Clarity of the stone
Cubic Zirconia is much more porous than a mined diamond. This means that, over time, a Cubic Zirconia will absorb dirt and oils causing it to turn cloudy.
Nexus Diamond alternatives are however coated with a proprietary Sapphire (Corundum) coating material to eliminate porosity, so your Nexus Diamond alternative should not crack or discolor.
Most CZ jewelry sells for VERY low prices (like $100 or less). This is because a vast majority is made on an assembly line using low-cost composite metals.
At Diamond Nexus we set all of our stones in jewelry quality metals hand-crafted by world class jewelers. So not only do you get an amazing stone but that stone will be displayed in some of the most beautiful settings in the world.
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