The 'field test' for diamond is extreme hardness. You should be able to mark glass with it.
You can only be certain of your find if you take it to a jeweler, who will use a probe to determine whether or not the stone you've found is an uncut diamond.
The heaviest diamond has the most carats. The heaviest diamond found to date was found in 1906 in South Africa, and it weighed more than 3,100 carats. Physically, it filled the palm of a grown man's hand.
The largest raw diamond ever found fit into the palm of an adult male's hand.
The raw Cullinan Diamond remains the largest raw diamond ever found. It was found in South Africa in 1905 and weighed over 3,000 carats. It filled the palm of a grown man's hand. The original size of the Hope Diamond is unknown, but today it is about the size of a egg, considerably less than the Cullinan.
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Georgia is not known for its raw diamond deposits.
Take the raw stone to a jeweler who can apply a probe to the stone to determine whether or not it could be an uncut diamond.
The Cullinan is the largest diamond ever found. It is 3,106.75 carats. It was found near Pretoria in South Africa.
Uncut diamonds are just as they are found in the diamond mines. Read more about them, and what they become when cut and polished, by following the link, below.
When mined or found, uncut diamonds are called rough or raw diamonds.
The proper words are raw diamond, raw stone, rough diamond, uncut diamond -- all are appropriate.
The Uncut Diamond - 1916 was released on: USA: 4 March 1916
The field test for diamond is hardness. You can take your stone to a local jeweler who can apply a probe and tell you whether or not what you bring in is diamond material or not.
If the uncut diamond is 'registered' it must have been registered for a reason. Its value may be part of this registration process, or not. Any diamond, cut or uncut, is worth whatever a buyer will pay for it.
The largest diamond found was recorded weighing an astonishing excess of 3,000 carats. Uncut, the Cullinan diamond fit into the palm of a grown man's hand.
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Sphalerite is a mineral that can exhibit a greasy luster when uncut. It is a zinc sulfide mineral that can vary in color and is commonly found in ore deposits.