Real Gem Stones & AGTA American Gem Trade Asc Approved Trade Methods In All Real Gems
Ancient Egyptians used to simply place natural mined Rubies into fire for extensive amounts of time. During this process, black carbon and surface impurities were pealed off by the fire and degree heat. The same practice is still used today with Gemstones. Natural gemstones react to heat and are commonly used as standard natural gemstone process from rough form to final jewelry piece. Gemstone is heated to high degrees which is called gemstone heating.
Most real Blue Sapphires today are heated to high degrees during natural faceting process. Anyone claiming that natural mined real Blue Sapphire is not heated during natural faceting process, is something very unusual and highly questionable. Typically when verified such unusual claims, that natural Blue Sapphire Gemstone is not heated or other eccentric index statements, such are 99% of times false claims.
There are many Sapphires that are not heated at some point. However, since a majority of Blue Sapphires are processed from rough to any given jewelry piece today with heat associated, it is highly recommended to verify any unheated advertisements with you local Gemologist. Many like to advertise with unheated false claims knowing that people new with gemstons might think heat is something bad or even fake, while in fact part of the natural gemstone process from rough to jewelry piece.
Gem Trade word treatment is important to double check, since as per The Lapidary Journal, many tend to consider as something bad apart of its entire context. If one wants to seek non heated blue Sapphires, then one must use extreme caution since such are generally very rare. Heat treatment can be seen under microscope. Heat leaves wavy cloudy lines to gem and can be seen under close microscope inspection.
Another aspect with heat is that some real gemstones simply do not or would not exist without treatment process in their jewelry used form. Every natural mined real Blue Topaz in general daily gem trade is treated during natural faceting process. While a hand full of Blue Topaz rough have been found in the world, those are very pale in blue and close to museum display level items. Topaz, in its natural rough form is a dirty white gemstone. Typically Topaz's are treated with heat, radiation, irradiated, diffusion, Azotic coating or with titanium atom. All Mystic Topaz's are Titanium Atom treated in the world and hot pink Topaz's do not exist in non treated form.
It is important to always use caution from any item sold anywhere, wether in retail stores or on Ebay. Any claims of non treated stones today can be often verified false by your local Gemologist. As always, it is recommended to require such in writing and most importantly with full money back guarantee as well as payment protection since such to not exist in regular daily real gem & jewelry trade.
Dyeing: Mainly Onyx. Without dyeing, there would be no black onyx and not a natural color of chalcedony. Color enhancement method of dyeing organic gem materials to disguise poor quality goods
Impregnation and stabilization: Turquoise impregnation - infusion of wax or paraffin into a porous material. Stabilization - introduction of a bonding agent into a porous material. It can bring an improvement in clarity and brightness.
Bleaching: Ivory, coral, pearls. Bleaching process of organic gem materials to jewelry use.
Diffusion: Trade approved, but unethical method, if not clearly disclosed. Man made color change to organic gem materials. Beryllium, is infused at high temperatures, and actually penetrated the gems. Please note that in Asia, it is trade approved to just state: Beryllium treated...USA requires term: Diffusion treated. Both means the same.
Thank you.
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