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Table of contents
- The two gemstones are similar in color
- Teal sapphires can come with a variety of treatments
- Montana sapphires are usually untreated
- What does natural teal sapphire contains?
- Origin of Teal sapphires
- Origin of Montana sapphires
- The appearance of Teal sapphires
- The appearance of Montana sapphires
- Cost of Teal sapphires and Montana sapphire
The two gemstones are similar in color
One of the most distinguishing features of Montana sapphires and teal sapphires is the fact that they are both blue-green in color. This means that from a distance, you might even mistake one gemstone for the other.
However, this does not mean that all teal sapphires are exactly like Montana sapphires. The colors can vary dramatically depending on the specific stone, so there is a good chance you will find differences when you look closely at either gemstone.
Teal sapphires can come with a variety of treatments
When it comes to choosing a shade for your gemstone, there are two main factors that affect the quality of the stone’s color:
For heat treatment, a teal sapphire is heated in an oven at a temperature of 250 degrees Fahrenheit or greater. Heat treatment is considered to be riskier than the other teal sapphire treatments because you’re exposing the stone to elevated temperatures, so keep this in mind when making jewelry purchases.
Montana sapphires are usually untreated
You’ll be pleased to know that, unlike many other precious gemstones, Montana sapphires are usually untreated. Most other sapphires are heat-treated to enhance their color and clarity. Heat treatment is usually not necessary with Montana sapphires because of their naturally rich colors, so you can rest assured that your stone is natural.
What does natural teal sapphire contain?
Natural teal sapphires contain inclusions, which are small minerals or particles that appear within the stone. These inclusions can look like cracks, imperfections, or tiny bubbles and are visible to the naked eye. While it is common for natural teal sapphires to have inclusions, a well-cut stone will disguise them and minimize their effect on the color.
Origin of Teal sapphires
Teal sapphire is mined in Sri Lanka, Madagascar, and Nigeria, where it is found along with other semi-precious gems such as emeralds, rubies, garnets, and topaz. In Sri Lanka, they are commonly found in gem gravels that contain ruby or star ruby.
Origin of Montana sapphires
Montana sapphires were first discovered in the 1860s, but it wasn’t until 1892 that the Yogo Gulch sapphire deposit was discovered and commercial production began.
The appearance of Teal sapphires
Teal sapphires are cut in a variety of shapes and sizes. The most common cuts are the round and oval, which allow the maximum amount of light to reflect out of the stone.
Teal sapphires that are cut too deep or shallow can lose light through the sides or bottom, making them appear less brilliant.
The appearance of Montana sapphires
For all their inclusions, Montana sapphires have the benefit of being found in the rough and then sold as-is. They’re rarely treated, whereas teal sapphires are often heat-treated to achieve their color. Montana sapphires also show more clarity than their teal counterparts, despite generally being cut larger and having a larger carat weight.
Cost of Teal sapphires and Montana sapphire
The other benefit to teal sapphires is that they are generally less expensive than their Montana sapphires. This is due to the fact that they’re more prevalent, and therefore available in greater quantities.
If you’re in the market for a loose teal sapphire, you can expect to pay anywhere from $75 – $500 per carat. If you want a Montana sapphire of similar color and cut quality, you could be spending anywhere between $250 – $1500 per carat.
Also See: What Is A Black Spinel?