Rocks Diamond Collection 18ct Yellow & White Gold Pendant With A Round Brilliant Cut Diamond In A Four Claw Setting. Certified Laboratory Grown Diamond Diamond Carat: 1.00ct Colour: D Clarity: VS2 A diamond is forever.. This stunning necklace is a must have for any ladies jewellery collection. Its elegant but classy and will make perfect finishing touch to any wardrobe no matter the occasion. Watch as the diamond catches and reflects the light can making it an eye catching neck piece which will surely get many admiring looks from people around. Laboratory Grown Diamond Across the globe, scientists & engineers are working to produce some of the world's highest-quality diamonds with good clarity, just like natural alternatives. It is not possible to tell the difference between laboratory grown diamonds and natural diamonds with the naked eye, and even under a microscope there are tiny differences between them. The major difference between laboratory grown diamonds and natural diamonds is the time it takes to grow them. A laboratory grown diamond takes approx 6–8 weeks, when a naturally drown diamond takes 1-3.3 Billion years.