4 Visible Signs That a Diamond Might be Fake

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Diamonds are being faked everyday, so Gemcamp wants the public to gain awareness on a few easy-to-read flags that could raise your alert on the topic of whether or not a diamond should be tested for being fake.



Even if you aren't a gemologist, it's still possible to employ some smart tips and buying tactics when looking to purchase a new diamond. You can also use these bits of information to check your own personal collection for any doubtful signs that your stone might actually be an imitation and needs to be evaluated and authenticated by a gemologist. Be aware that these signs are only indicators or observations that are not often seen in natural diamonds. While their presence is still possible in a very small population of genuine stones, it is very unlikely.




If Your Diamond Shows Too Much Fire or Dispersion During Rocking and Tilting

While diamond is known for having strong "fire", which is basically the spectral color flashes you see when you rock and tilt the stone, two very famous imitations actually possess a higher dispersion rate. Cubic Zirconia and Moissanite both disperse white light into beautiful spectral colors as well, and they do it to a higher degree when compared to diamonds. Moissanite displays 2.4 times more "fire" than diamond, which can become visually evident, but might also be overlooked by the inexperienced buyer.



A Rough or Polished Diamond that Possesses Multiple "Scalloped" or "Curving" Fractures in Several Different Directions

Most gemstones when fractured, will show a scalloped, shell-like texture that gemologists refer to as a "conchoidal fracture", now while this can still also appear in diamonds, it really depends on the direction of the breakage. Diamond is one of the few gemstones that possesses several planes of cleavage, or atomic weakness. This makes them slightly more prone to breaking in a "step-like" fashion. Stones that do show a signs of fracturing or breakage should depict cleavage signs, at least in certain directions, instead of having several conchoidal fractures like glass, or CZ.



There Seems to Be Significant Signs of Abrasion and Scraching on the Surface Diamond (Especially During Post-Purchase Years)

As the hardest natural mineral in the world, cut diamonds should be very resistant to abrasions and surface blemishes caused by wear-and-tear. It is still possible for them to be scratched, chipped or bruised, but much less likely compared to fakes. Keep an eye out for high amounts of abrasion near the facet junctions, which can look like multitudes of sugary or grainy scratches that populate the edges of an already-polished stone.



The Stone Appears Slightly "Watered Down", Or Too See-Through When You Look at It With the Naked Eye

Diamond's high refractive index, combined with its hardness factor should allow for an optimum amount of light reflection when properly cut. Light should enter the stone, bounce around within its interior facets, and return to your eye. Many imitations, like colorless quartz, glass and even some cubic zirconia, will have brilliance that appears to muddled or watered down. This is because they possess different properties, which affect the way light travels through their material. When cut with the ideal proportions of diamond, these imitations may not present the same grade of brilliance (light reflection) that a diamond would show, and therefore look too see-through. Be careful though, some diamonds that are cut too shallow, will also appear this way, because of an effect called "windowing", where angles are proportioned inadequately and light leakage occurs.

These signs are not certainties, they are only indicators that you may want to have your diamond checked with a gemologist to make sure that it's actually a diamond. With all the rampant fraudulent business in the jewelry trade these days, many sellers too quickly give in to the temptation of vending a 10 dollar cubic zirconia as a 10,000 dollar diamond to novice buyers who don't yet know how to tell the difference. It is our mission here at Gemcamp to help Filipino diamond buyers make the best use of their funds and prevent themselves from being tricked into buying fakes and imitations.

Gemcamp Laboratories

A Discovery Institute for Gemstones and Gemology

Our resident gemologists believe in encouraging public trust within the jewellery industry through shared education, value transparency and professionalism.

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