The physical properties of sapphire could blunt the tips of incoming rounds, preventing penetration into the aircraft. They cut this melt material into large, thick rectangular slices to make windows for helicopter gunships. In the 1970s, manufacturers grew immense lab-grown sapphires for a variety of applications.

So, can you tell the difference between natural sapphires and lab-grown sapphires? This 790-ct sapphire was cut from colorless corundum grown via the Czochralski (melt) process. Manufacturers still use some of the technological methods used then to synthesize sapphires today. Not surprisingly, sapphires and rubies were some of the first gemstones to be synthesized over 100 years ago. In fact, gem-quality corundum, which includes sapphires and rubies, is rarer than diamond. The demand for sapphires, however, has long exceeded the natural supply.

Their beauty and hardness make them ideal choices for jewelry. Packaged in our stunning grey keepsake velvet ring box and delivered with our hand foiled 'Written in the stars' card.People have highly prized sapphires for ages. Want more inspiration of how to wear or what to stack with? Visit our bridal styling guide. Looking for the perfect partner? Why not choose one of our stunning diamond bands? We love it with our Horseshoe Hugging Ring. Your ring will be made to your exact ring size as per your request, however, we do offer a complimentary resizing service for one size up or down if required upon receipt. Made to order items have a lead time of 6-8 weeks. Designed in London by Carrie Elizabeth’s founder, Carrie Dennahy and made by talented artisans in Jaipur, India using either 14k or 18k Solid Gold and only the finest ethically sourced diamonds and gemstones. Each beautiful design is custom made with love especially for you. Discover our new Written in the Stars collection of stunning, vintage inspired Engagement rings and Wedding bands.

Lab grown white sapphire