Find a diamond ring from Hearts On Fire that exhibits unmatched radiance! Our 18k gold diamond rings, available in many designs, sparkle unlike any other!. Hearts On Fire, The World's Most Perfectly Cut Diamond, offers engagement rings and diamond jewelry that sparkle unlike any other. See for yourself. Engagement Rings · Diamond Jewelry · Wedding Bands and Rings · About. $4, Hearts On Fire Adoration Dream Solitaire Engagement Ring · Hearts On Fire Coupled Encompass Triple Row Metal Band. from $2, Hearts On.