What do you look for in diamonds?

Your answer depends on why you are buying diamonds.

As an investment, you can educate yourself as to the four Cs of diamond value: cut, clarity, colour and carat weight, and then buy the highest grade diamond with the heaviest carat weight that you can afford.

As bling, you can forego everything above except carat weight and understand that the diamond is not an investment grade gem-stone and may not sell for as much as you paid for it.

As industrial hardner, you can look for the size, grade and quantity that you want to buy.