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Summary of Created White Sapphire
Created white sapphires, also known as synthetic or lab-created white sapphires, are gemstones made of corundum. They are produced in controlled laboratory environments using advanced technological processes—such as the Flame Fusion method—to simulate the high-pressure and high-temperature conditions found in the Earth's crust. The process often begins with a seed crystal and involves dissolving aluminum oxide, with growth occurring over weeks or months to achieve exceptional clarity and brilliance.
Gemological Properties and Comparison - Chemical Composition: They share the same chemical properties as natural white sapphires (corundum). - Hardness: They possess a hardness of 9.0 on the Mohs scale, making them highly durable and resistant to scratches and wear. - Appearance: They are colorless and exhibit high clarity and brilliance. To the untrained eye, they are nearly identical to natural white sapphires. - Comparison to Cubic Zirconia (CZ): Created white sapphires are harder and more resistant to wear than CZ.
Market and Application Due to mass production, particularly in Chinese factories, these stones are significantly more affordable than natural white sapphires. They are widely used in fine and fashion jewelry, including engagement rings, as a durable and cost-effective alternative to diamonds. They are available in a vast array of shapes (round, oval, princess, pear, marquise, heart, octagon, and cushion) and various sizes.
Advantages - Sustainability: They are considered an ethical and environmentally friendly alternative to mined gemstones, avoiding the human rights and environmental concerns often associated with mining. - Quality: Because they are grown in controlled settings, they are more consistent in quality and less likely to contain the inclusions found in natural stones.