Corals are evaluated in these different values goes because of the beginning, quality, and handling of the Coral Stones. Regular corals of great tone and quality will in a general offer at an exceptional cost and because of their extraordinariness can bring up to Rs 2,500 for every carat. Over-the-counter Red Coral Stones have a more pinkish color, are regularly treated with shading and wax, and sell for Rs 300 for each carat.