These are the two rings a lady most often buys herself when she wants something with a story rather than a stone. The Cartier Trinity is quiet symbolism — three interlocking bands worn as a daily signature. The Bulgari B.zero1 is the opposite instinct: architectural, spiralled, unmistakably modern. Choosing between them is choosing between whisper and statement. On price they overlap more than you might expect — a classic tri-gold Trinity from around £650–£900 pre-owned, a gold B.zero1 from roughly £600–£1,100.
What is the difference between B.zero1 and Trinity?
The B.zero1 arrived in 1999, its coiled silhouette borrowed from Rome’s Colosseum and its rim engraved with the doubled Bulgari logo — heritage rendered as engineering. It reads as confident, design-literate self-expression, made to stack and to be noticed. The Cartier Trinity is older and softer in intent: created in 1924, its three bands stand for love (rose gold), fidelity (yellow) and friendship (white), and it was famously associated with Jean Cocteau (the Trinity ring). It is the anti-statement — a rolling, tactile ring worn for its meaning rather than its logo.
How much is a pre-owned Bulgari B.zero1?
Price tracks band count and metal. A single-band 18ct gold ring starts from around £600 for an older, worn piece and asks up to about £1,100; the iconic two-band sits roughly £1,100–£1,900; three-band about £1,300–£2,300; four-band £1,800–£3,000. Gold-and-ceramic versions (black or white) run from around £1,000, and pavé-diamond and the studded “Rock” pieces climb from roughly £1,900 well into five figures. Pendants and bracelets broadly follow.
How much is a pre-owned Cartier Trinity?
The classic tri-gold ring is the heart of the line, from around £650–£900 for a smaller, worn example without box or papers to roughly £1,900 or more for a large or boxed one. Ceramic versions (black or pink) sit about £900–£1,650. Semi-paved and full-diamond Trinity rings run £3,000–£7,000 and up — a recent boxed 18ct semi-paved example was offered around £6,700. Trinity bracelets start near £700, and necklaces and pendants roughly £1,360–£2,510.
Pre-owned UK guide ranges, as of July 2026
| Segment | Bulgari B.zero1 | Cartier Trinity |
|---|---|---|
| Entry, gold (worn) | 1-band from ~£600 | classic tri-gold from ~£650–£900 |
| The iconic version | 2-band ~£1,100–£1,900 | medium tri-gold ~£1,300–£1,900 |
| Gold + ceramic | ~£1,000–£1,650 | ~£900–£1,650 |
| Pavé / diamond | from ~£1,900 to five figures | semi-paved ~£3,000–£7,000 |
| Necklace / bracelet | ~£1,500–£3,000 | ~£700–£2,510 |
These are wider open-market asking prices, not Chrono6538’s own prices — our pieces are authenticated, checked and guaranteed, and sit at a premium to the bare private-market floor.
Which is easier to resell?
Descriptively, and not as investment advice, the Trinity is the more resilient resale name of the two. As a continuously made 1924 icon with a universally understood story and a low classic entry point, it has the deepest pool of buyers, and the classic tri-gold ring changes hands fastest; diamond and boxed examples hold the most. The B.zero1 is liquid too, but more design- and metal-dependent: the two- and three-band gold rings and gold-ceramic versions move readily, while larger-band, pavé and Rock pieces have thinner, more specialist demand and a wider price spread. Both discount meaningfully from retail pre-owned — commonly 30–50%.
So which should you choose?
Choose the Trinity if you want meaning worn lightly — a ring you can put on and never take off, that says something only you need to know. Choose the B.zero1 if you want architecture on your hand, a bolder, more contemporary line that holds its own stacked or alone. Both are authenticated, guaranteed, and yours to love.
Buying a B.zero1 or Trinity pre-owned
Buy the reassurance with the ring: an authenticated, checked piece with a guarantee behind it is worth the small premium over an unknown seller. Explore authenticated Bulgari and Cartier pieces at Chrono6538 and see our jewellery collection →
Last updated: 28 July 2026. Guide ranges are drawn from Chrono6538’s proprietary dataset of pre-owned pieces and current open-market asking prices; individual pieces vary by condition, box and papers.