Call us at 1-800-295-6320

Precious Metal Testing

Equipment and supplies for testing gold, platinum and silver.
  • AuRACLE AGT2 Electronic Mobile Gold & Platinum Tester for Mobile Devices

    The revolutionary and best performing AuRACLE™ gold tester from GemOro has evolved to a NEW generation in a Bluetooth mobile version that makes it faster, easier and more convenient than ever before.

    • Works with LOW-ENERGY Bluetooth Apple, and Android devices (Note: Android devices require Lollipop version OS or newer.)

    • Compact and pocket sized €“ No wires required

    • Automatically calculates your unique buying price

    • Automatically generates detailed e-mail receipts for both your business and customer

    • One touch easy calibration for consistent results

    • May be calibrated using 10K, 14K, 18K, 22K, 24K or platinum

    • world’s best performing gold testing technology with unmatched accuracy

    • Tests all colors of gold in 10K, 14K, 18K, 22K, 24K and platinum

    • Follow easy steps to identify non-gold, gold plate and gold filled as NOT GOLD

    • Simply touch pen probe to gold or platinum for results

    • Pen probe provides thousands of tests with proper care

    • No messy gel. No staining chemicals. No dangerous acid.

    • Includes AGT BLUE™ with built-in testing plate, pen probe, file, carrying case and easy to follow tutorial instructions (mobile device not included)

    • One Year Limited Warranty

    $275.00


  • Replacement Pen Probe for AuRACLE™ Gold Testers

    Approved replacement pen probe, available for AGT1™ PLUS, AGT2™, and AGT3™ testers.

    $39.95


  • Assay Lead Foil

    5 lb. roll.

    $84.95

    SKU: LeadFoil

  • Shor Fire Assay System

    The Shor Fire Assay System

    A process dating back thousands of years, in 1979 Shor introduced the first turn key in-house fire assay systems to the jewelry industry. These first systems purchased from Shor in 1979 are still in continuous use and will probably continue to be used well into the 21st century.

    The method known as "Fire Assay" is the oldest known method of assaying gold and continues to be the most accurate and economical method of determining the purity of gold. Capable of precision down to 1 part in 10,000 the fire assay system allows you to make up to 20 assays at once with a cost as low as $1.00 per assay.

    This system can easily and inexpensively be expanded to greater capacity. Every sample can be assayed for gold content, platinum & silver content. The process returns the sample as 999.99+% pure metal. Many samples can be assayed at the same time. We have separate procedures for both large and small batch sampling.

    The assaying system will fit onto a 3' x 5' (90 x 150 cm) table and includes all equipment and supplies (except acid and water).

    The Shor Fire Assay System comes complete with both written instructions that are updated regularly and the transcript of a seminar given by Shor on assaying (including questions and answers).

    Additional technical support is available over the phone, internet and/or fax at no extra charge.

    A brief description of how fire assay works:

    The sample of gold is weighed very precisely and the amount is recorded. The sample is wrapped in assay lead foil along with a quantity of pure silver. This wrapped ball is placed in the furnace in a cupel (a special kind of disposable crucible). All the non-precious metals are absorbed by the hot cupel. The precious metal forms a button within the cupel. The cupel is removed from the furnace, from the cupel and then brushed to remove any lingering bits of cupel. It is hammered flat, rolled thin and then heated in a porcelain crucible containing a weak nitric acid solution. The acid removes the silver, which is poured off and the silver recovered from solution. The gold is then rinsed in distilled water to remove any residual acid and then dried. The sample of gold is now at least 99.999 pure. The sample is then weighed again. The original weight of the impure sample is divided into the weight of the now pure sample. The result is the assay

    $4,795.00

    SKU: FireAssay

  • AuRACLE™ Gold Tester

    Quickly, safely and accurately buy and appraise gold with confidence.

    • World€™s most user-friendly, best performing handheld electronic gold tester with unmatched accuracy PATENTED
    • Tests all colors of gold from 6K to 24K
    • Tests platinum 
    • Follow easy steps to identify non-gold, gold plate and gold filled as NA
    • Immediate test results; no waiting between tests
    • Simply touch pen probe to gold and LED indicates karat
    • Pen probe provides approximately 5000 tests with proper care
    • No messy gel. No staining chemicals. No dangerous acid
    • Compact and portable - 9V alkaline battery powered

    $499.00

    SKU: 2007

  • Precious Metal Test Kits (Complete)

    Scratch testing is one of the oldest methods known to man for testing the karat of gold. In experienced hands, a scratch test is sensitive to within about +/- 1/2 karat or about 2%. In the hands of a novice, sensitivity is more likely to be about +/-1-2 karat. Kits come complete with instructions Gold Scratch Test Instructions.

    These kits are for testing gold, silver and platinum. They come with gold test needles, wooden case, test acids and a scratch stone.

    $59.95 to $129.99


  • Precious Metal Test Needle Sets

    Scratch testing is one of the oldest methods known to man for testing the karat of gold. In experienced hands, a scratch test is sensitive to within about +/- 1/2 karat or about 2%. In the hands of a novice, sensitivity is more likely to be about +/-1-2 karat. Kits come complete with instructions Gold Scratch Test Instructions.

    These kits are for testing gold, silver and platinum. They come with gold test needles, wooden case, test acids and a scratch stone.

    $43.90 to $64.30


  • Precious Metal Test Stones

    Scratch testing is one of the oldest methods known to man for testing the karat of gold. In experienced hands, a scratch test is sensitive to within about +/- 1/2 karat or about 2%. In the hands of a novice, sensitivity is more likely to be about +/-1-2 karat. Kits come complete with instructions Gold Scratch Test Instructions

    These kits are for testing gold, silver and platinum. They come with gold test needles, wooden case, test acids and a scratch stone.

    $10.45 to $29.99


  • Precious Metal Test Acids

    Scratch testing is one of the oldest methods known to man for testing the karat of gold. In experienced hands, a scratch test is sensitive to within about +/- 1/2 karat or about 2%. In the hands of a novice, sensitivity is more likely to be about +/-1-2 karat. Kits come complete with instructions Gold Scratch Test Instructions

    These kits are for testing gold, silver and platinum. They come with gold test needles, wooden case, test acids and a scratch stone.

    $4.95 to $9.99


  • Electronic Touch Stone for Gold

    For slightly more than the cost of an acid test kit, the ET18 precisely determines gold karat values equal to or greater than 10K, 14K and 18K. Pocket sized and battery operated. One year warrantee.

    $109.95

    SKU: TES-174.00

  • Replacement Activator & Electrolyte Kit for M18 Gold Tester

    Replacement Activator & Electrolyte Kit for M18 Gold Tester

    $21.95

    SKU: TES-172.10

  • M18A9 Electronic Gold Tester

    Precisely determines gold karat values equal to or greater than 9K, 10K, 12K, 14K and 18K. Battery operated. Two year warrantee.

    $189.95

    SKU: TES-172.00

  • M24 Electronic Gold and Platinum Tester

    These are some of the most advanced gold tester in the world. Precisely determines gold karat values equal to or greater than 9K, 10K, 12K, 14K, 18K, 20K, 24 K. Battery operated and are warranted for two years.

    $219.95

    SKU: TES-170.00

  • Replacement Activator & Electrolyte Kit for M24 Tester

    Replacement Activator & Electrolyte Kit for M24 Tester

    $24.95

    SKU: TES-170.10

  • Cleaner GXL, GS & GT Electronic Gold & Platinum Testers

    GT & GXL Cleaner.

    $12.55

    SKU: 56.769

  • GXL, GS & GT Electronic Gold & Platinum Testers

    These electronic Tester operate on ordinary household current and can also be run on batteries (requires two 9 volt batteries, not included). Replacement consumables include the conductive gel tube and the Pro cleaning solution.

    We carry 2 different categories of electronic Tester: Direct Reading electronic Tester and Chart Reading Tester. They all work similarly.

    Direct Reading GXL Electronic Gold & Platinum Tester
    These testers give you a direct L.E.D. reading of what the karat is. So, for example, if the karat of jewelry you are testing is 14K, it will show "14K" on the L.E.D. display. This can be quite useful when buying jewelry from the public or when, when selling, you feel the need to show customers that the karat stamped on your jewelry is the true karat.The GXL electronic Tester come complete with written instructions.

    Chart Reading GT Electronic Gold & Platinum Tester
    To use these Tester, you must compare the numerical L.E.D. reading with a chart that is printed on the tester. These Tester have two advantages; They are somewhat more sensitive than the Direct Read Tester and they are also significantly less expensive. Their disadvantage is that you have to look at a chart to get your result..The GT electronic Tester come complete with written instructions.

    $281.95 to $745.45