||Common stones that this treatment applies too
||This is the detection of a stone being heated by tradition methods. This involves putting a gemstone in a furnace and controlling the temperature as well as the environment inside the furnace to improve the clarity and colour of a gemstone
||Sapphire, Ruby, Dementoid Garnet, Tanzanite, Citrine, Aquamarine, Paraiba Tourmaline, Apatite, Zircon
|Heat Treatment with light elements
||This is sometimes referred to as New heat, Advanced heat or Beryllium Treatment. Like tradition heating, the gemstones re placed inside a furnace and heated, however in this case additives such as Chrysoberyl powder are added to the environment. The Chrysoberyl powder contains beryllium which penetrates the gemstone and gives it a new colour.
|Heat Treatment with foreign objects (Glass filled ect)
||This form of heat treatment adds a foreign substance into the gemstone which will help to fill up cracks and reduce the visibility of them. The most common gemstone is the Glass Filled Ruby.
||Ruby, Sapphire, Diamond, Aquamarine, Morganite
|Heat Treatment with Surface Diffusion
||The for of heat treatment adds elements into the furnace that cause colour. For example, Titanium help create the blue colour in Sapphire. If Titanium is added to the furnace, a thin layer of Titanium will bond to the crystal of the Sapphire and create a more brilliant blue. This colour is only a very thin layer as it does not penetrate deeply into the gem.
||Synthetic gemstones are gemstone that have the exact same chemical composition, gemmological properties and look as a natural stone, however they created in a laboratory by man.
||Ruby, Sapphire, Diamond, Emerald, Spinel, Quartz, Amethyst, Citrine, Ametrine, Aquamarine, Morganite
||The are gemstones that look like their natural counterparts, but are made of a different material. Example red glass imitating a Ruby
||All gemstones can be imitated
|Gemstones that have been Oiled, Dyed, Impregnated**
||Some gemstones can have their colour improved by bleaching them and dying them with colouring agents.
||Jade, Turquoise, Malachite, Howlite, Sapphire, Ruby, Lapis Lazuli, Coral, Emeralds,
||Origin determination uses a huge database of information to determine where a gemstone came from. Generally the chemical composition and the inclusions will give a very good indication of origin. Each gemstone lab will have their own database, so the bigger gemstone labs will have more of a chance of being able to identify where the gemstone has come from. This can have great bearing on the price and gemstones from certain localities are rare.
||Ruby, Sapphire, Emerald, Paraiba Tourmaline
||This refers to the correct grading of diamonds using the 4C’s that was originally developed by the GIA. The GIA has the master set of Diamonds that all other diamonds are compared against for colour.
|Report Authentication Available
||In this day and age, there are people who will forge or create false identification reports. To combat this problem, many of the gemmological laboratories offer a report authentication service.