A diamond dress ring, by Cartier, and a 'Trinity' ring, by le must de Cartier1st: Collet-set with a brilliant-cut diamond in a bicoloured bombé setting with tricoloured fluted shoulders, 2nd: Designed as three interlocking 18 carat tricoloured gold hoops, 1st: diamond approx. 0.30ct, signed Cartier, numbered, maker's mark, French assay mark, 2nd: signed le must de Cartier, European Convention mark, Swiss assay mark, ring sizes: 1st approx. K, 2nd approx. R (2)