Dimonds are useful because its the hardest naturally occurring substace.
'Useful' in this context is most probably a philosophical query. Practically, however, about 75% of all diamonds mined are industrial diamonds, and their application in precision tools and cutting tools make some construction and repair possible.Insofar as gemstone diamonds are concerned, this is where the philosophical query begins.
Eighty percent of all diamonds mined are industrial diamonds, used in tools to increase sharpness, precision and useful life.
Diamonds are most 'useful' as industrial diamonds, attached to tools that require precision, tough cutting abilities and so forth.
Diamonds are not generally wasted, given their monetary value and useful value as the hardest mineral known.
Industrial diamonds -- about 80% of all diamonds mined -- are used in precision instruments, cutting tools and otherwise in ways that improve efficiency and accuracy.
Diamonds are quite helpfull.
Society for the Diffusion of Useful Knowledge was created in 1826.
Society for Establishing Useful Manufactures was created in 1791.
Diamonds are known for their exceptional hardness, making them resistant to scratching and wear. They also have a high refractive index, which gives them their characteristic brilliance and sparkle. Additionally, diamonds have strong thermal conductivity, making them useful in industrial applications such as cutting and drilling tools.
'Society' could purchase diamonds with certificates from the Kimberley Process, or from some other authentic procedure to insure that the diamond being purchased is not a blood diamond.
Boston Society for the Diffusion of Useful Knowledge was created in 1829.
Most diamonds are used in industry and not in jewelry. Their hardness makes diamond useful as a cutting tool.