Quoted for truth.Diamond weight from Bikerumor: 4.8 lbs
Pike weights (claimed, albeit my experience says the real weights are very close to claimed): 26” – 1835g (4.05 lb), 27.5” – 1861g (4.10 lb), 29” – 1876g (4.14 lb)
Source:https://www.sram.com/rockshox/products/pike-rct3#specs
Edit: I'd like to ride a Diamond, but the Pike isn't going to be easy to beat.