Diamond is the hardest mineral known. About 75% of diamonds mined are used by industry and only 25% qualify as gemstones. Gemstones are measured according to their clarity, colour, cut and carat weight.
Yes, if it is a gem-stone quality diamond.
Depends on the quality of the diamond in question.
The 'best quality diamond' is the diamond that you can afford. If you want an investment quality diamond -- which some consider the 'best', look for a fancy intense coloured or a D colour diamond, or a Flawless or Internally Flawless diamond with an excellent cut in the shape and carat size that you want. Your trusted local jeweler can sell it to you.
One can find information on diamond quality by going to the To Diamonds website. The website has information on how to buy diamonds and what to look for in a diamond.
Your answer depends on the quality and number of diamond(s) set in the metal and the quality of the metal.
Facets on a diamond can be one measure of a stone's quality. For instance, if the facets are aligned well then you probably have a quality cut.
Not necessarily. The speed of the diamond tester's beeping indicates the thermal conductivity of the stone, not its quality. A higher quality diamond may or may not beep faster, as factors like size and shape can also affect the speed of the beep.
The value of a diamond depends on the quality of a diamond, which is determined by the diamond's attributes or its 4 C's (which include: color, clarity, cut and carat weight). Generally speaking, the higher the quality of the diamond, the higher its value will be.
Diamond transparency -- also known as clarity -- varies from none to flawless, depending on the quality of the diamond.
There are several ways to check the quality of your diamond. You can get the GIA diamond appraised to prove its authenticity.
Marquis is the name of a shaped cut of a gem-stone quality diamond.
Your answer depends on the quality of the diamond you're buying/ selling.