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Gems and Precious Stones

Gems and precious stones are cut or polished minerals used to create jewelry, accessories and other ornaments. Some of the most popular precious stones include amethyst, aquamarine, diamond, emerald, opal, ruby, sapphire, topaz, and turquoise.

1,193 Questions

What is name of pink stone?

The name of the pink stone is pink tourmaline, also known as rubellite. It is a gemstone that ranges in color from pale pink to deep red.

Can an employer make you remove your wedding rings?

It is possible for an employer to request that you remove your wedding ring for safety reasons in certain work environments where jewelry poses a risk, such as manufacturing or healthcare. However, they should provide valid reasons and consider alternative options before asking you to do so.

How much is 12 carat marquise worth?

It depends on which gemstone you are evaluating. Your local jeweler may be able to help you.

However, if you believe that the stone is a diamond, sapphire, emerald or ruby, you are best advised to take the stone to a gemologist and pay for a certificate, so that you know enough about the stone to care for it, insure it and wear it in good health.

What is more expensive tanzanite or dark blue sapphire?

Tanzanite is typically more expensive than dark blue sapphire due to its rarity and unique color. Tanzanite is found only in Tanzania, while sapphires are available in various colors and locations, leading to a broader range of price points.

What transparency does an Opal have?

Opal is known for its play-of-color, which is a unique iridescence that displays a rainbow-like spectrum. This effect is caused by the diffraction of light as it passes through the tiny spheres or layers of silica within the stone. Opal's transparency can range from opaque to translucent, with the most prized opals being the ones that exhibit a high level of play-of-color against a transparent or translucent body.

Why are precious stones heat treated?

Precious stones like sapphires and rubies are heat treated to enhance their color and clarity. This process can improve the overall appearance of the gemstone and make it more desirable for use in jewelry.

What does tjc engraved in a ring mean?

TJC could be the initials of a person's name, a company name, or a symbol that has special meaning to the ring wearer. It is recommended to ask the person who owns the ring about the significance of the engraving.

What are the colors jade comes in?

Jade can come in a variety of colors, including green, white, lavender, yellow, and red. The most prized color is a deep, vibrant green known as "imperial jade."

WHAT DOES ads 14K dc mean on a diamond ring?

"14K" refers to the purity of the gold used in the ring, indicating that it is 14 karat gold. "DC" likely stands for "diamond cut," which signifies that the diamonds on the ring are faceted or cut in a way that enhances their brilliance and sparkle.

What is a 4 carat piece of brown topaz worth?

The value of any precious stone or gemstone will vary widely according to quality.

You will need to take your topaz to a qualified and registered valuer, who will be able to issue a certificate of valuation.

What is the cost per carat for rough emeralds?

The cost per carat for rough emeralds can vary widely depending on factors such as quality, size, color, and clarity. On average, rough emeralds can range from $5 to $500 per carat, with high-quality stones commanding a premium price.

What is another way to use graphite?

If put under enough pressure it will turn into diamond.

Pencil-lead is graphite these days, and some companies grind it into a powder for use as a lubricant.

Where is opal normally found?

Most of the world's opal comes from Australia.

Opals are mined in three states of Australia.

South Australia

  • Coober Pedy
  • Andamooka
  • Mintabie
Queensland
  • Yowah (past Quilpie)
  • Winton
  • Opalton
New South Wales
  • Lightning Ridge
  • White Cliffs

What semiprecious gemstones are in cuba?

I've been trying to find that out myself. Since Cuba produces copper, it stands to reason that malachite, azurite, turquoise and other gems associated with the presence of copper may be found there, especially in the eastern portion of the island. But I can't find any confirmation of that.

How much is an 18kgp white pearl is worth?

The value of an 18 karat gold plated white pearl can vary depending on factors such as size, quality, and market demand. Generally, a high-quality 18kgp white pearl can range in price from $50 to $200. It's best to get an appraisal from a jeweler to determine the exact value.

Where can you find precious stones?

Precious stones can be found in various places around the world, including mines, rivers, and mountain regions. Common sources for precious stones include regions in Africa, South America, Asia, Australia, and parts of Europe. Additionally, some precious stones are also found in meteorites.

Is Topaz crystal?

From Encylopedia Britannica

  • topaz composition (in topaz (mineral))

    Topaz is an aluminum silicate containing fluorine and has a chemical formula of Al2(F,OH)2SiO4. It is formed by fluorine-bearing vapours given off during the last stages of the crystallization of igneous rocks.

Is cubic zirconia man-made or a natural stone?

Cubic zirconia is a man-made synthetic gemstone and not a naturally occurring mineral. It is created in a laboratory to mimic the look of diamonds.

Can you find gemstones in the UK?

Yes, gemstones such as Scottish pearls, Whitby jet, and Blue John fluorite can be found in the UK. However, they are relatively rare compared to other countries with more abundant gemstone deposits.

Is the hearts of fire diamond a fragile diamond?

No diamond is 'fragile' unless it's improperly cut.

Diamond has a natural four-way cleveage based on its crystal lattice structure, and unless the natural cleavage is protected by its cut -- and most are -- it could fracture.

What does CW mean stamped on sterling silver?

The "C" of the "CW" is actually a half moon and was one of the marks used by Watrous.

Jewelery from Colonial Williamsburg is marked CW

Where can you buy a lapis lazuli necklace?

I would suggest eBay or just type i Google. I recently bought the cutest ring, real silver, real topaz, for 16 dollars and it's very good quality.

if you want at hot topic they have the salvator rings, and one of them is on a chain.

Does pukhraj wear in middle finger?

Yes, yellow sapphire (pukhraj) is often recommended to be worn on the index finger for best results in astrology and gemstone therapy.

What is a mahaleo ruby?

Mahaleo ruby is a fissure filled stone. It is a cracked ruby that has been filled in with lead glass that makes it so it is unable to be cut in its natural state. So it can be sold at a cheaper value.