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Optical Crystal Jewelry

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WINTEX OPTICAL/B Brand New Watch With Genuine Crystals - Certificate Available. $261 WINTEX OPTICAL/B Brand New Watch With Genuine Crystals |
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WINTEX OPTICAL/N Brand New Watch With Genuine Crystals - Certificate Available. $261 WINTEX OPTICAL/N Brand New Watch With Genuine Crystals |
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8x Crystal Eye Loupe Jewelry Magnifier for Jeweller $5.99 Description:Doublet lens Eye Loupe made of optical glassCrystal plastic case body.Jewelry Magnifier with 8X power.Eye Magnifier lens diameter is 23 mmThe 8X Magnifier can be used under any environment.Jeweller Magnifier is not only great for jewelers, but also for photographers,printers,scientists and stamp colectors etc.Size: ~4.6 x 3.9 x 3.9cmWeight: 41g |
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Nice Jewelry set - Brand New Stud Earrings With Genuine Crystals Made in 925 Sterling silver Length 8mm, Brand New Necklace With Genuine Crystal Made in 925 Ste $120 Jewelry set - Brand New Stud Earrings With Genuine Crystals Made in Solid 925 Sterling silver Length 8mm, CloseoutBrand New Necklace With Genuine Crystal Made in Solid 925 Sterling silver Length 16in and |
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Silver Amethyst Crystal Beads Lever-Back Earrings $29.95 Silver Amethyst Crystal & Beads Lever-Back Earrings. |
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Kichler 42174CH Crystal Skye 1 Light Mini Pendant in Chrome with Optical crystal $250 Crystal Mini Pendant in Chrome with Optical crystal from the Crystal Skye Collection by Kichler. Dimensions: 11.00 H 6.50 W |
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Split Shank Crystal Titanium Ring $59.95 Split Shank Crystal Titanium Ring. A split titanium design a half bezel set crystal is set in between the opening. Precise Laser Engraving Available Ring Information Titanium Half Bezel Crystal 7.50mm (just over 5/16 inch) Sizes 8 - 12 available |
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Titanium Rivet Crystal Band $29.95 Titanium Rivet Crystal Band. The luxurious industrial look of this band is further accented with replacing rivets with bezel set crystals. The crystals are set at the end of each raised titanium piece. Precise Laser Engraving Available Ring Information Titanium 7mm (just over 1/4 inch) Sizes 8 - 12 available |
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CITIZEN EL1250-11L Brand New Watch With Genuine Crystal - Certificate Available. $185 CITIZEN EL1250-11L Brand New Watch With Genuine Crystal |
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DISNEY 41484 Brand New Watch With Genuine Crystal - Certificate Available. $75 DISNEY 41484 Brand New Watch With Genuine Crystal |
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CITIZEN BA3170-03E Brand New Watch With Genuine Crystal - Certificate Available. $185 CITIZEN BA3170-03E Brand New Watch With Genuine Crystal |
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Three Stone Crystal Titanium Band $59.95 Three Stone Crystal Titanium Band. Three brilliant round crystals are set across this titanium band. Precise Laser Engraving Available Ring Information Titanium Crystal Side Stones 8mm (5/16 inch) Sizes 5-7 available |
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Betsey Johnson - Crystal Drop (Crystal) - Jewelry $35 Zappos.com is proud to offer the Betsey Johnson - Crystal Drop (Crystal) - Jewelry: Command attention wearing these stunning earrings by Betsey Johnson. ; Gold-tone with crystal drops and heart charms. ; Nickel-free leverback closures. ; 1/4 long. ; Width: 11 3 4 in ; Height: 31 1 7 in |
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Black Cable and Titanium Bezel Crystal Ring $29.95 Black Cable and Titanium Bezel Crystal Ring. A solitaire bezel crystal is set in the middle of two rows of black cable cords. The cords add a unique twist to this titanium crystal ring. Precise Laser Engraving Available Ring Information Titanium Solitaire Bezel Crystal 9mm (just under 3/8 inch) Sizes 8 - 12 available |
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Kichler 42173CH Crystal Skye 12 Light Single Tier Chandelier in Chrome with Optical crystal $1440 Crystal Single Tier Chandelier in Chrome with Optical crystal from the Crystal Skye Collection by Kichler. Dimensions: 5.00 H 11.75 W 35.25 L |
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Компаунды с заданными спектральными свойствами
Your Diamond Jewelry Certificate
One of the most unique features of your diamond jewelry is the individual certificate of identity called the diamond grading certificate. Like people (and some pet animals), your stone’s authenticity and individuality is officially confirmed with this certificate.
This is actually a report given by an independent gemological laboratory. There are a number of gemological laboratories which hand out these certificates.
However, only a few are respected by the whole diamond industry. The most well-known are the European Gemological Laboratories (EGL) and the Gemological Institute of America (GIA).
Individual stones
Each diamond is unique. This individual evaluation is strictly for the diamond’s quality, not its value.
The certificate maps out inclusions (imperfections), which are hand-drawn. This authenticates the diamond’s unique identity, since no two stones are exactly alike.
Certificate details
The first information (alongside the issue date of the report) is the Stone ID. This is a unique number assigned to your diamond and registered in a global database.
Next listed is the diamond’s cut and shape. If the shape is different from the standard round brilliant, it is called a fancy shape.
The dimensions are listed down as “largest diameter – smallest diameter X depth” for the round shapes. The others are listed as “length X width X depth”.
The weight is listed in carats, the standard unit of weights used for gemstones. (One carat is 200 milligrams.)
The grain lines reflect irregularities in the crystal structure. These are reported as colorless, white, colored or reflective.
The angles and measurements of the diamond that determine its optical properties are duly noted. Table size, crown angle and pavilion depth affect the stone’s appearance.
The certificate indicates the thickness of the girdle (the outside edge of the stone) relative to the diamond’s size, and whether it is polished or faceted.
The culet (the stone’s bottom point) is listed either faceted or not. If faceted, it is noted relative to the size of the stone.
The grades of the diamond’s finish and polish are noted and described including the symmetry. Color is graded, too, from D (colorless) all the way to Z (yellow).
Symmetry is the arrangement of the stone’s facets (surfaces) and finished angles. Grading reports describe them accordingly, whether they are excellent, very good, good, fair or poor.
The cut is listed as well as the quality of the stone’s clarity. The clarity is the absence of inclusions (blemishes) and graded from “flawless” to “included” based on the size, nature, position and quantity of the inclusions.
The certificate also notes the pavilion depth (distance from the girdle to the culet) which affects brilliance. Deviations from the Tolkowsky ideal cut are also carefully documented.
Most diamonds “fluoresce” (showing whitish, yellowish, or bluish tint) when exposed to ultraviolet light. They are only stated in the report, not graded.
Finally, there is a diagram on the certificate that approximates the shape and cut of the diamond. It has markings (in symbols) that include the type, nature, position, and approximate size of a clarity characteristic.
Gem quality
Coming from a leading gemological laboratory (the EGL mark appears under ultraviolet light), the certificate will ensure that your diamond jewelry has the quality you paid for. Do your diamonds have certificates?
About the Author
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