Diamond Top Pattern Trading Guide: How to Spot a Trend Reversal Before Everyone Else The diamond top pattern is a bearish reversal pattern that forms near the end of a strong uptrend. It is called a “diamond” because the price structure resembles a diamond shape on the chart, with the middle section expanding outward and the beginning and end narrowing inward. https://www.tradewill.com/blog/diamond-top-pattern-trading-guide