Best Art Deco Wedding Band Ideas - April 23, 2023.White synthetic sapphire do have a certain amount of demand due to the usage in engagement rings but secondary to natural or synthetic diamonds and natural white sapphire. Many lab created sapphires are thus now creating easy to make colors like white or pink. High color intensity, particularly of the blue synthetic sapphire are tough to create, thus becomes expensive in making. Most prominent lab created sapphires come in colorless or white, blue, red (ruby), pink and orange. US Federal Trade Commission regulates that all synthetic sapphires must disclose the nature of the gemstone throughout the supply chain. However consumers should be careful in buying the gemstones not to be deceived by synthetics for a price of a natural sapphire. The rough material before cutting and polishing is always valued less compared to faceted synthetic sapphires. However the synthetics made through flux or hydrothermal methods are comparatively expensive up to few hundred dollars per carat where blue corundum being the highest priced. Price per carat sometimes falls down only to few dollars or even less.
Lab created sapphire made through melt process are valued very low at bulk purchasing. These diffuse treated synthetics are easy to identify through lab testing and it display the color concentrations at the facet lines and gradle edges. These synthetic sapphires will exhibit colors only on the surface of the stone and cannot re-cut or re-polished.īlue Color Diffused on to a Colorless Synthetic Sapphire This process involves infusion of color giving materials on to the surface of a cut synthetic gemstone.
However there is a notable difference when it comes to diffusion treated synthetic faceted sapphires. The only difference is the process that was involved to create them. The hardness score is 9 therefore even the lab created sapphires can withstand the tear and wear to the same extent as natural sapphire. Natural SapphireĪs long as the chemical and material composition is concerns both are the same. However the synthetics made of solution process has superior quality in terms of the evenness of corundum properties and color distribution. These two methods are quite expensive and take up to a year, may be more to produce the stones. Whereas hydrothermal method involves creating the natural crystal growing environments in a lab. Notably two methods known as flux growth and hydrothermal growth.įlux growth involves dissolving the growth materials in a solution and cooling. Solution ProcessĪn advanced way of making the synthetics. The process and the materials used during the melt process allows it to be sold at a lower rate. The sapphires or the corundum are grown in a matter of days with this method.
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