Grading The 4C of Lab Grown Diamonds
Colour:When it comes to transparent diamonds, the grading of the colour of these gemstones – natural or man-made – is graded in a range of D to Z. The higher the grade of the stone; the more colourless the diamond is.
Carat: Lab grown diamonds can be made in large carat weights compared to their natural counterparts. Man made diamonds between the carat weights of 1 and 3 are quite popular among jewellery lovers because they are much more affordable and cost-effective. CVD Diamonds can become as large as 6 to 9 carats, whereas HPHT diamonds can reach up to 10 carats, with the largest ever growing up to 15 carats. The bottom line is you will find practically no difference between natural and lab grown stones. They appear similar; they are made of the same components, and they are graded in a similar way. However, lab grown diamonds will put less strain on your wallet!
Clarity: Since we all know lab diamonds in India are made under a controlled environment, they are much more likely to receive higher clarity grades than naturally mined diamonds. However, they might still have certain inclusions which can affect their grade.
Cut: Lab grown diamonds in India are cut just like natural diamonds. They use the same process and tools to give a uniform shape to the stone. However, diamonds grown in labs are more uniform in shape and contain less imperfection.