Gemstone Testing Equipment kit Includes; PuriTEST Diamond Gauge , PuriTEST Specific Gravity  sheet of semi-precious stones, PuriTEST 30x Loupe 30x 21mm Triplet, 9 LED 395nm LONG Wave Ultra-Violet torch light, One Microfiber gemstone cleaning cloth, (1) 6.5mm Round Brilliant Cubic Zirconia AA-AAA VVS-VS D Color test specimen stone along with Fine Print Fortune Cookie. This is what the PROS use! Never get taken again when buying jewelry online or at Estate/Yard sales.

Please examine the photos of this Ebay description listing page. Please review the gold engagement ring, and see how the letters of the fine print shows clear read-through effect, THIS IS NOT DIAMOND! Examine the white gold pendant in the above photos, notice how the read-through effect is faint, this is because of the size of the stone is much smaller, but again, THIS IS NOT DIAMOND! Stones that display read-through effect on fine print are NOT DIAMOND! It is best to test with Round brilliants and ovals and some fancy cut stones.


Refractive Index reading for Rutile R.I. 2.61-2.91 Displays NO READ-THROUGH

Refractive Index reading for Moissanite R.I. 2.65-2.69 Displays NO READ-THROUGH

Refractive Index reading for Diamond R.I. 2.42 Displays NO READ-THROUGH

Refractive Index reading for Strontium Titanate R.I. 2.39 NO READ-THROUGH

Refractive Index reading for Cubic Zirconia R.I. 2.15-2.25 Slight Read-Through

Refractive Index reading for Gadolinium Gallium Garnet R.I. 1.97 Slightly Good Read-through

Refractive Index reading for White Zircon R.I. 1.93-1.98 Slightly Good Read-Through

Refractive Index reading for Yttrium Aluminum Garnet R.I. 1.83 Good Read-through

Refractive Index reading for White Sapphire R.I. 1-76-1.78 Very Good READ-THROUGH

Refractive Index reading for Spinel R.I. 1.72 CLEAR READ-THROUGH

Refractive Index reading for White Topaz R.I. 1.61-1.64 VERY CLEAR READ-THROUGH

Refractive Index reading for Faceted Glass R.I. 1.52 Extremely CLEAR READ-THROUGH


* You will see from the above Refractive Index listings that three simulants display high Refractive indices and DO NOT show read-through effect. These are all easily separated because of HIGH DISPERSION OR DOUBLE REFRACTION characteristics that they  display! Strontium Titanate is the only simulant with similar Refractive Index readings as Diamond that is Singly Refractive.
                               


* Testing tip for Cubic Zirconia, Faceted Glass, White Sapphire, White Topaz, Colorless Zircon. All of these above stones have lower refractive indices as Diamond. These stones will all show the read through-effect, some greater than others. Zircon and Cubic Zirconia may require the loupe to distinguish read-through effect. These all can be easily separated by using a small fine print and seeing if you could make out the letters. *Only works best on round brilliants, and some types of oval and fancy cuts. Please reference image provided in the above Ebay photos of this listing to understand the read-through effect. Examine the photo of Cubic Zirconia placed table down on top of a black dot. This is the Dot Test, Cubic Zirconia has lower Refractive Index than Diamond and will display the Black dot clearly. Other natural Stones not provided! Only for demonstration purposes only! All simulant and natural stones in this Ebay listing taken are examined using a millimeter gauge under 8x magnification (NOT PROVIDED ONLY FOR DEMONSTRATION PURPOSES. You will only receive (1) 6.5mm Round brilliant Cubic Zirconia specimen stone. 

Please continue reading down below of how to perform various tests.

* This kit will only include (1) 6.5mm round brilliant Cubic Zirconia AA-AAA grade VVS-VS D color 1 carat Diamond equivalent simulant specimen stone. You can use this to study facet rounding with your 30x triplet loupe included in this kit. This specimen is good to use in distinguishing the poor thermal conductivity properties of Cubic Zirconia (FOG TEST). Use this specimen stone as a gauge for the Culti Selector II Diamond Tester NOT provided in this kit! Test the loose stone in the aluminum testing tray NOT provided in this kit. Specimen Cubic Zirconia stone should only go up 1-2 bars on the Volume intensity meter of Conventional Diamond Testers NOT PROVIDED IN THIS KIT.

Understand the density of certain gemstones to accurately calculate the estimated total carat weight of your jewelry! Use the PuriTEST Specific gravity Sheet provided in this kit to accurately calculate gemstone estimated weight! Your Cubic Zirconia specimen test stone will gauge as 6.5mm according to the Gemstone estimated Diamond gauge and will show as 1 carat. Remember this gauge only references known density of (Diamond 3.52 Specific Gravity)! Cubic Zirconia is roughly 1.6-1.8 times as dense as Diamond. Cubic Zirconia has a density from 5.6-6.15 Specific Gravity, depending solely on the stabilizers that are used in the proprietary formulation of CZ! Example 6.5mm round Cubic Zirconia specimen stone should weigh approximately 1.7-1.8 carats.


Also you can understand the Visual Optic spectrum that Cubic Zirconia displays. Cubic Zirconia displays slightly different visual spectrums and has more dispersion and scintillation than Diamond! I will also include a random fortune cookie fortune along with this kit so you can better understand the Refractive Index of Cubic Zirconia. (Examine the photo above of a White Topaz displaying the numbers of the fortune cookie). White Topaz has a Refractive Index reading of 1.6-1.64 approximately. Cubic Zirconia will show a slight read-through effect (Cubic Zirconia has a refractive index of 2.2-2.25). 

Please review Ebay photos if performing the Visual Optic test. This test will not require the loupe. This will only require your eyes and a light source.

Visual Optics


 This method costs nothing, and only uses your eyes and a light source. Light source could be a pen light, an old incandescent light bulb, or even the moon light shining in through your window.

How to test: If testing in set jewelry make sure to place stone as close to your eyeball without touching your eyeball! If you wear contacts, then you are ahead of the game! Place stone close to eye and peer through stone to light source.

Using Visual Optics on Diamonds you will see what appears as a night sky of small sharp stars scattered through out. I.D. of Diamond.

Using Visual Optics on Silicon Carbide "Moissanite" you will see what appears as a blizzard of wonderful colored snowflakes. I.D. of Silicon Carbide "Moissanite".


Viewing the above photos of this listing will show you the effects of read-through of Glass,Cubic Zirconia, White Topaz, and White Sapphire. Please view the photos above, this will show in the photos of this Ebay listing. Cubic Zirconia also is a poor thermal conductor, the Diamond Tester NOT provided in this kit, will show you this, only going up at the most one or two bars on the intensity volume meter. If you breath on your test Cubic Zirconia specimen it will fog for more than three seconds. If performing this test please make sure the stone is free from all oils, dirt and grime. Wipe with a soft microfiber cloth (provided in this kit), or paper towel.


The Cubic Zirconia 6.5mm Round brilliant specimen stone provided will give you a valuable indication of performing the visual optics test. Cubic Zirconia performs very similar spectrum patterns as diamond, the main reason of the popularity of Cubic Zirconia in the marketplace today! Moissanite on the other hand displays greats amount of dispersion and scintillation! Moissanite is compared to as a Disco ball effect. Comparing your test specimen Cubic Zirconia to moissanite you will see very clearly that the stone is definitely off!

*Doubling View of Moissanite Caused by Refraction of Light

The best way to observe this effect is to view the gemstone at an angle from the crown (bezel) facet. By bringing a 10X loupe and focusing on the culet through the bezel facet, you can check the gemstone for a “doubling” facets effect.


  Using the above various methods of testing provided in this in depth Ebay description will give you accurate non destructive means of identification. Visual Optic identification, along with read-through effect Refractive Index testing, and the thermal conductivity diamond Culti Selector II tester NOT provided in this kit, will provide the best means of identifying questionable stones.


The information provided in this description page is very vital information to perform various tests, and have the most accurate results! It should be read and completely understood. Please continue reading down below for more important vital information.


Diamond Gauge Sizer Estimator Mounting gem carat Tester kit Size Measuring Gemstones   

GENUINE PURITEST - PRECISE ACCURATE Carat Sizing Tool!

These Diamond Carat Gauges are extremely thin 0.03 millimeter in thickness. These Diamond Carat Gauges are extremely lightweight weighing 0.75-0.80 grams. These carat gauges are the cheapest option, when other means are not available! These transparent Carat Gauges are perfect when in the “field” at yard sales/estate sales! Perfect to use when wanting to know the carat weight of set semi-precious stones or re-selling jewelry on Ebay! With the information down below of this listing, you can understand how to calculate carat weight of any gemstone with the formulas given in this ebay description!

  • This is a new gemstone weight gauge
  • The diamond weight estimator is perfect for estimating the size of loose or mounted stones when other methods are unavailable
  • This estimator works for emerald, marquise, pear shaped, round and baguette stones as well as brilliant full cuts
  • Simply lay the gem estimator on your stone pad and place the diamond in question on the appropriate outline, and you will be able to instantly tell the approximate weight of your stone

Measurements of this Carat Gauge Estimator: 9 inches length x 4 inches width x thickness 0.03 MM (1mil-1.5mil). Ultrathin and lightweight for convenience! This gauge is only 1/33 of a millimeter in thickness!These Diamond gauges are Super lightweight weighing 0.75-0.80 grams. These are extremely flexible making it easier to gauge on mounted settings with Diamond melee accented stones. The thicker gauges are more difficult to maneuver around the shanks of rings. With these you can easily wrap the gauge around a ring making it easy to use the gauge for small 1.5-2.5 mm Diamonds! With one hand using the gauge wrapped around the ring and the other hand using a jewelers loupe to get the most accurate estimate!

  • Gemstone weight estimation SPECIFIC GRAVITY SHEET.
  • Lists the SPECIFIC GRAVITY OF 12 OF THE MOST COMMON JEWELRY GEMSTONES!
  • SPECIFIC GRAVITY COMPARISONS FROM 0.03 CARAT TO 3.00 CARATS!
  • This is the must have tool for the Pawnshop owner, Gold & Silver Buyer or Estate sale/Yard sale picker!


For those that already own a Digital Caliper accurate to 0.01 millimeter I will be providing Diamond Carat Weight Calculator Formula below:


*Calculating Diamond carat weight by diamond carat weight formula


For Round Brilliant faceted stones:

The Formula is Diameter squared x Depth x Specific Gravity x 0.0018= Carat Weight


For Oval faceted stones:

The Formula is Length x Width x Depth x Specific Gravity x 0.0020= Carat Weight


For Emerald cut faceted stones:

The Formula is Length x Width x Depth x Specific Gravity x 0.0025= Carat Weight


For Rectangular faceted stones:

The Formula is Length x Width x Depth x Specific Gravity x 0.0026= Carat Weight


For Square cut faceted stones:

The Formula is Length x Width x Depth x Specific Gravity x 0.0023= Carat Weight


For Marquise cut faceted stones (Navette):

The Formula is Length x Width x Depth x Specific Gravity x 0.0016= Carat Weight


For Pear cut faceted stones:

The Formula is Length x Width x Depth x Specific Gravity x 0.0018= Carat Weight


For Square Cushion faceted stones: (Average corner measurement and belly measurement for diameter) 

The Formula is Diameter Squared x Depth x Specific Gravity x 0.0018= Carat  Weight


For Rectangular Cushion faceted stones: (Average Length and Width for diameter)

The Formula is Diameter Squared x Depth x Specific Gravity x 0.0023= Carat Weight


For Rectangular step cut faceted stones:

The Formula is Length x Width x Depth x Specific Gravity x 0.0025= Carat Weight



For Square step cut faceted stones: (Average both measurements for diameter)

Diameter Squared x Depth x Specific Gravity x 0.0023= Carat Weight


For Cabochon cut faceted stones:

The Formula is Length x Width x Depth x Specific Gravity x 0.0027= Carat Weight




 

PuriTest TM 30X Jewelers Triplet Loupe 30x 21mm NEW IN CASE

  • This is the most valuable tool for the Pawn Shop owner, Gold & Silver Buyer, Estate/yard sale picker! Coin collector's tool,Gemstone buyer, Baseball card collector! So many uses for this 30x Jewelers triplet loupe!
  • Read the inscription serial number on a Diamonds Girdle with this 30x triplet loupe!
  • Use this 30x triplet loupe to test for Moissanite!
  • Use the 30x triplet loupe to test for Moissanite's Double Refraction characteristics!
  • The more you buy the more you save many loupes available!

*Instructions for testing for *Moissanite* using a 30x triplet loupe. Diamonds are graded by laboratories using a standard 10x loupe. With using 30x triplet you are 3x the magnification of an ordinary 10x loupe. This allows you to view the crown bezel facets with the stone in question at an angle and look through into the culet.  Angle of tilt (C-AXIS) and observe the culet through the crown facets. Again, the doubling effect shows up and this should confirm your suspicion.

* Please reference my photos of my listings.

This allows me to actually show you what to look for!

In the images provided above in the listing photos you can see what angle you need to tilt the stone in question to determine double refractive properties. This takes some time to master but once you master this technique it takes literally seconds to make the determination. Moissanite testers are good to have but shouldn't be relied upon. Moissanite testers are in my personal opinion overpriced compared to a basic inexpensive jeweler's loupe!


Loupe comes in Cardboard PuriTest box and a case for carrying and protection!

Ultra Violet 9 LED Flashlight Blacklight Torch Light Black Aluminum Case and key chain

* Tips for identifying Synthetic Lab Grown Cultured Diamonds

     Check the fluorescence using a modified technique. If the stone is a Type II diamond, examine the stone with an ultraviolet lamp that provides long-wave and shortwave emission. Note the reaction under each wavelength. To use the ultraviolet lamp to determine whether the stone is a natural or synthetic diamond, do the following:

 • View the diamond on a black background. If possible, place the stone in a table-down position.
 • Hold the lamp as close to the diamond as possible.
 • Be sure the room is completely dark. The stone must be viewed in total darkness to see the reaction.
 • Note the reaction to long wave; repeat using shortwave.


If the diamond fluoresces blue then it is not a synthetic. Natural diamonds can show fluorescence of almost any color but the most common fluorescent colors seen are blue, yellow, and white. However, blue fluorescence is positive confirmation of natural diamond—only natural diamonds fluoresce blue (as of date).

Synthetic diamonds typically show the strongest reaction under shortwave. Whereas natural colorless diamonds which exhibit fluorescence, the reaction is typically strongest under long-wave UV, becoming weaker when viewed under shortwave.
In the case of the new synthetic colorless/near colorless CVD diamonds, the fluorescent reaction to the above technique is distinctive: Dark brownish-red fluorescence under long-wave UV, becoming slightly stronger under short wave ultra violet light, or dark red under long-wave, which changes to moderately strong yellowish/greenish under shortwave, is positive confirmation of synthetic diamond. In some cases, the reaction will be weak-to-moderate greenish/yellowish under long-wave, becoming much stronger under shortwave. This also indicates synthetic. A small number have exhibited phosphorescence under shortwave, which is positive confirmation of synthetic

 In natural diamonds there are often some cases of plastic deformation, elastic deformation near inclusions, growth striations, growth sector boundaries, dislocations, diamond-substrate boundaries which cause anomalous double refraction in a diamond and it gives rise to an effect called “interference color” look like rainbow colors (the greater the strain the more intense the interference color appear to be, like in type Ia diamonds).


 Ultra Violet 9 LED Flashlight Blacklight Torch Light Black Aluminum Case and key chain


  1.  This can be used to detect Genuine and counterfeit Currency! #10
  2. Repairs done on Collector's numismatic currency.
  3. Repairs done and Altering or Recoloring done on sports cards!
  4. Identifies certain GEMSTONES ex: Rubies etc
  5. Identifies many Diamonds that fluoresce 30%-40% of diamonds do!
  6. Diamonds fluoresce certain colors from white to blue and yellow.
  7. Synthetic diamonds fluoresce from pink to Orange and yellowish-green. Cultured Synthetic Diamonds are usually inert to Long wave UV, further  testing is needed using Short wave UV.
  8. Modern Cubic Zirconia does not fluoresce under Ultra Violet lighting!
  9. Identifies diamond cluster rings in seconds to see if further testing is needed.
  10. Around 30% of diamonds fluoresce blue under Long Wave UV. * EXAMPLE A cocktail ring with all the stones that do not fluoresce under Ultraviolet is very suspect! *Further testing is needed if stones do not fluoresce. Use 30x loupe to check for rounded facets, or use diamond tester for fast accurate results!
  11. CURRENCY DETECTOR FOR US FEDERAL RESERVE NOTES FRN'S
  12.  $5 – Right side. Glows blue under UV light
  13. $10 – Right side. Glows orange under UV light
  14. $20 – Far left hand side. Glows green under UV light
  15. $50 – Right around the middle. Glows yellow Under UV light
  16. $100 – On left side. Glows pink under UV light Older US FRN $100 Version.
  17. $100 - Present FRN $100 note has visible Blue security strip.
  18. Be sure to check and make sure the series year stated is a correct match with the letter that starts the serial number, and vice versa!
  19. List of years of first letter series on 2004 series to 2009 series.
  1.  E = 2004
  2. G = 2004A
  3. I = 2006
  4. J = 2009
  5. L = 2009A

In 2009, the United States secret service seized over $182 million dollars in counterfeit currency. In 2008, the secret service seized $103 million. The Federal Reserve estimates that at any given time, between $60 million and $80 million are in global circulation.

Please reference the above images for using the Ultra-Violet light on currency! Look through all pictures of this listing please!!! This helps me help you understand what to look for.

Ultra-violet Detection


All authentic US currencies have security threads embedded in the fabric of the bill. Under the view of an ultra-violet light, the security thread will glow a specific color according to the bill’s denomination. See the image above!

Examples:Security thread will glow pink/red in a 100, yellow in a 50, green in a 20, orange in a 10, blue in a 5.



      This ULTRAVIOLET tool has so many things THAT IT CAN TEST FOR! This is the must have tool for ANYONE that handles cash on a daily basis! This tool will pay for itself if you only come across one counterfeit note in your lifetime!

      • Dimensions 3.25" in Length x 0.93" in width
      • Takes3 x AAA batteries (Included) Ready to use! UV light comes with Brand New AAA batteries!
      • Material:Aluminum
      • Size:84mm*23mm
      • Light source: Ultraviolet LED :9 LED
      • Shell color:Black
      • KEY RING O RING FOR KEY CHAIN