While you might think an SI clarity diamond is the best value for money, the answer is often yes, but, not always. The reality is that while SI1 and SI2 diamonds can be a great value, and are often eye clean, they’re not always. If you’re thinking about purchasing an SI1 diamond online without backup from an expert, here’s what you’ll want to watch out for.

Inclusions. They sound like a good thing, but, they’re small naturally occurring blemishes inside of diamonds. Inclusions can block light from bouncing around inside your diamond, making it less brilliant.