Real or fake?
Coated?
Is it the fineness it should be?
Is it filled or hollow inside?
Is the size and weight appropriate?
Does it meet factory specifications?
Non-destructive testing of gold, silver, platinum and palladium coins, bars and ingots – even in capsules, slabs or sealed packaging.
Investment coins testing with electromagnetic method
SIGMA PRO
Determines alloy elements and their ratios in seconds. Optimized for 26 precious metals and alloying materials. Test report available upon request.
Analysis of jewelry composition using
X-ray fluorescence (XRF)
RAYMAN XRF
How many karats is it really?
What alloy is it made of?
Elemental composition? (%)
Does it contain foreign or harmful metals?
Does it match the hallmark?
Does it have a coating?
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Prepare a list of the items you would like tested: jewellery, other objects, silver or gold coins, bars or ingots. Please see our package prices below.
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If possible, send us details of the items in advance by e-mail. This helps speed up the examination of coins, bars and ingots.
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Initial consultation by phone: questions and answers.
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Agree on the date, time and location: at your premises or ours.
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On-site visit: we travel to you in Budapest or elsewhere in Hungary, or you can visit us.
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Examination: non-destructive precious metal testing of coins, jewellery, bars and other objects.
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Itemized identification list: upon request, we can prepare a detailed list of the items examined.
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Payment on site against invoice.
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Optional XRF certificate: available upon request for XRF measurements.
Preparations for the on-site test
PROCESS
Our instrument-based testing package prices have been optimized for on-site examinations at the customer’s premises. Transporting and setting up professional analytical instruments requires special care and attention. The SIGMA instrument is suitable for testing investment and historical coins dating from the 1800s onward, as well as bars and ingots with a minimum precious-metal purity of 90%.
The XRF instrument analyzes the elemental composition of the surface of precious-metal items and determines the percentage of the detected elements. It can also be used to examine jewelry and other PM objects. For on-site testing, access to a standard 230 V mains power supply is required.
Upon request, we can also provide a 50 g jewelry-, a 2000 g precision scale, a pinger tester, a digital caliper, and 40× (25 mm) and 20× (21 mm) jeweler’s loupes.
SIGMA PRO GOLD PACKAGE
€ 111
Inspection of 0-10 pcs.
2 packages 11-20 items -5%
3 packages 21-30 items -10%
4 packages 31-40 items -15%
Custom pricing for orders over 40 pieces!
SIGMA PRO SILVER PACKAGE
€ 111
Inspection of 0-25 pcs.
2 packages 26-50 items -5%
3 packages 51-75 items -10%
4 packages 76-100 items -15%
Individual pricing for orders over 100 pieces!
XRF TEST PACKAGE
€ 80
1 item max. 3 measurements
Due to the preparation and operation of professional measuring equipment, we undertake on-site visits for a minimum of 3 test items.
Delivery fee: 10,000 HUF in Budapest,
but free for 4 or more packages.
250 HUF/km in rural areas.
Certificate of verification upon request:
3000 HUF / test
The prices shown in € are payable in
HUF and are without of VAT!
Test package prices and discounts
PRICES
Frequently Asked Questions
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The elements highlighted in red on the modernized Mendeleev's periodic table include precious metals, as well as alloying, coating, and contaminant elements commonly found in jewellery and precious metal alloys.
Gold coatings can range in thickness from just a few hundredths of a micron to several tens of microns. Very thin “gold flash” coatings of around 0.05–0.2 µm are mainly decorative and wear off more quickly, while coatings of 2.5–5 µm or more are significantly more durable.
The full coating thickness range shown in the illustration, approximately 0.05–10+ µm, can be detected using XRF technology. A properly configured benchtop XRF analyser can identify the presence and composition of a gold coating, while some instruments also offer dedicated coating-detection features.
It is important to note, however, that the thicker the gold layer, the more the XRF primarily “sees” the coating itself, making it increasingly difficult to draw reliable conclusions about the base metal underneath.
Visit my Facebook group where I share more technical- and market information:
"Desktop XRF Users: Gold, Jewelry & Precious Metals"
Certificate of verification is
available upon request.
INTERESTING FACTS
The physics behind the test
Independent tests with no hidden agenda!
Do not rub, scratch, or use acid on your jewelry to test its gold purity!
AI generated images.
Before you buy - always.
NON-DESTRUCTIVE
PRECIOUS METALS
TESTING
★ ★ ★ ★ ★
fast
testing
complete
discretion
accurate
results
at your
location