Bob Quatuor Rosalind Fixed-Size Ring Lab-grown Moissanite Split

A study in symmetry and quiet luxury, the Bob Quatuor Rosalind Fixed-Size Ring Lab-grown diamond Split centres on the quatrefoil — a four-petal form lifted from classical architecture and reinterpreted for everyday wear. Balanced lines and a luminous lab-grown diamond palette give it a refined, heirloom-like presence.Made from GR4 jewelry-grade titanium steel — the high-toughness tier of our five-grade system, built for structured pieces that keep their shape. It carries the look and the weight of fine jewellery without the heft, never rusts, and it contains no copper and no allergenic heavy metals, so it will never turn your skin green. Finished with 0.4 µm PVD thick gold plating, so it keeps its colour instead of fading or oxidising.