Do you still think the diamond is the hardest substance on earth? If so, you should read this quick article that shows that a diamond may still be a girls best friend, but it ain't the hardest kid on the block these days! read more
Diamond is the hardest substance known to science. Second to diamond, corundum is the hardest substance known to man.
The first place in hardness is shared by the diamond and the metal tantalum. Circular saws having diamonds as teeth are used for cutting hard stone; and tubular drills, armed at the end with diamonds, for boring holes through rock.
by Tamilarasan123 6 years ago
If Diamond is the hardest material in our world?If Diamond is the hardest material in our world. if the diamond is a hardest among all the materials in our world?
by preeti.chary 5 years ago
can diamonds be set in 22 carat gold or is it too soft to support diamondi heard diamonds r set in 18 carat gold only.and have a doubt if i'm being cheated whn a jeweller tells me its a 22k gold wid diamonds set
by HubPages 6 years ago
Antique Diamond Ring
by your cybersister 3 years ago
What do you think is the hardest thing about being a woman?And what do you think is the best thing about it?
by Christin Sander 6 years ago
What is your favorite stone and why?My personal favorite is Opal. I love the rainbow effect and how the stones pick up the light. I also just love the energy of that particular stone. It happens to be my birthstone also, but even if it wasn't I would love them.
by ExpectGreatThings 5 years ago
What was your hardest year of marriage? And why?
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