Why Are Untreated Emeralds More Expensive?

Two emerald stone may appear physically similar, yet they can differ significantly in price. One of the biggest reasons for this price difference is the level of treatment the gemstone has undergone. An untreated emerald stone price starts from INR 5,000 to INR 5 lakhs per carat and more.   

On the contrary, the treated emerald price is 40% less than the untreated counterparts. From oiling to fracture filling, these gemstones undergo many treatments. But untreated stones are natural and rare, making them significantly valuable and a collector’s choice. These gems are limited in supply, and this is the primary reason why they are expensive. Besides exploring why untreated emeralds ( Panna stone ) are so expensive, this blog also shares practical tips to help you buy an authentic untreated emerald with confidence. 

What Is an Untreated Emerald? 

An untreated emerald means a natural emerald sourced from earth surface that has not undergone any enhancement. These gems have a natural green color, which is due to the presence of chromium. In untreated panna, the inclusions may vary from a few to many, but these are natural and formed during the gemstone's occurrence. Because of their natural occurrence and physical appearance, untreated emeralds fetch premium prices. 

Why Are Untreated Emeralds More Expensive? 

It's not just the occurrence that makes these untreated stones expensive, but there are many reasons behind it: 

• Natural Formation Is Extremely Rare 

Natural emeralds are formed when rare elements like beryllium, silicon, oxygen, and aluminium combine with trace elements like chromium, vanadium, and iron. This interaction takes place under high pressure and temperatures. The formation of emeralds takes place inside the Earth's surface over millions of years, which makes them distinct and rare. 

• No Artificial Enhancement 

What makes untreated emeralds more expensive is their rich natural green color. This color resembles nature’s color, making these untreated stones rare. Since these gems undergo no treatment, their original beauty remains pure like nature, making them valuable. 

• Better Long-Term Stability 

Emeralds generally undergo oil treatment. Oil may dry out over time, which may result in cracks in the stone. Other treatments such as resin filling also discolors the stone, making it appear yellow. Untreated emerald stones do not discolor or fade over time. They are natural and do not face any of the concerns like fading or cracking because their beauty is not dependent on artificial enhancements. Thus, untreated or no-oil-treated emeralds have better long-term stability. 

• Higher Demand  

Untreated emeralds are directly sourced from the earth's surface. Their pure beauty makes them highly desirable stones for high-end investment and astrological purposes.  

• Investment Potential 

Untreated emeralds are best for luxury buyers and long-term investors. They are rare because of limited supply in the market, thus making them best to invest in. The value of these gemstones appreciates over time depending upon quality.

Read More: Are Emeralds A Good Investment Compared To Other Gems?  

Does Origin Affect the Value of Untreated Emeralds? 

Yes, origin influences the value of untreated emeralds, but other factors such as color, cut, clarity, and carat weight also contribute to it. However, when two untreated panna stones are comparable, the gemstone's origin often becomes an important deciding factor for buyers, collectors, and investors. There are three major mines from which emeralds are sourced, namely Colombia, Zambia, and Brazil. Afghanistan, Pakistan, and India are also known to produce these gems.   

An untreated Colombian emerald shows excellent bluish green color with high clarity. These are the most valuable gemstones in the world and command higher prices. Next to these are untreated Brazilian and Zambian emeralds. While Untreated Brazilian emeralds are known for their greenish hue with a yellow tint, untreated Zambian emeralds are valued for their exceptional clarity.   

Whether you are a gemstone collector or a fashion enthusiast looking for premium untreated emeralds, Colombia is the best source, followed by Zambia and Brazil. 

Read More: What Are The Top Sources Of Emerald Stone?  

How Can You Verify an Emerald Is Truly Untreated? 

Verifying an emerald as untreated is not more than just a visual inspection. Not every natural emerald qualifies as untreated. Here is when you need to know about these: 

• Request a Reputed Laboratory Certificate 

Without a laboratory certificate, you cannot determine whether an emerald stone is treated or untreated. A well-trained gemmologist analyses the gemstone and then verifies the laboratory report. Only consider genuine gemstone certificates from GIA, SSEF, Gübelin, and GRS. For emeralds, GRS, IGI, and GRS are the main gemstone laboratories that issue certificates describing whether the panna is natural or synthetic. These laboratories also tell you about the type of treatment the stone has undergone. 

• Read the Treatment Section Carefully 

It is important to read the treatment section before you buy an untreated emerald stone. If the report states "No Indications of Clarity Enhancement," it means that the stone has not undergone any of the treatments that clear out inclusions. 

• Buy from a Trusted Gemstone Dealer 

Since untreated panna stones are expensive, make sure you buy them from a trusted gemstone dealer only. A trusted dealer here means the one who provides you with a gemstone certificate of authenticity stating that this stone is natural and has not undergone any treatment.   

Also Read: How Can I Test If My Emerald Is Authentic At Home?  

Are Untreated Emeralds Better for Astrology? 

Yes, untreated emeralds are best for astrology. This is because they are directly sourced from the earth's surface, making them pure enough to carry the respective planet’s energy. If you seek fast Mercury effects, then untreated panna stone is the best.

Read More: Which Emerald Is Best For Astrological Use?  

Buying Tips Before Paying a Premium 

• Verify the gemstone certificate.
• Understand the type and extent of treatment, like significant, minor, or no treatment.
• Compare stones with similar color, clarity, and size.
• Buy from a trusted seller with transparent disclosure. 
• Evaluate overall quality, not just untreated status.

To conclude, emeralds are in high demand. Whether you seek long-term investment or astrological benefits, only untreated panna stands out for its rarity, effectivity, beauty, and authenticity. If you are looking for high quality untreated emerald gemstone, then Navratan is the best place to visit.