How can you tell the difference between a fake diamond and a real one???

Question

...tom science

Answer 1

by the clarity of the gem, it has no multi colored effect only z has that you might flaw the diamond by scratching it on a mirror or glass best bet is to take to a jeweler most will do it for free,even a pawn shop can just ask for an appraisal

Answer 2

The main difference between glass and diamonds or cubic zirconia is that glass is much softer than either of these materials. Take the stone and try to cut some scrap of glass with it (like an old bottle). If it easily gouges the glass, it's either a diamond or a cubic zirconia. If it doesn't, it's glass.

Cubic zirconia is also softer than diamond so a known diamond should scratch it. You may not want to risk damaging the stone, however. Cubic zirconia also has a higher specific gravity (5.95) than does diamond (3.52) which isn't too difficult to measure if you have the equipment.
Another simple way to distinguish glass from cubic zirconia from diamond is to get a hold of a long-wave ultraviolet light (also called a black light). Diamonds will usually glow blue, cubic zirconia will glow mustard yellow, and glass will not glow at all.

Answer 3

diamond form over millions of year with high heat and pressure.... the long period of time allows the crystal to grow in form into a specific structure. However a fake diamond (man made) was formed over a very short period of time thus the internal crystalline structure is not the same. You can tell this when you look at it under a microscope.

However with increasing technology, man has now invented a way of making diamonds with the exact same structure as as a real one. To prevent the flooding of the markets with the "fake" diamonds, a company De Beers, which owns over 95% of the diamond mines in the world has laser imprinted all diamonds it produces with the company name and certificate number. This laser imprint is so small, only a microscope can see it.

Answer 4

For the most part you need Gemological Equipment and Training to really tell the difference (Refractometer). Sometimes if your lucky the source you buy from will tell you what it is your buying - but not everybody is that honest - the below will give some idea of the qualities used to judge and evaluate a real diamond.

The Four Standards used to Rate and/or Grade Diamonds

COLOR - CLARITY - CUT - and CARATS:

COLOR: Diamonds are rated for color on a scale of D to Z.

D-E-and F: Colorless.
G-H-I - and J: Nearly Colorless.
K-L-and M: Faint Yellow ,Brown,Very Light Yellow
S to Z: Tinted and Fancy Colors

Clarity: Based on the number and severity of flaws that can be seen with a 10 power loupe.

FL: Flawless.
IF: Internally Flawless
VVS1: and VVS2: Very very slightly included.
VS1: and VS2: Very slightly included.
SI1: and SI2: Slightly Included.
I1: - I2: and I3: Included
P: Heavily Included or Pique.
(Included = Internal flaws or imperfections).

CUT: The cut of a stone is a subjective evaluation of a diamond based upon Brilliance - Dispersion - Luster and Scintillation.

Brillance: The reflection of white light within the stone.

Dispersion: The "Rainbow" produced inside a diamond.

Luster: The quality and quantity of reflected light from a diamond.

Scintillation: The amount of "Sparkle" from a diamond as it is moved and rotated.

CARATS: The weight of a gem.
One Carat: 1/5th of a gram.
One Point: 1/100th of a carat.

Answer 5

Simple, grab a magnifying glass (jewelers call it a "loop") and examine in a well lit area. What you are looking for are small marks (most look like tiny cracks inside the stone itself) that become apparent as you move the stone slightly under the glass. These marks are called "inclusions" and only a real diamond (or any precious stone for that matter) will have these. Cubic Zirconia or composite fakes will not have these as they are chemically altered to have the appearance of diamonds.

Answer 6

someon once told me, that if the diamond is on a ring, necklace, etc... that the back of it would be visible on the other side.
Like a fake diamond would be embedded with a solid material behind it and you could only see it from the front.

Where as the real thing would be mounted in an opening of the metal material

hope that made sense.

Answer 7

When you put a real diamond in light, it will NOT emit the rainbow --- every diamond is flawed in some way, if you look very close, you can usually see it with the naked eye. Now if you have a fake diamond, you will see the rainbow reflective thingy in it.

FYI, many different fake diamond look alike stones will cut glass, that is not the way to test it. They are lab created to be as hard as the maker wants them to be.

Answer 8

For a regular person with an untrained eye it might be very hard to tell a real from a fake. You can try to cut glass, because a real diamond can cut glass, but other than that you should probably take it to a local jeweler and have it examined.

Answer 9

C 'mon people even quartz scratches glass!!! Anytrhing over 7 on the mohs hardness scale will including diamonds, topaz ,peridote and garnet cubic zhitconia etc. Look for flaws, if it is in a setting look at the quality if the setting, would you spend big for a setting if the rock was trash? Cheap setting = cheap stone.

Answer 10

Turn it over. Upside down diamond will reverse print and fake will still look normal. Granted this only works if the diamond is large enough to look through.