Nature of diamond ring

Fold chemical composition
Pure diamonds are the only gemstones known to be composed of a single chemical element -- carbon.
folded atomic structure
Every four carbon atoms surround a carbon atom and are bonded together by covalent bonds sharing electrons, and the four carbon atoms are bonded at the same angle, and the bond length is extremely short (0.154nm), so diamond is the hardest substance known.
Folding hardness
With a Mohs hardness of 10, diamond is the hardest known substance. The Mohs hardness is just the order of hardness and does not represent the actual hardness. For example, the difference in hardness between diamond (10) and corundum (9) is greater than that of corundum (9) and talc (1).
Fold Differential Stiffness
The hardness of diamonds is not all the same. On the same diamond, the hardness in some directions is slightly stronger, and the hardness in other directions is slightly weaker. The cutting and grinding of diamonds is to take advantage of this point. Use the harder direction of the diamond to grind the softer direction of the other diamond. Only diamonds can cut diamonds.
folding stability
Diamonds are unaffected by acids or oxidation under normal conditions.
folding toughness
Diamonds have average toughness and are easily damaged by bumps.
folding cleavage
A diamond has four sets of complete cleavages, and in the event of a bump, the diamond is likely to fracture along four directions first.
Folding density
The density of diamonds is 3.52 grams per cubic centimeter, and the specific gravity is 3.52 (in fact, the density is the weight of diamonds per cubic centimeter, and the specific gravity is the unit removed).
Folded Conductivity
The purer the diamond, the more insulating it is. But there are two exceptions to the conduction of diamonds, one is diamonds containing boron (boron causes blue, forming blue diamonds, people in the industry guess that the famous blue HOPE diamonds should conduct electricity, but no one has verified); the other It is a diamond with a lot of metal inclusions.
Folding thermal expansion
Diamond has low thermal expansion and is less affected by sudden temperature changes.