9ct Yellow Gold stud earrings, the Diamond look for a fraction of the cost. Set with round Diamond white Cubic Zirconia. Made from solid 9ct Gold - not gold plated in any form. Very dainty and lightweight, very comfortable to wear. Perfectly suitable for all age groups.
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There are a few key features of Cubic Zirconia which distinguish it from Diamond:
Hardness. This causes sharp edges to facets in cut crystals to dull and round off in CZ, while with Diamond the edges remain sharp.
Cut: Cubic Zirconia gemstones may be cut differently from Diamonds. The facet edges can be rounded or "smooth".
Colour: A Cubic Zirconia is often entirely colourless: equivalent to a perfect "D" on Diamond's colour grading scale.
Thermal conductivity: Cubic Zirconia is a thermal insulator whereas Diamond is the most powerful thermal conductor. This is the way most Diamond testers work; by testing thermal conductivity.
