With loose diamonds, you could always decide to turn them into a piece of diamond jewelry to wear every day, so for that reason, it's worth buying something that you genuinely like and enjoy - especially since it may be a few years before you see a return on your investment.

All over the world, India is deemed to be the region where diamonds are found at cheaper rates. This certainly has many other reasons as well.

Or, you may have unique specifications and find the exact diamond you want is available, but only as a loose stone. You can buy it and then have it fitted into a custom setting.