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What Are Birthstones Actually Made Of? Natural, Lab-Created and Cubic Zirconia
Ask what the stone in a birthstone necklace is made of and there are three honest answers — a mined gemstone, a lab-grown gemstone, or a lab-made lookalike — plus a fourth answer that is vague only because someone chose to keep it that way. The three honest ones are all legitimate. The fourth is the one worth walking away from. This guide names the materials: what cubic zirconia physically is and why it throws more colored fire than a diamond, why a lab-created ruby is chemically a ruby rather than an imitation, how hard each of the twelve traditional...
