Diamonds: Weight And Total Carat Weight We certify that your jewelry purchase is made with authentic gold or platinum with genuine diamonds and/or gemstones as per the quality promised by Jewelstree. Please note that the total carat weight (tcw) of diamond solitaire pieces may vary from the listed carat weight by .01 to .05 carat. The total weight of multiple diamond gemstone pieces may vary between .01 to .08 carat from the listed carat weight.
Precious And Semi-Precious Gems Most natural precious and semiprecious gemstones are treated or enhanced to intensify color, diminish imperfections, and improve durability. Explained below are the most common and accepted treatments for different types of colored gemstones.
Oiling Oiling is an ancient process that is used to enhance the clarity of emeralds. Oil is applied to the emerald and seeps into naturally caused fissures that reach the stone's surface. Aside from improving clarity, this process may prevent brittleness. Generally, oil treatment does not provide permanent results, and oil may need to be reapplied every few years. Special care is required for cleaning, repairing, or mounting oiled stones.
Heating Heating is a widely accepted enhancement process that is used to treat rubies, sapphires, amber, aquamarine, amethyst, citrine, tiger eye, tanzanite, topaz and tourmaline. This treatment improves the transparency of the stone and enhances its color. Since heat generally produces permanent results, heated stones do not require repeated special treatments.
Diffusion Diffusion is a method that is occasionally used on sapphires. During treatment, a colorless sapphire is coated with a compound of titanium and oxide and is exposed to heat. This enhances and/or changes the color of the stone and generally does not require special follow-up treatments.
Irradiation Irradiation is a type of heat treatment that is often used on blue topaz gemstones. The brown stone is irradiated to produce the blue color. Irradiated stones do not require special care.
Should you have any further questions or concerns regarding diamonds, gemstones, precious metals and/or Jewelstree's jewelry selections, please feel free to reach us at customerservice