Extravagant ring with large Tahitian pearl

Fancy ring with large Tahitian pearl of ca. 17.7 mm and brilliant-cut diamonds totalling ca. 1.68 ct, RW (G)/SI, 18K WG, 32.8 gr, ring size 55, ring head hight ca. 2.5 cm, 21st century, minimal signs of wear, maker's mark Christina Rasmussen.