Buy Test Kit 10K 14K 18K 22K Gold Silver Platinum Stone Test Needles

Customer Ratings:

It took forever to receive however it works very well and is definately a fresh batch. I have never used needles before but decided to try them as sometimes there is a question about a piece and they could help with a second opinion.

Click Here For Most Helpful Customer Reviews >>

If your testing precious metals; this is the set to own. The stone is of higher-end quality, however the stone is rather small for testing batches of metals. This is a minor issue thoughquality is what you need. The gold needles are a must havewhy? to narrow down the (K)arat grade of gold. Yes, the needles are real gold tipped, and they do wear out after a while in use. Use the needles only if narrowing down Karat grade is of the greatest importance in your testing. A needle set costs for obvious reasons.

This is personal testing advice and a review for this product all legal, physical, and personal liability rests on YOU.

How to use the gold needles for a "judgement based" assay of Karat:

1. Scratch your test gold item on one side of the stone, narrow down the grade by the normal process of using acidsmatch K acid to item, or use acids from lower K to higher K, but only if the item doesn't have an assay mark to Karat.

2. Now that you have an idea of Karat grade on the test item, scratch the higher K and\or lower K grade tips of your needles on the stone.

3. Apply the matching Karat acid to the Karat scratches made by the needles on the stone.

4. Compare the scratch marks by the test item on the stone to the scratch mark(s) made by the needles. Does the "14K" of the test item look more like the 18K needle scratch? It could be 14K-17K. Did the 14K look more like the 10K needle scratch? It could be 8K-13.5K

5. When undecided cut deep with a file or break the test item and apply the correct Karat acid directly on the test item in question. It could be heavy plated and or gold "covered" to fool an acid based gold testing person.

Best Deals for Test Kit 10K 14K 18K 22K Gold Silver Platinum Stone Test Needles

Description clearly states 5 specific types of testing needles, the picture shows 4, mine came with 3... Otherwise its legit.

Honest reviews on Test Kit 10K 14K 18K 22K Gold Silver Platinum Stone Test Needles

I have an old gold testing kit that I had to give up because the solvents dried up and the "keys" corroded. On that one you scratched the stone with the key and scratched it with the item you were testing. Then you dropped the solvent on both. If the scratch from the item stayed as bright as the "key" scratch your item was 14K or whatever. Easier as far as I'm concerned. I also tested the silver solvent with a piece of silver marked sterling but according to the tester it was not silver.