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Diamond is the hardest natural mineral, raking at 10 on the Mohs scale of hardness. Thus, it is a standard.
A beta tester.
It is a conductivity tester!
hydrometer
The insulation resister tester was invented by Ohm and was instantly the industry standard when dealing with testing the safety and effeciency of electrical products according to the Electrical Construction & Maintenance web site ecmweb.
Yes.
You can apply a diamond tester to anything else, but the information you read on the instrument will be meaningless, unless you are testing a diamond.
Diamonds conduct electricity, and your local jeweler probably has a diamond tester that uses this characteristic to tell real stones from the fakes. You can take your black diamond in and ask that the stone be tested. Edit From Siddharth Nayak: Also, if a diamond tester tries to get payed for his/her services, there is a quicker, faster, and free way: simply hold the diamond out in the sun, and if it gets hot, then it is glass, if it stays normal temperature, it is a diamond...but then again, it might be simply coated with diamond and internally glass... -Siddharth Nayak
Diamonds conduct heat so you can test them with a diamond tester.
A thermal diamond tester is a tool used by anyone interested in verifying that a gem is indeed a diamond. The tool uses electronics connected to a probe with a fine tip that reads the stone's level of thermal conductivity to positively or negatively test for the mineral diamond.
A 'quick and dirty' test is to pass the diamond over glass. If it cuts the glass, it's probably a diamond. Some 'fake' diamonds cloud up under cold water; a real diamond remains clear. Finally, a certified gemologist will always be able to tell whether a diamond is a real diamond, or a 'fake' diamond -- using a diamond tester.
Quality Control Specialist
By using a Diamond tester on the Diamonds and checking the hallmarks, if in doubt, check it out and take to a jewellers
Diamond is the hardest natural mineral, raking at 10 on the Mohs scale of hardness. Thus, it is a standard.
Generally, the instrument is a check, cash or a credit card. If, however, you want to verify that the stone that you are buying is a diamond, you need a diamond tester.
This vastly depends, depending on your industry, your level, and the type of work you do. As a software quality assurance tester, I have seen a range of $40,000 to $120,000 a year.
Have you ever heard of the Moh's scale? I believe quartz ranks 7 and diamond 10. If you can obtain topaz which is more common then Corundum and it leaves a streak on the mineral then the mineral is Quartz, but if the topaz or coundum is scratched then it is indeed a valuable diamond.