How reliable are diamond testers?
The science behind a diamond tester is that heat or electricity transfers through other elements like glass or cubic zirconia differently than the way it would pass through that of a real diamond.
They are extremely accurate and will save you much time and effort when you are trying to analyze diamonds..
What diamonds will pass diamond tester?
A diamond tester will only test positive for diamond and moissanite. Synthetic moissanite has been used as a gemstone only since the 1990s, so if your piece is from an earlier era, it’s definitely a diamond if it passes this test!
Are diamond testers ever wrong?
Diamond testers are one of the most accurate tools to check a diamond for authenticity. However, you should know that testers that rely on thermal conductivity can mistake a moissanite for a diamond because these two stones are very similar in the way they conduct heat.
How can you tell if a raw diamond is real?
Put the diamond under the loupe or microscope and look for rounded edges that have tiny indented triangles. Cubic diamonds, on the other hand, will have parallelograms or rotated squares. A real raw diamond should also appear like it has a coat of vaseline over it. Cut diamonds will have sharp edges.
Are uncut diamonds worth anything?
The natural quality of a rough diamond (carat, color, and clarity) determines the value of a cut and polished diamond. The cutting process is very exhaustive and requires immense skill, so raw, uncut diamonds will almost always be less expensive than a cut diamond with the same carat, color, and clarity.
Will a diamond tester work on rough diamonds?
The best and quickest way to identify a rough diamond is to test it with a portable diamond tester. This device works by passing electricity or heat through the stone to detect its electrical or heat conductivity.