| Facets -
| The actual Cut Polished Angles & Slants of the outer surface of a Diamond. All Facets should be Symmetrical and Exact. Read: All about Facets! |
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| Fancy Color -
| Fancy Colored Diamonds are Diamonds graded below a Z+ on the G.I.A. Color Grading Chart. The Hope Diamond is a Fancy Colored Diamond. |
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| Fancy Shapes -
| Fancy Shapes are all Diamond Shapes other than Round. Fancy Shapes are: Marquise, Princess, Pear, Oval, Trilliant, Baguette, Heart, and more. |
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| Feathers -
| Feathers are small Inclusions that are found inside a Diamond. These Imperfections can sometimes look like the Feathers of a Bird. |
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| Finish -
| Can mean 2 things: The Polish & Finish of a Diamond. Or, the surface of Gold, like Polished, Sand Blasted, Diamond Cut, Hammered, Satin. |
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| Fire -
| Fire is the name given to flashes of Light that emit from a Diamond that are bent and form all the colors of the Rainbow. Fire is Colored Light! |
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| Fish-Eye -
| The effect a Diamond gives off when the Depth of the Diamond is too Shallow. A circle appears around the inside that looks like a Fish Eye. |
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| FL -
| FL is short for Flawless! Flawless is the highest Clarity Grade given to any Diamond. It is free from any Internal Inclusions or External Imperfections! |
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| Flawless -
| (FL) Flawless is Clarity Perfection in a Diamond! Being the highest Clarity Grade on the Clarity Chart, it's free from any Imperfections what-so-ever! |
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| Fluorescence -
| A crazy Optical Property that Diamonds have with a reaction to Light. Fluorescence makes a Diamond look foggy and often Glows in the Dark. |
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| Flush Setting -
| Flush Settings are when Diamond or Gemstones are set Flush or Level in the Mounting. Sometimes called Burnished Settings or Gypsy Settings. |
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| Fracture Filled -
| Fracture Filling is a process where a Laser Beam is drilled down into an Inclusion, which is Dissolved out, then filled with a clear substance. |
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| FreshWater -
| Pearls found in Freshwater. F/W Pearls are great because they are Natural, look wonderful in Jewelry and Necklaces, and are very Inexpensive! |
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| Fool's Gold -
| Fool's Gold is great Mineral called Pyrite that got it's name because most miners confuse the Shiny Metallic Rock for Gold! Read: Fool's Gold! |
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| Full Cut -
| A name given to a small Diamond that has all 58 Facets to it. Some small Diamonds are called Single Cuts and have only 18 Facets! |
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| Garnet -
| The official Birthstone for the Month of January. Garnets are a wonderful Red-Orange-Rust hue that often resembles fine Wine! |
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| G.I.A. -
| G.I.A. is short for the Gemological Institute of America. G.I.A. is the company that devised the well known 4 C's Diamond Grading System. |
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| Girdle -
| A Girdle is a Smooth, Faceted, or Rough Edge that goes around the Outer Portion of the Diamond. The Girdle is the Widest part of a Diamond. |
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| Gold Allergies -
| An Allergic reaction to Gold. Most people with Gold Allergies are not Allergic to the actual Gold itself, but to the Nickel Alloy mixed with the Gold. |
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| Golden Jubilee -
| A name given to the 50th Wedding Anniversary because Gold is one of the official Gifts to give for such a momentum occasion. |
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| Grading System -
| The Grading System is actually the 4 C's Diamond Grading System, that refers to the Diamond's Cut, Clarity, Color and Carat Weight! |
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| Gypsy Setting -
| Same as Flush Setting. Where a Gemstone is set flush and even with the mounting using no prongs, beads or other forms of holding in the stone. |
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| Head -
| The portion of the Ring or Jewelry that holds the Diamond or Gemstones. Heads often have 4 or 6 Prongs and are Soldered onto the Mounting. |
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| Heat Treated -
| Heat Treated refers to a treatment used to help enhance Color in a Diamond or Gemstone. Often used with Blue Diamonds or Blue Topaz. |
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| I Clarity -
| I Clarity is the lowest Clarity Grade given to Diamonds. I Clarity has eye-visible Inclusions, and is broken down into the I1, I2 and I3 Clarity Range. |
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| Ideal Cut -
| Marcel Tolkowsky devised a Cut of Diamond that maximized both the Brilliance and Fire of a Diamond. Ideal Cuts are exceptional & expensive. |
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| IF -
| IF stands for Internally Flawless. IF Diamonds have no Inclusions inside the Diamond, but can have some blemishes on the Diamond's surface. |
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| Imperfections -
| Imperfections are Identifying Marks or Inclusions that are found inside or outside the Diamond. Imperfections are what Clarity is Graded upon. |
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| Inclusions -
| Same thing as Imperfections. Any Flaws that can be seen either with the naked-eye or under 10x magnification. Read: Clarity and Inclusions! |
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| Inscriptions -
| Inscriptions are Laser Etched Numbers & Letters (Report #) that are laser burned into the Girdle of a Diamond. Often for Identifying the stone. |
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| Karat -
| Term given for the amount of Gold in a particular Metal. 14 Karat (14kt) is 14 parts Gold and 10 parts Alloy. 10kt Gold is 10 parts Gold & 14 parts Alloy. |
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| Lab Grown -
| A term given to Gemstones that are not found in Nature but are actually grown and processed in a Laboratory. Moissanite is a man-made stone. |
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| Lapidary -
| The name given to the person that actually cuts the Diamonds and Gemstones. Lapidarists often take years to cut a single Diamond. |
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| Laser Drilling -
| A procedure where a Laser Drill Hole is tunneled into a Diamond to dissolve out any Imperfections or Flaws. Laser Drilling is a permanent process. |
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| Light Carat -
| A term given to a Diamond that's rounded up. Like a .44 pt Diamond is actually called & sold as a 1/2 Carat Diamond. Read: Light Carat Weights! |
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| Loupe -
| A hand-held tool that Jewelers use to view and grade Diamonds and Gemstones with. Jeweler's Loupes are often 10x Magnification. |
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| Luster -
| Often referred to as the shine and reflection coming from the body of a Pearl. The more the Luster, the better the shine and thicker the shell. |
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| Marquise -
| A Shape of Diamond that looks like a Football. It has two pointed sides that help give the Marquise Diamond that great Bow-Tie Effect!
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| Melee -
| A term given to very small Diamonds. Usually small Diamonds are sold in a Melee Package of Diamonds ranging from .01 pt to .18 pts. each. |
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| Mohs Scale -
| The Mohs Scale is a Scale that rates the hardness of Gemstones and Minerals. Diamond is the highest on the scale being a 10. Gold is 2.5 |
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| Moissanite -
| Moissanite is a man-made Gemstone that looks similar to a Diamond, but has more Fire and a Yellow Cast to it. Read: Moissanite or Diamond? |
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| Moonstone -
| Moonstones are from a family of rock called Feldspars. Ranging in many wonderful Colors, Moonstones are known for their great healing powers! |
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| Mounting -
| Name given for the Setting, Ring, or Jewelry that Diamonds & Gemstones are set into. Mountings can be Gold, Platinum, Silver, or any type of Metal! |
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More Jewelry Terms, Definitions, Words and Meanings, coming up... |
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