A diamond or diamond jewelry buyer are mostly in a dilemma that whether the diamond being purchased by them is fake or real one. Although the gemologist or seller can use proper tools and equipments to recognize the stone, for a naive buyer this could be a difficult task with the naked eye.
Cubic Zirconia, Moissanite, Russian Diamonds, Diamond Nexus, Gemisis Diamond and White Sapphire belong to the category of Fake diamonds and have their unique features. Some techniques that are used to identify fake diamonds may work for just few of them and not all. For example, the cubic zirconia stone is heavier in weight than real diamond by approximately 50% provided both the stones are of same size and shape. Hence CZ can be differentiated from real diamond based on the weight factor.
Another identification technique is the Transparency test. In this, the stone is placed up-side down on a paper with written characters. If the characters seem to be readable then you can be sure that the diamond is false, since written material cannot be read through a real one.
Blow some air on the stone from your mouth to fog it. If the fog stays on the stone, it means the stone is not real diamond. Heat gets dispersed quickly on real diamonds resulting in absorbing the fog within no time.
When a real diamond is held under ultraviolet light, it emits blue colored light. The same goes for it when held under black color. The disadvantage of this technique is that along with fake diamonds, high quality diamonds also do not emit the intended blue colored light.
A real diamond always reflects shades of the color grey and white and does not emit rainbow reflections. These rainbow reflections can be seen from fake diamonds or real but low quality diamonds.
Genuine diamond sparkles from all sides, no matter which angle it is view from, whereas in fake diamonds the sparkle is seen from the top only and looks dull from side angles.
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Cubic Zirconia, Moissanite, Russian Diamonds, Diamond Nexus, Gemisis Diamond and White Sapphire belong to the category of Fake diamonds and have their unique features. Some techniques that are used to identify fake diamonds may work for just few of them and not all. For example, the cubic zirconia stone is heavier in weight than real diamond by approximately 50% provided both the stones are of same size and shape. Hence CZ can be differentiated from real diamond based on the weight factor.
Transparency Test
Another identification technique is the Transparency test. In this, the stone is placed up-side down on a paper with written characters. If the characters seem to be readable then you can be sure that the diamond is false, since written material cannot be read through a real one.
Fog Test
Blow some air on the stone from your mouth to fog it. If the fog stays on the stone, it means the stone is not real diamond. Heat gets dispersed quickly on real diamonds resulting in absorbing the fog within no time.
Ultraviolet test
When a real diamond is held under ultraviolet light, it emits blue colored light. The same goes for it when held under black color. The disadvantage of this technique is that along with fake diamonds, high quality diamonds also do not emit the intended blue colored light.
Reflection Test
A real diamond always reflects shades of the color grey and white and does not emit rainbow reflections. These rainbow reflections can be seen from fake diamonds or real but low quality diamonds.
Sparkles
Genuine diamond sparkles from all sides, no matter which angle it is view from, whereas in fake diamonds the sparkle is seen from the top only and looks dull from side angles.
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