Helzberg Diamonds collection of ALTR™ Created Diamonds are synthetic diamonds grown in a lab to mimic the physical properties and structure of real diamonds. You would need special equipment to tell the difference between lab-grown diamonds and real mined diamonds. To the naked eye they appear to be diamonds. ALTR™ Created Diamonds to offer an ethically sourced diamond alternative. Since lab-grown diamonds are not mined diamonds but offer the look and structure of natural diamonds they are quickly becoming the engagement ring center stone of choice for many couples. The diamond industry also created lab diamonds to offer a more affordable option to diamond engagement rings.