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Standard Gemstone Treatments. We sell many types of gemstones.  From rough stones that have been polished to color-enhanced diamonds.  Many of the treatments are regulated by the FTC.  Definitions of them are listed below.  If you have any questions about the jewelry you are purchasing from us, please contact us sales@generousgems.com

Assembled: the tag code for products made of multiple layers or combinations of manufactured and/or natural materials fused, bonded or otherwise joined together to increase stability and/or imitate the apperance of a natural gemstone, create a unique design or generate unusual color combinations

Bleaching: The use of chemicals or other agents to lighten or remove a gemstone’s color.

Coating: The use of such surface enhancements as lacquering, enameling, inking, foiling, or sputtering of films to improve appearance, provide color or add other special effects.

Dyeing: The introduction of coloring matter into a gemstone to give it new color, intensify present color or improve color uniformity.

Enhanced:  Many stones are enhanced for color.  It is a permanent process routinely done.

Filling: As a by-product of heat enhancement, the presence of solidified borax or similar colorless substances which are visible under properly illuminated 10X magnification.

Gamma/Electron irradiation: The use of gamma and/or electron bombardment to alter a gemstone’s color ; may be followed by a heating process.

Heating: The use of heat to effect desired alteration of color, clarity, and /or phenomena. (Residue of foreign substances in open fractures is not visible under properly illuminated 10X magnification.

Infilling: The intentional filling of surface breaking cavities or fractures usually with glass, plastic, opticon with hardeners and/or other hardened foreign substances to improve durability, appearance and/or weight.

Imitation stones are man-made stones.

Lasering: The use of a laser and chemicals to reach and alter inclusion in diamonds.

None:  some stones have NO treatment.

Oiling/Resin Infusion: The intentional filling of surface breaking cavities of a colorless oil, wax, natural resin, or unhardened man-made material into fissured transparent/translucent gemstones to improve appearance. (i.e., oil, man-made resin, cedar wood oil, Canada balsam, paraffin, etc.)

Irradiation: The use of neutron, requiring an environmental safety release from the Nuclear Regulatory Commission (NRC), with the combination of any other bombardment and/or heat treatment to alter a gemstone’s color.

Bonding: The use of a colorless bonding agent (commonly plastic) within a porous gemstone to give it durability and improve appearance.

Synthetic:  gems that are "lab" or synthetic have the same properties as natural gems but are grown in labratory conditions.

Diffusion: The use of chemicals in conjunction with high temperatures to produce color and/or asterism-producing inclusions.




Buying Gold Jewelry
All of our jewelry meets the requirements set forth by the National Gold and Silver Stamping Act and the FTC.  With the increased popularity of white gold we have found it necessary to reinforce the fact that gold, in nature, is yellow.  It is alloyed to make it different colors (pink, rose, green or white).  All of the white gold or silver looking jewelry on our site is typically rhodium plated (visit this page for rhodium and gold information
http://www.generousgems.com/gold_info.html.

All of our stamped jewelry (10k, 14k, 18k or higher) meets both the FTC and National Gold and Silver Stamping Act regulations.  If the item is stamped or stated to be 14k gold it is 14k gold.  It if is a 14k white gold item please note that white gold is an alloy of gold and some white metals such as nickel, silver and palladium.  White gold can be 18k, 14k, 10k or any karat.   18 karat white gold is made by mixing 75% gold with 25% other metals such as nickel, silver and palladium.  So the amount of gold is the same but the alloy is different.   White gold is by practice rhodium plated.  It may not be disclosed that an item has been rhodium plated.  Why?  Because the piece, by weight and fineness (18k, 14k, 10k, etc) is gold.  The plating, while adding to the look of the piece, does not change the quality of the piece.  It only prolongs how long the white will look white.  Again, white gold does not exist in nature, it is an alloy of yellow gold. To keep a white gold ring looking its best it should be re-rhodium plated approximately once a year.  If the wearer has a high acid content in their body chemistry, or wears cosmetics or lotions or uses soaps with metallic oxides, it may have to be plated more frequently.

Some items on our site may not be rhodium plated, the white gold will have a yellower appearance than rhodium plated items.  However, again, most items are rhodium plated.  If you truly want a white look, the only way to do so is to buy
platinum which will be white forever.  If you have a question about a particular item contact us first (sales@generousgems.com)
Gemstone Treatments and Gold Info