Precious Metals & Gems

A:

Platinum weighs more than silver and is much denser. Platinum also has a much whiter and shinier appearance, where as silver appears to have a duller gray appearance. Platinum is much more expensive than silver, because it is more difficult to extract it from the ground,

See Full Answer
Filed Under:
  • What are the names of green gems?

    Q: What are the names of green gems?

    A: The most well-known varieties of green gemstones are emerald and jade, both of which have high values for translucence and vivid, rich colors. A more uncommon green gem is the green diamond. Alexandrite is an interesting green gem that can also shine pink, yellow or red depending upon environmental lighting.
    See Full Answer
    Filed Under:
  • What is a canary diamond?

    Q: What is a canary diamond?

    A: A canary diamond is a bright yellow diamond. Though people think of a clear or white diamond when they think of a quality diamond, colored diamonds can be even more expensive.
    See Full Answer
    Filed Under:
  • Where in the world was gold first discovered?

    Q: Where in the world was gold first discovered?

    A: Gold was first discovered in Asia Minor around 6000 BC. One area where gold was found in Asia Minor was ancient Lydia, which is modern-day Turkey.
    See Full Answer
    Filed Under:
  • What are Olympic gold medals made of?

    Q: What are Olympic gold medals made of?

    A: Olympic gold medals are required to be made of sterling silver covered with at least 6 grams of pure gold, according to About.com. Each gold medal must have a diameter of at least 60 millimeters.
    See Full Answer
    Filed Under:
  • What is a diamond's streak?

    Q: What is a diamond's streak?

    A: "Streak" is the word used to describe the color of a diamond when it is reduced to powder form. It has nothing do do with an actual streak.
    See Full Answer
    Filed Under:
  • How is nickel obtained?

    Q: How is nickel obtained?

    A: Nickel has to be mined from ore. It is mined in 23 countries around the world and refined in 25 countries. Some of the countries where nickel is easiest to obtain are Canada, Russia, Cuba, China, Australia and Greece. Major countries that refine or smelt nickel include France, Japan, Norway, Finland and the United Kingdom.
    See Full Answer
    Filed Under:
  • What is the difference between gold-filled jewelry and gold-plated jewelry?

    Q: What is the difference between gold-filled jewelry and gold-plated jewelry?

    A: Gold-plated jewelry consists of a lower-quality base metal coated with a very thin layer of gold through a chemical process, while gold-filled jewelry has a thicker layer of gold bonded to a base metal through heat and pressure. Although both gold-plated and gold-filled jewelry consist of a base layer covered with gold, they differ in the process used to attach the gold and the thickness of the gold.
    See Full Answer
    Filed Under:
  • What is gold overlay?

    Q: What is gold overlay?

    A: Gold overlay is a thick coating of gold that jewelers lay over metal jewelry. The process has been around for thousands of years, and jewelry that undergoes this process is more valuable than other types of jewelry that has gold added to it in a different way. In gold-plated jewelry, the gold is plated on top of the metal and doesn't last as long as gold overlay.
    See Full Answer
    Filed Under:
  • How can I tell real turquoise from fake?

    Q: How can I tell real turquoise from fake?

    A: To determine whether or not turquoise is authentic, check for uniform color throughout the piece, opaqueness and low shine. Fake turquoise is often made from pale stones injected with dye, which appear overly shiny, clear and streaked, according to BJBead.com.
    See Full Answer
    Filed Under:
  • What does DWT stand for?

    Q: What does DWT stand for?

    A: The acronym "DWT" stands for "diamond weight total," which means the total weight of all diamonds comprising pieces of jewelry, such as rings, bracelets, pendants, watches and necklaces. Due to deviations in diamond weights, some jewelers use other notations, including "CWT" for "carat weight total" and "CTW" for "carat total weight."
    See Full Answer
    Filed Under:
  • Where does jade come from?

    Q: Where does jade come from?

    A: Jade is derived from a naturally occurring mineral called jadeite, which is collected in locations all over the world, from Alaska to Guatemala and Central Asia. Jadeite comes in several different colors and forms, and it is only known as jade when used as a gem for carving or jewelry.
    See Full Answer
    Filed Under:
  • How hard is a diamond?

    Q: How hard is a diamond?

    A: Diamond is the hardest mineral on the Mohs scale of mineral hardness, with a rating of 10, and is four times harder than the next mineral on the chart, corundum, of which sapphire and ruby are varieties. The Mohs scale is the most common system used for this measurement. It is a relative scale, grading the comparative hardness of 10 common minerals and their resistance to scratching.
    See Full Answer
    Filed Under:
  • What is a solitaire diamond?

    Q: What is a solitaire diamond?

    A: A diamond solitaire refers to any piece of single-diamond jewelry, though it often refers to engagement rings. Round shapes are popular for solitaires, though many cuts and colors are appropriate for such jewelry, according to About.com Jewelry expert Carly Wickell.
    See Full Answer
    Filed Under:
  • How are rubies formed?

    Q: How are rubies formed?

    A: According to the Encyclopaedia Britannica, rubies are formed when the mineral corundum is exposed to chromic oxide in metamorphic environments between 1148 to 1238 degrees Fahrenheit. There are also two prominent methods of making synthetic rubies in a laboratory. The flame-fusion method produces a gem with notable imperfections. The flux-growth method produces a synthetic ruby that is nearly indistinguishable from a real one.
    See Full Answer
    Filed Under:
  • Where do Swarovski crystals come from?

    Q: Where do Swarovski crystals come from?

    A: Swarovski crystals are machine-cut crystal beads made in Austria. Daniel Swarovski developed the formula in the 1800s. Swarovski crystals are silver in color and are used in necklaces, rings, watches, earrings and bracelets.
    See Full Answer
    Filed Under:
  • How can one tell if something is real gold or gold plate?

    Q: How can one tell if something is real gold or gold plate?

    A: The easiest way to tell if something is real gold or gold plate is by holding a magnet up to the piece and waiting for the metal inside the piece to attract to it. If the piece is gold-plated, it is instantly connected to the magnet. If the piece is solid gold, it does not connect.
    See Full Answer
    Filed Under:
  • Does silver-plated jewelry tarnish?

    Q: Does silver-plated jewelry tarnish?

    A: Since sterling silver is an alloy, it tarnishes when it comes into contact with sulfur particles, which are found in abundance in the air. For this reason, all sterling silver jewelry tarnishes, even silver-plated jewelry, according to Simply Sterling of Colorado. Lotions and perfumes may speed up the process.
    See Full Answer
    Filed Under:
  • What are the common diamond cuts?

    Q: What are the common diamond cuts?

    A: The most common diamond cuts, as of 2014, include round, emerald, princess and radiant. A diamond’s cut is normally determined by the size and shape of the original, rough stone.
    See Full Answer
    Filed Under:
  • What type of diamond cut is the most expensive?

    Q: What type of diamond cut is the most expensive?

    A: Heart-cut diamonds are the most expensive style due to the cost and expertise required to manufacture diamonds in this shape. The process of cutting a diamond into a heart shape is difficult and demands a skilled diamond cutter. A heart-shaped diamond is usually larger than one carat because the cutting process is easier with a bigger diamond.
    See Full Answer
    Filed Under:
  • What are diamonds used for?

    Q: What are diamonds used for?

    A: Diamonds are worn as jewelry and used in a variety of industrial applications. Diamond is the hardest natural substance in the world, and stones that are too small or do not have the requisite quality for jewelry mounting are often used as drill bits or ground into abrasive powder. Others become tools used to cut and polish gem-quality diamonds.
    See Full Answer
    Filed Under:
  • What is the difference between platinum and silver?

    Q: What is the difference between platinum and silver?

    A: Platinum weighs more than silver and is much denser. Platinum also has a much whiter and shinier appearance, where as silver appears to have a duller gray appearance. Platinum is much more expensive than silver, because it is more difficult to extract it from the ground,
    See Full Answer
    Filed Under:

Explore Jewelry & Watches