Which ASX 200 iron ore share has gained 45% in 2021?

This year has seen record-high iron prices as well as a record high for the S&P/ASX 200 Index (ASX: XJO), and one share is positively booming in the excitement.

The Champion Iron Ltd (ASX: CIA) share price has gained 45.6% since the start of 2021, making it one of the best performing ASX…