Explore Hearts on Fire eternity rings at Loupe. Mark your milestones in the most beautiful of ways with a stunning Hearts on Fire Eternity Rings. Rare, beautiful, and expertly crafted, each eternity ring is sculpted using only the finest precious metals and decorated with their signature cut diamonds (a.k.a the ‘world’s most perfectly cut diamond’). The result? Exquisite pieces that evoke all the romantic notions of forever and will be treasured by your beloved for eternity.