Gems and Precious Stones

Due to the presence of manganese.

Small amounts of ferric iron give quartz its violet/purple color (amethyst). It is found in hollow gas tubes that form in molten basalt.

North Korea's natural resources are coal, lead, tungsten, zinc, graphite, magnesite, iron ore, copper, gold, pyrites, salt, fluorspar, hydropower

Coal,lead,iron ore, copper,gold,sald,etc.

Rubies are mined in Russia, Australia, India, Thailand and The U.S.A, but 95% of rubies are mined in Burma's Valley of the Rubies and these are where the best 'Pigeons blood' rubies are mined.

Emerald,topaz,beryl,diamond. There are various other gemstones which are costly but when combined in a perfect jewelry piece looks beautiful and elegant.

There are various online sites like Fortrove.com and others which are selling beautiful and vintage jewelry at affordable price. You can have a look at the designs into which various gemstones are being fixed elegantly.

The most notable stone of that size, the 3,106 carat rough stone discovered late one afternoon in 1905 in the Premier Mine in South Africa, was given as a gift to the King of England at the time, King Edward VII, on his 66th birthday.

Read more, below.


If your collection of stones simply makes up that total weight, their collected value depends on the cut, the carat weight, the colour and the clarity of each stone.

because like more valuable things they are much more rare and they are very hard to find. many rocks are worthless because you can find them anywhere, but rare ones are expensive because they are much harder to come across.......

.... and because wealthy people like things that shine, sparkle, and have pretty colors.

The most valuable emerald is often considered to be the Rockefeller Emerald, a 18.04 carat Colombian emerald ring that sold for over $5 million at auction. Prices for top-quality emeralds can vary widely based on factors like size, color, clarity, and origin.

Diamonds can be expensive due to their rarity and high demand, which can make them inaccessible to some consumers. Additionally, their value can fluctuate based on market conditions. Ethical concerns related to diamond mining, such as environmental impact and labor practices, are also important disadvantages to consider.

The quality of it being flawless is absolutely correct and should be a first indication. It doesn't take much it just takes a 10x decent magnifier. Another way is the density of the stone. Synthetic in general is denser then a natural stone of the same carat size but sometimes it's hard to compare stones if you don't have a real stone of equal carat size to weigh against. Not always true but this depends on the dealer but a good indication is price. You'll notice a tremendous price difference between synthetic and natural for the given carat size. One other method which should be considered as only secondary is a UV light test. This test use to be better validated but the lab experts of synthetic have gotten much better at perfecting the reddish-purpleish light that comes off a real emerald while under a UV light.

The color

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Fake Emeralds are nearly perfectly flawless. Natural Emeralds normally have flaws which usually show up under magnification. The larger Emeralds usually have more and larger flaws.

But not always. Museum quality Gemstones can be big and flawless.

Currently, most Columbian emeralds are more included than African ones.

There is no direct relationship for the amount of a gemstone as there are multiple factors in assessing value. The four main aspects in assessing the value of a gemstone: color, cut, clarity and carats. The carats refer to the mass of the gemstone, with one carat being equal to 0.2 grams. It is not a direct relationship. All else being equal, a single 10-carat emerald will be worth more than two 5-carat emeralds.

No, the best gemstone a person can buy is tanzanite. This is the rarest gemstone and has the highest quality, they are often found in royal jewels. However they are expensive, you can purchase them from gemstv.com ot the jewellerychannel.com

For one that fits in the palm of your hand is about 30 to 60 $ andthe deeper the purple the more its worth.the much bigger ones are about 1000 -10,000 depending on the size an the deep purple.

The term you query is a weight measurement for gemstones.

One carat equals .2 grams and .0070548 ounces.

The gold coffin of King Tutankhamun was encrusted with various gemstones, including lapis lazuli, turquoise, and carnelian. These gemstones were used extensively in ancient Egyptian jewelry and burial practices due to their decorative and symbolic significance.

it means accuracy class of CT. 5 p means 5 % of composite error will happen till 20 times of current is applied . So CT will follow its rated characterstics upto 20 times current

This is a typical Conan Doyle enigma. The word carbuncle now is generally used in the medical field to describe a type of puss-filled infection under the skin. The carbuncle gemstone from that time is most generally attributed as a red garnet because the word carbuncle means red in gemology. Garnet stones could be almost any color except blue until the first one was found in the 1990s (a century after 'The Adventure of the Blue Carbuncle' was published) while they still have not been found in China. The chemical elements that make the sapphire blue, titanium and iron, make the garnet black, but the chemical element that makes the newly discovered garnets blue is vanadium.

In related notes, there is not, nor ever was, a British noblewoman titled the Countess of Morcar while there is no Amoy River in China, but Amoy is the former name of an island city on China's east coast today known as Xiamen.

just 'diamond'

Where do you want to export ?

Yes, it is very rare!

It is called the Chintamani Stone.

It really depends on the quality. It it has good clarity and can be cut into a nice gemstone, you can value it by the size of the gemstone that could be cut from it. Other factors include the color and any prior treatment of the rough and origin...but clarity is the most important to consider first.