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Fine Jewelry University Articles matching: “Heart shaped gems”

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Fine Jewelry University (Show All FJU Articles)

  1. Three loose rubies in a row triangle oval and pear shaped

    Gem in the Spotlight: Ruby

    …human history, rubies have been the most prized gemstone. But, what is it about this red gem that has captivated our hearts and minds for so long? Is it ruby’s color? It’s rarity, and thereby its high cost? Or, is it something deeper? … is an extremely durable form of aluminum oxide with a Moh’s hardness of 9. This makes ruby one of the hardest gems commonly used in jewelry second only to diamond (which has a Moh’s hardness of 10) and moissanite (which is in between). …

  2. Caring for and Cleaning Your Jewelry

    … metals. This will take away the shine. Ammonia-based cleaners clean diamonds and gold well but they may hurt other gemstones. It is also not a good idea to soak jewelry for very long in ammonia-based cleaners. Some anti-bacteria cleaners…professions especially). It is safe to use an ultrasonic cleaner with diamond jewelry. Ultrasonic’s can damage other gemstones, know for certain it is safe to use. Ethyl alcohol is good for rinsing diamonds because it evaporates so …

  3. Early attempts at making lab grown diamonds

    How Are Lab Grown Diamonds Made?

    … so making artificial carbon crystal was the problem of lab grown diamonds. For decades, manufacturers of synthetic gemstones tried growing diamonds like they grew rubies, sapphires, and emeralds. It failed. Then they had the idea to grow…, more modern cubic and split-sphere presses have been introduced which are more efficient, and larger, more perfect gems are being produced. As of the time of this writing, the largest gem quality, faceted, lab grown diamond has been …

  4. Evaluating inherited estate jewelry can be tricky

    How to Value Inherited Jewelry

    …, brand, market demand, or other factors. One quick warning, many “cash for gold” businesses do not pay for the gems. So, their offer can be significantly lower than even the intrinsic value of a piece. We have even heard of cases where a… with a one carat diamond and $50 in scrap gold was valued at $50 by these operations. The intrinsic values for the gems are based on the cash wholesale price of the gem minus any cost for re-cutting or re-polishing the gem if it is worn …

  5. A group of alexandrite jewelyr and loose gems shown in different light to demonstrate color change

    Gem in the Spotlight: Alexandrite

    … one of the most magnificent gemstones that exists. Its almost magical ability to change color has captivated our hearts and minds for generations. Alexandrite is one of June’s birthstones (along with moonstone and pearl) making it a great… than sapphire, emerald, or even ruby, alexandrite has been known around the world as one of the most sought-after gems for the better part of 200 years. But, what makes this stone so special? Gemology of Alexandrite Alexandrite is the …

  6. Collection of sapphire jewelry and loose sapphire gemstones in many colors

    Gem in the Spotlight: Sapphire

    Few gems capture the imagination as does sapphire. Sapphire’s beauty inspired people to wonder. Ancient cultures had many … a giant sapphire whose reflection gave the sky its color. Ancient priests and sorcerers honored sapphire above all gems, for this stone enabled them to interpret oracles and foretell the future. Symbolizing truth, sincerity and tradition… her spouse had been unfaithful. Sapphire refused to shine when worn by the wicked or impure. Known as the celestial gemstone, the sapphire has been treasured for thousands of years. Known as the celestial gemstone, the sapphire has been …

  7. The Birthstones

    … midst of cold, white (valley fog) and at times stark surroundings are rewarded with one of the most varying birth gemstones, Garnet. Garnet’s pizzazz energizes the gloomiest day. Garnet varieties brighten the world in colors of yellow to…was considered to be a strong antidote against drunkenness, which is why wine goblets were often carved from it! The gemstone still symbolizes sobriety. The Amethyst was credited with many other extraordinary attributes. Among its reputed…

  8. Old mine cut diamond example

    The History of Diamond Cuts

    … off the octahedral shape of the natural diamond. The French cut has just 9 crown facets, with the square or rhombus-shaped table facet diagonal to the square of the crown. At the four sides of the table are four triangle facets that point … round brilliant have come and gone each claiming to surpass it in some way. None have captured our imagination or hearts the way the modern round brilliant has. It has been and remains the most frequently chosen diamond cut for engagement…

  9. Three loose garnets red organge and green

    Gem in the Spotlight: Garnet

    … midst of cold, white (valley fog) and at times stark surroundings are rewarded with one of the most varying birth gemstones…Garnet. Garnet’s pizzazz energizes the gloomiest day. Garnet varieties brighten the world in colors of yellow … garnet lantern to navigate the Ark at night. The ancient world is full of praise for the carbuncle, the glowing red gemstone we now know as garnet. Early scientists named garnet from the Latin granatus, which means ‘seedlike’ because …

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