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National Jewellers

National Jewellers

Examination Record

Stock no.
NJO-324
Examined
October 2026

Cartier 18K Three-Colour Gold les must de Cartier Trinity Ring, Size 59

Cartier

18K Three-Colour Gold les must de Cartier Trinity Ring, Size 59

Three interlocking bands in 18k yellow, white and rose gold, the rose band engraved “les must de Cartier” and stamped 750 with a French hallmark. Louis Cartier conceived the Trinity in 1924; the “les must” signature places this example within the line Cartier introduced in 1973 and continued through the following two decades. Cartier size 59, equivalent to UK R or US 8¾.

Condition
Excellent
Metal
Three-tone
Purity
18k
Ring size
9
Weight
10.2 g
Measurements
Cartier size 59 (US 8¾)

What we examine

  • The metal is tested by XRF analysis and verified as 18k gold.
  • Specialist examination includes a review of the piece’s identifying marks and available documentation.
  • Condition is assessed on our six-tier grading scale; this piece is graded Excellent.

The piece described on this record was examined and authenticated by National Jewellers before it was offered for sale. We stand behind the authentication of every item we sell.

This record sets out our examination of the piece. It is not an appraisal or a statement of value. National Jewellers is independent and is not affiliated with, authorised by or endorsed by Cartier; brand names are trademarks of their owners. To confirm this record, write to info@nationaljewellers.ca quoting the stock number.