CUBIC ZIRCONS
BUYING A CUBIC ZIRCON
Information Page
Cubic Zirconia Amethyst Marquise Loose Cubic Zirconia Amethyst Marquise is a man-made composition to simulate the Diamond. Due to a hardness of 8.5 and modern technical advances Cubic Zirconia has become a high quality and inexpensive gemstone. The cubic zirconia marquise shape is well accepted product in the jewelry industry.
Simulated Gems, also known as synthetic gemstones, are a group of gems that are not of the same chemical structure as their natural counterparts. The material within simulated gems can be various natural and/or man-made compositions. Our synthetic gemstones are made from Corundum.
The fine cutting, loupe clean and exceptional quality make them very popular. We are a worldwide supplier of synthetic gemstones and simulated gems and have been in operation since 1961, offering top quality for below wholesale prices. A large selection of bulk loose gem stones for sale in various shapes, colors and sizes is always available.
What is a CUBIC ZIRCONIA : The first successful attempt to create imitation gemstones dates back to 1937. Cubic Zircon is a man-made composition to imitate the Diamond, under laboratory conditionsWith modern technical advances in creating Cubic Zirconia’s it has evolved into a high-tech process for quality and superior clarity, shape and the formulation of many exciting colors. CZ’s have became an inexpensive and beautiful gemstone in their own right and best of all they are a very reasonable price compared to natural earth mined gemstones. CZ’s Hardness is 8.5 to 9 on the moh’s scale. diamonds being a 10. The cubic zirconia’s featured here are very popular within the jewelry industry and are in high demand due to their unique beauty to color perfection and the exact likeness to natural mined diamonds.
Cubic Zirconia’s or Diamonds? Cubic zirconia is so optically close to diamond that only a trained eye can easily differentiate the two. There are a few key features of cubic zirconia which distinguish it from diamond, some observable only under the microscope or loupe.
Dispersion: With a dispersive power greater than diamond (0.060 vs. 0.044) the more prismatic fire of cubic zirconia can be seen by even an untrained eye.
Hardness: Cubic zirconia has an 8.5 to 9.0 on the Mohs hardness scale vs. a rating of 10 for diamonds.
Specific gravity: Cubic zirconia crystals are heavyweights in comparison to diamonds; a cubic zirconia will weigh about 1.7 times more than a diamond of equivalent size.
Flaws: Contemporary production of cubic zirconia is virtually flawless, whereas most diamonds have some sort of defect, be it a feather, included crystal, or perhaps a remnant of an original crystal face (e.g. trigons).
Refractive index: Cubic zirconia has a refractive index of 2.176, compared to a diamond's 2.417.
Cut: Under close inspection with a loupe, the facet shapes of some cubic zirconias appear different from diamonds.
Color (or more precisely, the lack. thereof): Only the rarest of diamonds are truly colorless, most having a tinge of yellow or brown to some extent. By comparison, cubic zirconia can be made in most cases entirely colorless: equivalent to a perfect "D" on diamond's color grading scale.
Thermal conductivity: Cubic zirconias are thermal insulators while diamonds are among the most efficient thermal conductors, exceeding copper.
This makes telling the difference between diamond and cubic zirconia quite easy for those with the right instruments.
