18k white and rose gold Pomellato Nudo ring set with a blue and turquoise London topaz and 58 round brilliant white diamonds totaling 0.70ct.  Size:54

Pomellato Nudo Maxi ring in 18k pink gold set with a 15ct sky-blue topaz. Size:54

Nudo Pomellato ring in 18k rose gold and titanium with a 10ct obsidian and 58 treated black diamonds for a total of 0.72 ct.