Preferably as few as possible.
Diamonds are formed in a crystalline structure from carbon. Not all crystals are formed from carbon; not all crystals are diamonds.
Diamonds are one variety of thousands of crystals.
Swarovski earrings are not real diamonds, therefore there is no concern about conflict free diamonds. Swarovski jewelry is made from crystals, not diamonds.
a Carbon lattice structure (Carbon Atoms)Diamond is made of carbon atoms.
Crystals and pure or uncut Diamonds and coral reefs.
No they are crystals of an allotrope of Carbon.
Salt crystals may reflect light like a diamond, but salt crystals are not diamonds.
It depends on the size of the crystals and the material in which the crystals. Diamonds are carbon crystals that are obviously expensive when they are large.
Crystals of many different minerals can be found in California. California's most famous mineral would perhaps be tourmaline, found in huge pink crystals at the Himalaya Mine. Diamonds are commonly found in the placer gold mines of California, but are generally quite small.
Natural black diamonds are called Carbonado. From Wikipedia: "Carbonado diamonds are typically pea-sized or larger porous aggregates of many tiny black crystals." Read more, below.
yes, it is
Diamonds come from deep within the earth, yes, a natural source.