Gems and Precious Stones

Insofar as gems are concerned, there are several semi-precious and outright fake objects that can be 'alternatives' to a diamond. Quartz, white sapphire, zircon, moissanite, and glass.

Insofar as industrial use for diamonds -- about 80% of all diamonds mined are industrial diamonds, there are no natural substitutes. However, there are man-made, lab-created alternatives: man-made diamonds.

The four major countries that hematite can be found are Italy, Brazil, England and Australia. In the United States, Michigan and Minnesota are the two major states that hematite is located. Other states include New York, Wyoming, Alabama, Pennsylvania, Colorado, New Jersey and Missouri.

No. However, ruby is the gemstone version of red corundum. Any other color of corundum is considered a sapphire and it does come in white. So you are really describing white sapphire.

The diamond shape with the heart and the G are the logo of the company who made the piece. 14K means 14 karats. Karats are how gold is measured. the 14 means that the piece is 58.33% gold and 41.67% alloy.

If you buy pearls you shouldn't have bad luck. Enjoy the pearls and wear them with pride.

The code for gems could be added in many ways many people use the following way: lets suppose the stone is tanzanite and it weighs 5.5 ct and is 4*6*3.5 and the date is 24-06-2009. so we will enter tan5.5-24-06 tan4-6-3.5-5.5 DSC10062tan5.5 or 5.5-4-6-3.5tz

AL2O3 + Fe and/or Ti

The basic material of sapphire is known as corundrum - a colorless material formed from aluminum oxide. It is the addition of Titanium and Iron during the formation of the sapphire crystals that produces the beautiful blue of this corundrum variety.

A great place to get a variety of hot fix and flat back Swarovski rhinestones is online. They have some of the best prices I could find and everything you need to get your rhinestone project done. I always receive my items very quickly and they are always willing to work with me on finding new colors.

There are many ways to tell glass from semi precious stone beads. EHow has published an article on how to tell glass from semi precious stone beads, which describes how to inspect the sound, texture, bead, and cut of the specimen.

Finding a natural pearl inside of an oyster in the wild is very rare. You can purchase small, natural pearls, but they are very expensive because they are so rare.

In the wild, only about 1 in 10,000 oysters have a pearl.

The majority of pearls are farmed, and these are very common.

Cameos are often made from materials such as agate, shell, or coral. The most traditional gemstone used for cameos is onyx, which provides a black and white contrast perfect for carving intricate designs.

In gold, a karat is a measure of purity. 24 karat gold is pure gold, while 18 karat is 75% gold.

For gems, a carat measures the mass of the gemstone. 1 carat is 0.2 grams.

Agate is a form of silicon dioxide.

The structure of synthetic diamonds is the same as natural diamonds, consisting of a lattice structure of carbon atoms arranged in a cubic crystal system. However, there may be slight differences in impurities or growth patterns that can distinguish them under certain conditions.

a pristine deep pool of moving water

The largest cut tanzanite in the world is the Ophir Tanzanite.

The Ophir Tanzanite weighs 508.06 carats and has been recognized by GUINNESS WORLD RECORDS™ as the largest cut tanzanite in the world.

The Ophir Tanzanite is owned by Ophir Collection, LLC.

Diamonds are made artificially by simulating the conditions deep in the mantle where natural diamonds are formed: very high pressure and very high temperature. Any source of carbon can be used (I saw a documentary on making diamonds once where they used peanut butter to provide the carbon).

Synthetic diamonds will always be less expensive than natural diamonds, therefore the jewelry business now requires natural diamonds that have been cut to have LASER etched identification codes to prove authenticity. This only became necessary after techniques were perfected to reliably get colorless synthetic diamonds.

A conflict begins usually when different sides disagree. This can lead to dispute and conflict.

It is unlikely that anyone in the world will know since opals have been used for many, many, many years as jewelry and such. I don't know where the oldest opal has been found but some simple research should clear up some misconceptions. DIMC

Titanium is often used to enhance colors in gemstones, such as in sapphires and quartz. In the case of sapphires, titanium can create a range of vibrant colors, such as blues, yellows, and greens, while in quartz, titanium can produce a variety of hues including blues, yellows, and pinks.

Sapphires, rubies, emeralds, diamonds, tanzanite, topaz, amethyst, agate, quartz, pearl. They come in a diversity of colours, cuts and sizes. The more rare the gemstone, the higher the demand.

Pave' Is actually a setting. It's when many stones are set very closely together, covering a surface (such as a large bead, metal, etc.). It comes from the French word meaning Paved or Cobblestone.

Yes, a raw gem-quality diamond is a clear stone which may have a colour cast, and also may appear to be a pyramid shape or two pyramids joined at the base if you find one in its perfect natural shape.

Industrial diamonds however are not clear and represent about 80% of all diamonds mined. There is no standard shape, size, colour or clarity for an industrial diamond.

Diamonds are formed from carbon.

In relation to diamonds - the term is commonly referred to as 'the four Cs'... Carat, Clarity, Cut & Colour.

You may have found it in the back of a drawer somewhere - a plastic bag with a green stone inside, probably opaque or nearly so, labelled "Tamiz Emerald", possibly accompanied by a certificate of authenticity from "GCI" in New York.

These stones were sent out as prizes in a dodgy mail order sweepstakes during the 1980's. Technically, they're emeralds, but so poorly cut and full of inclusions as to be practically worthless.