nope nope nope and NOPE... IC Diamond is not ... something that i would call great ... that and AS5 ... but at last AS5 does not have a "special" rep person ... either of them are old and ran over by many other cheaper and better performing brands (they would still be worth something if they got a lower in price ... well for AS5 ... IC is trash anyway ... )
for me they go along in the trash bin with SPIRE and "no name" chinese brand TIM (altho i still have a tube of AS5 for test and comparison )
Arctic (not Arctic silver but Arctic Cooling ) Gelid, Thermal Grizzly, Phobya, Thermalright, Prolimatech, these are worthy of any praise ... (specially Thermal Grizzly , Arctic and Gelid ... the GC-extreme from Gelid is the only one tailing Thermal Grizzly Kryonaut)
i have all TIM from Thermal Grizzly, you pick .... Aeronaut, Hydronaut, Kryonaut and Conductonaut... curently using Hydronaut but will switch to Kryonaut next time i will change my CPU block.
altho that TIM brand has been discussed quit a bit in that thread
https://www.techpowerup.com/forums/threads/thermal-paste-applied-on-your-gpu-cpu-survey.211803/
(no wonder Thermal Grizzly is the top dog now and i am glad it's widely distributed in Switzerland even the liquid metal type hold his ground, since before it was introduced only the other liquid metal were beating the Kryonaut )