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.

18K Yellow Gold with 48 diamonds in 0.93ct Ring

Marco Bicego® Jaipur Color Collection 18K Yellow Gold Blue Topaz Medium Stackable Ring

Ring in 18k rose gold set with 32 brown diamonds de 0.4ct, size 52