WHAT IS GEMMOLOGY?
Gemmology is the study of natural, synthetic and imitation Diamonds, Gemstones and Semi-Precious Stones
Gemmology is a science that deals with the technical understanding of Precious and Semi-Precious stones, such as Diamonds, Sapphires, Topaz, Pearl.
Gemmologist identify and evaluate stones by using special hand-held small equipment or machines such as a 10x lens, polariscope or refractometer.
Looking at the cut, colour and clarity of each stone, they identify flaws and grade or evaluate a stones to determine if it is a natural, treated or imitation stone.
A 1-day course will not make a Gemmologist of you.
However you can learn basic identification methods, and terminology useful in the buying process.
A 1-day introduction to Diamond Grading course can help you understand the basics of the following subject areas;
Learn how Diamond Grades Differ
Learn what the process for Grading Diamonds for cut, colour and Clarity is
Learn how a diamond carat weight is determined
Which factors Testing laboriatories require for their reports.
All a useful product knowledge introduction for retailers.
Gemstones are minerals with naturally occurring crystals. Colours are defined by how light is absorbed by the crystal within the mineral and/or from metal impurities within the mineral.
Gemstones diversity is due to their formation at different depths within the Earth. Composition is affected by many factors such as; Chemical elements, time, temperature, pressure and space.
Organic material such as Pearl, Coral or Jet can also be classified as gemstones.
Choose a Gemstone, learn how it is formed and about its chemical composition
Treatments made to stones can alter their colour or clarity in order to falsely enhance a perceived value of a stone.
Treatments can also effect a stones natural durability.
Depending on the stone, treatments can include;
Heat / High Temperature Laser Drilling Diamonds; Irradiation
Learn to identify the indicators of treatments
WHAT ARE SYNTHETIC DIAMONDS?
Synthetic Diamonds are a type of man-made carbon.
They are manufactured in a laboratory that re-creates artificial chemicals, heat and pressure similar to Earths natural geological forces.
The most common form of Diamond synthetics or simulants are;
Moissanite and Cubic Zirconica (CZ)
Learn to spot the differences between a synthetic and real diamond.
SIMULANT / IMITATION STONES
A simulant diamond or gemstone can be artificial (laboratory created) or a similar natural or a combination of both.
Differences to genuine stones can be indicated by checking properties such as;
Learn how to identify a simulated stone