A spinel and diamond ring, set with a sugarloaf pink spinel weighing 10.71 carats, to a mount set

A spinel and diamond ring, set with a sugarloaf pink spinel weighing 10.71 carats, to a mount set entirely with circular-cut diamonds in white gold, size N, stamped 18K

Accompanied by report number CDC23081183 from C. Dunaigre Switzerland, dated 19th August 2023, stating that the purplish-orangy-pink spinel is of Vietnamese origin, with no indications of treatment