Technical Information on Gemstones
An Introduction to Gemstone Inclusions
What are gemstone inclusions? Have you ever looked at a gemstone and seen unique features within the stone? Learn all about inclusions and how to identify them!
- 12th Jan 2020
- 4
Approved Gemstone Testing Laboratories
Gem Rock Auctions has one of the largest range of Certified Gemstones online. Browse this list of approved gemstone testing laboratories.
- 12th Jan 2020
- 8
- 2
Aventurescence Or Gemstone Schiller
In the world of gemstones there are special types of stones that show the Schiller effect or Aventurescence. Lets explore what these gems are and how they behave
- 12th Jan 2020
- 1
Azotic Treatment Of Quartz And Topaz
Azotic treatment of Topaz and Quartz is a treatment that creates a layer of color over a gemstone. Learn more about this treatment and check out our stones fro sale.
- 12th Jan 2020
- 2
Blue Sapphires: What Makes Sapphires Blue?
The color of a Sapphire is cuased by different impurities inside the gemstone. Titanium for example creates the beautiful deep blue that we love so much in Sapphires
- 24th Jan 2020
- 7
Colored Gemstone Grading
While there is a strict scale to grade Diamonds on that was devised by the Gemological Institute of America (GIA), there is not an international standard for grading clarity in colored gems.
- 12th Jan 2020
- 3
Colorful Garnet Gemstones To Suit Everyone's Taste
In the world of Garnet there is a multitude of colors to suit everyone's taste. Check out what colors Garnets are available in and how they are all related.
- 12th Jan 2020
- 9
- 4
Colour Changing Gemstones
Color changing gemstones are gemstones which change color in different lighting conditions. Learn more about these stones and browse our gemstones for sale.
- 12th Jan 2020
- 2
- 3
Emerald Inclusions - What The Inner World of Emeralds Can Tell You
Emerald Inclusions are fascinating. inside each Emerald the tiny inclusions tell a story about where the gem came from and how it formed.
- 12th Jan 2020
- 9
Four Tools For Gemstone Testing
There are so many tools on the market for testing a gemstone, but what are the main tools required for simple analysis. Lets look at four tools for gemstone testing.
- 12th Jan 2020
- 23
- 6
Gemstone Compliance
Compliance issues in the Gemstone Industry are affecting countries worldwide. Sellers will face audit requests to prove the legitimacy of their business.
- 12th Jan 2020
- 4
Gota De Aceite Emeralds
Gota De Aceite Emeralds have a special feature which increases their value. Read more about this rare type of Emerald and learn how it adds to the value.
- 12th Jan 2020
- 6
How Do Gemstones Form?
How do gemstones form in the earths crust? It is far more complicated than first thought but we have broken it down to make it easier to understand
- 12th Jan 2020
- 4
How Do They Treat Ruby Gemstones?
Have you ever wondered how they treat Ruby gemstones? There are so many different types of treatments on the market and we will help to explain them
- 12th Jan 2020
- 18
How Does Alexandrite Change Color?
Alexandrite is one of the rarest gemstones on the planet. It has the ability to change colors under different light. Lets explore how it does that
- 12th Jan 2020
- 3
Is Amber a Mineral?
Amber is a gemstone, but it is not a mineral. Let's explore what makes Amber tick and why its not considered to be a mineral.
- 12th Jan 2020
- 4
MOHS Hardness Scale For Gemstones
The MOHS scale of hardness is universally used when describing gemstones. But what does it mean and how can you use it help protect your gems and jewelry
- 12th Jan 2020
- 8
Oregon Sunstone Durability And Hardness
The hardness of Oregon Sunstones ranges from 6.0 to 6.5 on the Mohs Scale. It’s a suitable for a wider variety of jewelry types because of its hardness rating.
- 12th Jan 2020
- 1
Pearl Treatments
There are many treatments for Pearls that change their apperance. Most of these treatments are acceptable. Learn more about this gemstone and browse the beautifully cut stones we have for sale.
- 12th Jan 2020
- 5
Phenomenal Gemstones — Gemstones with Optical Properties
Ever heard of phenomenal gemstones? These gemstones display amazing optical effects under different lighting, such as cats eyes and stars. Read more about these amazing gems..
- 12th Jan 2020
- 1
Physical Properties of Gemstones
Each gemstone has it's own unique set of physical properties that can be used to identify it. These include hardness, growth patterns and cleavage. Learn more about the physical properties of gemstones.
- 12th Jan 2020
- 5
- 3
Rainbows and Fire: What is Gemstone Dispersion?
Why do certain gemstones have a rainbow effect? What is gemstone dispersion? Learn about the amazing fire effect of gemstone dispersion and which gems have it.
- 12th Jan 2020
- 1
Sapphire Gemstone Treatments On Gem Rock Auctions
Sapphires listed on GemRock Auctions are categorized in regards to the treatment methods used. Learn how we deal with treatments.
- 12th Jan 2020
- 2
Sapphire Treatments
Sapphire Treatments refers to the process of improving the clarity, colour and value of Sapphires that have been mined out of the ground.
- 18th Jan 2020
- 13
- 2
The Four Cs Of Diamond Quality
The Four C's are a standard definition on how to describe and judge the quality of a Diamond. let us explain it in more detail.
- 12th Jan 2020
- 6
Types Of Quartz And The Enhancements Or Treatments Used
Quartz Crystal is one of the most common Minerals on Earth. It is one of the most loved gems and for centuries has been used for jewelery and carvings. Quartz Crystal is one of the most common Minerals on Earth. It is one of the most loved gems and for ce
- 12th Jan 2020
- 3
What are Synthetic Gemstones, Imitation and Simulants?
What are Synthetic Gemstones, Imitation and Simulants? We will explain the difference and how some of them are created.
- 12th Jan 2020
- 7
- 2
What Causes The Color In Oregon Sunstone?
Sunstone occurs in a range of colors that begins with colorless and ranges through to yellow, orange and red. The color is determined by the abundance and size of the copper platelets within the stone.
- 12th Jan 2020
- 2
What is a Carat And Is It Related To Karat?
Carat and Karat are two terms you will here in the Jewelry business that sound exactly the same. They have very different meanings though.
- 12th Jan 2020
- 2
What Is A Mineraloid
A mineraloid is a substance that is very similar to a mineral, but it does not demonstrate crystallinity.
- 12th Jan 2020
- 2
What Is Aquamarine Made Of?
Aquamarine is made of a Beryllium, Aluminium Silicate and is part of the Beryl family of minerals. Beryl can be many colors but when it’s blue or blue-green it is called aquamarine.
- 12th Jan 2020
- 2
What is the Crystal shape of Garnet?
The main crystal shapes of Garnets are dodecahedral and trapezohedral. Both shapes are polyhedrons, which are three-dimensional geometric figures with flat faces.
- 12th Jan 2020
- 0