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Fine Jewelry University Articles matching: “Black hills gold rings”

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Fine Jewelry University (Show All FJU Articles)

  1. Nickel in jewelry can cause allergic reactions

    What to Do When Your Ring Irritates Your Skin

    … which can begin hours or even days after contact and may last for several weeks. Some people’s skin even turns black or green when they wear certain jewelry. One of the most common metal allergies is Nickel which is added to pure gold in … a simple discoloration on top of the skin from the metal. Also, tarnish from silver jewelry can rub off and leave a blackish residue. In both cases, the color will easily wipe or wash off. You can avoid this type of discoloration simply …

  2. The different parts of an engagement ring

    Anatomy of a Ring

    … the shank, going as far up the sides as the design and the extent of the wear require. If you are careful with your rings (removing them when doing dishes, cleaning with harsh chemicals, gardening, etc.), the shank may last your lifetime … wires which can wear and break or crack over time. The gallery is also a prime location to see wear caused by other rings (e.g. wedding bands) that are worn next to each other. The constant friction with another ring can actually wear …

  3. Measuring Gold Weight

    The old riddle goes: what weighs more a pound of feathers or a pound of gold? Some say gold because it is heavier. Others say they are both a pound so they weigh the same. Both are wrong. How …Tradition. Gold is not weighed in the ordinary weights. Gold is weighed in the troy measurement system. One ounce of gold is not the same as the ordinary ounce (really called avoirdupois ounce). The best way to understand this is to …. An avoirdupois ounce converts to 28.34 grams approximately. The troy ounce is 31.1 approximately. You say, “Aha! Gold weigh more, so a pound of gold weighs more than a pound of feathers.” Unfortunately there is one more piece of the …

  4. Group of loose emerald gemstones

    Gem in the Spotlight: Emerald

    … found. What sets trapiche emeralds apart from other emeralds is their unique growth habit, featuring six black spokes radiating from a hexagonal core. This distinctive pattern is believed to form due to interruptions in the crystal growth…and Mrs. O. Roy Chalk in 1972 and can be seen on display at the National Museum of Natural History in a platinum and gold ring surrounded by 60 pear-shaped diamonds. According to workers at the Muzo mine in Columbia, it is one of the …

  5. A collection of jade jewelry and loose gems

    Gem in the Spotlight: Jade

    …high polish. Nephrite is commonly found in a darker olive green color but can also be very light green, orangey-red, black, and yellowish green. Jadeite can come in many different colors including pink, purple (often called lavender jade…

  6. Frequently Asked Question about Jewelry

    … Gem Laboratory in the world, does not recognize SI3 grades. What is a Comfort Fit Ring? Many diamond wedding rings are available in a comfort-fit style. Comfort-fit engagement rings have extra metal to make the inside of the band slightly… comfortable fit. This might result in the feeling that the ring feels “looser” in the finger. Diamond engagement rings with a comfort fit design have an oval cross section with very smooth rounded edges, giving them the comfort-fit name…

  7. A group of yellow gold chains of different kinds of a blue background

    Types of Necklace Chains

    … bump up their cost over similar styles of the same thickness. Snake Chain Snake chains are comprised of small snug rings that form a smooth circular tube shape. These chains are more flexible than the herringbone and omega but are still … remain visible even after the repair. Snagging – Although they look like one, continuous piece, the tightly packed rings can actually catch on hair and other fibers during daily wear. Serpentine Chain (Cobra, Boston Link, S-Link, C-Link, …

  8. Get more cash for your gold and jewelry from Arden Jewelers

    How to Sell Your Jewelry

    …sells. Sales are not guaranteed. Which on line auction to use is a critical choice. The large auctions have many offerings and sales but it is easy to get lost in all that activity. Selecting the best category is another challenge. If you …are unsure of how to clean the jewelry or gem, let the professionals do it. Here are some cleaning tips. Never clean gold and gems in chlorine. Ammonia based cleaning products are used throughout the jewelry industry, but they can damage …

  9. A single platinum wedding band

    Platinum

    …. These qualities of platinum are equivalent to the ideals of eternal true love. All over the world, engagement rings, wedding bands and anniversary rings made in platinum symbolize the everlasting endurance of love. Platinum is pure, an …History of Platinum in Jewelry Platinum has been used in jewelry only since the 19th century. So platinum engagement rings are fairly recent. The Italian-French physician Julius Caesar Scaliger discovered Platinum in 1557. In 1590 Spanish …

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