How can I use this index?

The index can be used to understand and track the historical price behavior of different rare fancy color diamonds. This is useful for

1. Consumers and collectors trying to estimate the change in value of a diamond they own/li>
2. Traders and retailers who seek an indication of current market prices based on their previous purchases or for estimating changes in their inventory value
3. Investors who are deciding between several options of rare fancy color diamonds for investment