Pious Eco Diamonds Are Manufacturer And Exporter Of CVD Diamond Jewellery. Our aims to set its agenda, rather than to pursue the business as a follower of the existing market leader.Welcome to ABC diamonds. We are one of the leading lab grown diamond manufacturers and suppliers in India. With the future of synthetic diamond industry very strong also called the Lab grown or CVD diamonds they are surely going to stay and will be an important part of the luxurious existence of the high and mighty. Lab grown diamonds or CVD diamonds are the latest craze among rich and classy people across the globe. With the same class as the diamonds extracted through geological processes they are much cheaper and offer value for money. Diamonds are a women’s best friend.