2 Carat Cartier Diamond Eternity Band in Yellow Gold2 Carat Cartier Diamond Eternity Band in Yellow Gold. This incredible eternity band was produced by Cartier and features diamonds set in pave style. One hundred and thirty three (133) round brilliant cut diamonds totaling 2 carats adorn the ring and are set in three rows creating an incredible impact. Finished in 18k yellow gold, this stunning Cartier ring is great alone or in a stack of bands.