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Non Heat Treated Sapphires by Pristine Gemstone Jewelry

Non Heat Treated Sapphires by Pristine Gemstone Jewelry

by Andrea Van Wilgenburg

Non Heat Treated Sapphires It is rare to find a sapphire that has not received heat treatment.  Approximately 95% of sapphires on the market have received heat treatment. Heat treatment is a common, stable, well accepted practice. It is basically an extension of the natural formation of gemstones; heat and pressure and it only causes subtle improvements in color and clarity, if at all. It is such a common practice that it is the only treatment of sapphires that is not required to be disclosed, as it is just assumed heat treatment is present. All other known treatments must be disclosed.  You will often notice in appraisals and gem certificates that heat treatment is mentioned ONLY if it is not present.  ...

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Morganite Engagement Rings and Alternatives

Morganite Engagement Rings and Alternatives

by Andrea Van Wilgenburg

Considerations about Morganite Engagement Rings Morganite Engagement Rings have become very popular due to the lovely soft pink or peach shades of the gemstone.  As a gem cutter having worked with gemstones for 25 years, morganite would not be my first recommendation as a pale pink or peach gemstone to be used for an engagement ring.  Morganites are not ideal for daily wear.  They are approx. 7.5 on the Mohs Scale, and there are more durable colored stones better suited to daily wear. Also, morganite is often irradiated to get its color, and radiation in morganites is not a stable treatment; therefore it can fade over time from exposure to natural sunlight.  There are other gemstones that come in similar...

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