Last year was an eventful one for the diamond industry: From the largest producers coordinating supply cuts and the manufactures to returning to profitability, to the second-largest gem-diamond ever recovered going to auction and more. Here's a quiz to test your knowledge.

In 2016, the diamond industry has been marked by the follow-through of actions taken by De Beers, ALROSA and Rio Tinto to curtail global supply.

According to the Zimnisky Global Rough Diamond Price Index, rough diamond prices have climbed 8.9% in the last 3 months.

This was supposed to be a key year for Dominion, especially with the commencement of mining at the company’s rich Misery Main pipe at its Ekati mine.

Current industry data and commentary paints a mixed picture as to whether market fundamentals are stable enough to support growth.

The miners concerted effort to limit global diamond supply is forecast to be offset by stable Russian production, new mines, and production increases by Dominion Diamond and Petra Diamonds.

Despite the fact that the diamond industry is heavily concentrated, and still possesses tones congruent with its relatively recently removed history of being a monopoly, end-consumer demand is still what ultimately drives the health of the industry longer-term.

So far in 2015, the state of the global diamond industry has been closely aligned with the posture of the global economy, as it so often is, and should be.

Two of the seven miners at Marange, Anjin and Jinan, will be shutting down.

Company's rough diamond prices proxy for opaque market.

50 mines are estimated to account for 90% of global rough diamond supply in 2014.

Paul Zimnisky responds to frequently asked questions about investing in diamonds.