Search results
Results from the WOW.Com Content Network
Fake diamonds are often indistinguishable from authentic diamonds to the naked eye. But it turns out that telling the difference between a fake diamond and a real diamond is easier than you thought.
Diamond crystals in a diamond can also be present in the form of long and thin needles. These may not be visible to the naked eye, unless the needle inclusion is of a noticeable color or has a noticeable presence. Some needle inclusions are also known to give diamonds a special look.
Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects, called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat , color , and cut .
Diamonds -- fake and real -- are perhaps the best example of this. So 30 years ago, when one London-based woman found a huge, gorgeous and fake diamond ring at a car boot sale (almost the ...
GIA was also responsible for the first modern diamond grading reports, where it introduced grading methodologies for diamond color and diamond clarity. Current research at gemological laboratories concerns the development of improved detection techniques for treated and synthetic diamonds, as well as for treated sapphires, rubies and pearls.
A diamond simulant, diamond imitation or imitation diamond is an object or material with gemological characteristics similar to those of a diamond. Simulants are distinct from synthetic diamonds , which are actual diamonds exhibiting the same material properties as natural diamonds.
The key difference between lab-grown and natural diamonds is their origins: Natural diamonds take billions of years to form, and lab-grown diamonds can be created in a matter of weeks.
Herkimer diamonds are double-terminated quartz crystals discovered within exposed outcrops of dolomite in and around Herkimer County, New York, and the Mohawk River Valley in the US. [ 1 ] [ 2 ] They are not diamonds ; the "diamond" in their name is due to both their clarity and well-formed faces.