Gruno’s Diamonds brings The World’s Most Perfectly Cut Diamond to Rockford and Madison. Hearts on Fire is a luxury diamond brand celebrated around the world. A diamond of extraordinary beauty and brilliance, Hearts on Fire is recognized for its exclusive cut, the single most important factor in a diamond’s value. Setting a new industry standard with the highest quality, craftsmanship and technology, Hearts on Fire is guaranteed to be perfectly cut every time. This means a Hearts on Fire diamond delivers a hallmark sparkle that sets it apart. Behind each diamond is also a promise that your diamond is one of integrity and completely conflict-free. Your serialized diamond is registered and protected with a laser inscription and our exclusive Diamond Identity Document. This designer offers designer bridal and fashion collections that integrate the brand’s timeless expression with today’s top fashion trends. At Gruno’s Diamonds, we understand that sometimes a diamond jewelry purchase can be emotional and overwhelming, we want to make sure you enjoy the entire experience.