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What Are Lab Diffusion Sapphires?
Composition and Structure:
Much like their natural counterparts, Lab Diffusion Sapphires belong to the corundum family. Their crystalline structure and physical properties mirror those of natural sapphires. These gems exhibit exceptional hardness, refractive index, and an array of breathtaking colors.
Creation Process:
Lab Diffusion Sapphires are meticulously grown in controlled laboratory environments. The diffusion technique involves introducing color-causing chemicals during heat treatment. This results in a thin layer of color on the surface of colorless or light-colored sapphire. The color concentration is stable under routine cleaning procedures but may be partially or completely removed during repolishing or recutting.
The Lab Diffusion Sapphire creation process is a marvel of modern technology. Here’s a closer look:
Seed Crystal: The journey begins with a colorless sapphire seed crystal meticulously placed in a controlled environment.
High-Temperature Diffusion: The crystal is then exposed to high temperatures in the presence of color-inducing elements like chromium or titanium. These elements slowly diffuse into the sapphire, creating a layer of vibrant color.
Precise Control: The entire process is meticulously controlled to ensure even color distribution and achieve the desired level of saturation.
At MMI Gems, we source Lab Diffusion Sapphires from reputable labs that prioritize controlled diffusion for optimal color consistency and long-lasting beauty.