How much does a Diamond cost per gram in Indian rupees?

One gram of diamond equals five carats in gemstone weight.

A single diamond weighing approximately five carats, today on Blue Nile, will cost you between US$41,493 to US$893,661, depending on the cut, clarity and colour that you want.

Converting those numbers to rupees means that you will spend between 2,293,110.62 INR and 49,459,666.39 INR.