writer and artist Jean Cocteau became closely linked with it, wearing two Trinity rings stacked on his little finger from the late 1930s. The meaning of the three colours, often read as love, fidelity and friendship, was attached to the ring later. Over the decades the same idea moved into bracelets, necklaces and earrings, and the ring itself was made in several widths, from small to extra large. In the 1970s and 1980s Les Must de Cartier versions in silver and silver gilt brought the design to a wider audience. Later versions added pavé diamonds and ceramic bands. For the centenary in 2024 Cartier introduced new interpretations, including a cushion-shaped Trinity, while keeping the classic round three-band ring in the collection.
Key references
| Trinity ring, classic model | 18KT yellow, white and rose gold. Three interlaced bands of the standard width. |
|---|---|
| Trinity ring, small model | 18KT tricolour gold. Finer bands than the classic, suited to stacking. |
| Trinity ring, large and XL models | 18KT tricolour gold. Wider, heavier bands than the classic. |
| Trinity ring with diamonds | 18KT gold with one or more bands paved with brilliant-cut diamonds. |
| Les Must de Cartier Trinity | Silver or silver gilt. Versions from the Les Must de Cartier line of the 1970s and 1980s. |
| Trinity cushion ring | 18KT tricolour gold. A cushion-shaped interpretation introduced for the centenary in 2024. |
| Trinity bracelet, pendant and earrings | 18KT tricolour gold. The three linked rings carried into other jewellery forms. |
How to spot a fake
- Look inside the bands for the Cartier signature, the 750 or Au750 gold mark, the size and a serial number. Engraving should be sharp and evenly spaced.
- Check the three colours. Yellow, white and rose gold should be clearly distinct, and each band should have a smooth, even profile.
- Roll the bands. On a genuine ring they move freely and quietly around one another without catching.
- Check the size marking. Cartier rings are sized in the European system, and the number engraved should match the measured size.
- Weigh the ring. Gold Trinity rings are solid 18KT, and a light ring needs further testing. Les Must de Cartier versions are silver and are marked accordingly.
- Box and certificate must match the serial number on the ring. The ring itself is always checked first.
How we check a sourced piece
Before we recommend a piece we test the metal, read every hallmark and maker's mark under magnification, and check the serial number and its engraving against the model and period it should belong to. You receive a written condition report with detailed photographs and video, so you see the piece exactly as it is before you commit to anything. For Trinity rings we also check that the bands roll freely and look for thinning or wear on each band. Mozeris Fine Antiques is an independent dealer and is not affiliated with Cartier.

