Although Boron is similar to Carbon in its ability to form stable covelantly bonded molecular networks, there are many differences.
For example, while crystaline Boron is very hard - 9.5 on the Moh's scale of hardness, Diamond is, of course, 10 on the Moh's scale.
The short answer: Is Boron a diamond? No.
Another Answer
The Hope Diamond, however, is a large blue-gray diamond currently at the Smithsonian in Washington DC. Its colour is directly attributable to the inclusion of minute amounts of boron within the carbon structure of the stone.
Boron is hardly malleable at all, it is second in hardness only to diamond.
Carbon and boron.
Diamond is an allotrope of carbon which may contain traces of other minerals, such as nitrogen or boron, which give the diamond a colour: yellow or blue, respectively. Diamond is not a compound of anything.
neither its tungsten, a diamond is harder but it is not an element since it is not in the periodic table.
Carbon. Other trace minerals may give the diamond colour, such as boron, which gives a diamond a blue cast or nitrogen, which gives a diamond a yellow cast.
You think probable to boron nitride (borazon); but other nitrides (of titanium, zirconium, vanadium, niobium, etc.) are also very hard. But no one equal the hardness of diamond.
Boron is hardly malleable at all, it is second in hardness only to diamond.
The diamond becomes Blue because of Boron, this microelement is trapped into the diamond lattice. See the link below for other famous Blue diamonds.
This is Boron
Carbon and boron.
steely blue or grey
Boron
boron
The chemical boron is available with the carbon when the diamond forms, rendering the stone blue.
YeS...
Diamond is formed from carbon, and may include minute traces of other elements, such as nitrogen, boron and nickel. These traces can give a diamond colour.
Yes, some diamonds with a blue cast contain trace amounts of the chemical boron, B with an atomic number 5. Famously, the Hope diamond contains boron.