Tanzanite is a stunning and rare gemstone that has become increasingly popular in recent years. It is known for its unique violet-blue color, which ranges from deep royal blue to light lilac. As the demand for this beautiful blue gemstone grows, it is essential to know what to look for when buying tanzanite. This guide will help you understand the different factors to consider when purchasing tanzanite gemstones, so you can be sure to get the best quality stone for your money.


Tanzanite is a rare and exquisite gemstone that was discovered in the 1960s in the Mererani Hills in northern Tanzania, Africa. Tanzanite is a blue or violet-blue variety of the mineral. Tanzanite is known for its unique color-changing properties, which is caused by pleochroism, a phenomenon in which the gemstone exhibits different colors when viewed from different angles. Tanzanite's color can range from light blue to deep violet-blue, with the most desirable being a rich, saturated blue. This gemstone has become increasingly popular due to its rarity and beauty and is now considered one of the most sought-after gemstones in the world.


Tanzanite Buying Guide ChecklistWhen purchasing tanzanite gemstones, there are several important factors to consider to ensure that you are getting the best quality stone for your money.

• One of the most crucial factors is the color of the tanzanite. Tanzanite comes in various shades of blue, ranging from light lilac to deep royal blue. The most valuable and desirable tanzanite is a rich, vibrant blue color. When examining tanzanite, look for stones with consistent and even color distribution throughout the gem.

• Another factor to consider is the clarity of the tanzanite. Like most gemstones, tanzanite can have inclusions or blemishes, which can affect its overall appearance and value. Look for tanzanite stones with minimal visible inclusions or blemishes, as these can impact the stone's brilliance and transparency.

• The size and carat weight of the tanzanite should also be taken into account. Tanzanite is available in a range of sizes, and the price can increase significantly with larger stones. Consider your personal preference and budget when choosing the size of the tanzanite gemstone.

• Lastly, it is important to consider the cut and shape of the tanzanite. The cut of the stone can greatly impact its overall beauty and brilliance. Look for well-cut tanzanite stones that maximize the gem's color and sparkle.

By considering these factors when purchasing tanzanite gemstones, you can ensure that you are making an informed decision and investing in a high-quality and beautiful gemstone.


The gemstone's name was derived from the country of its origin and was officially introduced to the world in 1968. Due to the limited supply of Tanzanite, it is considered a rare and valuable gemstone. However, the rarity of this gemstone also makes it prone to fraud, making authenticity a major concern when purchasing Tanzanite. It is essential to purchase Tanzanite from a reputable source that can provide authenticity certificates and verifiable documentation. Before purchasing a Tanzanite, it is vital to research its origin and authenticity to avoid being misled and ending up with a fake gemstone.


Tanzanite gemstones can be cut in various ways to enhance their beauty and maximize their sparkle. The most common cuts include cushion, oval, pear, round, princess, and emerald. Each of these cuts has its unique characteristics, and it is essential to understand their features before making a purchase. For example, cushion cuts feature rounded corners and a square or rectangular shape, while emerald cuts are rectangular and have straight edges. Oval cuts are a popular choice for engagement rings due to their elongated shape, while pear cuts have a pointed tip and a rounded bottom. Princess cuts are square or rectangular and have pointed corners, while round cuts have a circular shape and offer maximum brilliance. Choosing the right cut depends on personal preferences and the design of the jewelry piece. Overall, Tanzanite's unique color and exceptional clarity make it a beautiful gemstone in any cut.


Due to the rarity and high value of tanzanite, it is important to ensure that you are purchasing an authentic stone. Check certification from a reputable gemological laboratory, such as the Gemological Institute of America (GIA) or the American Gem Trade Association (AGTA). These certifications assure the authenticity and quality of the stone and also include details such as the carat weight and measurements. It is important to note that certificates can vary in their level of detail, so it is best to choose a lab that provides comprehensive reports. When purchasing tanzanite, always ask for gemstone certification to ensure that you are getting what you are paying for.


Taking care of your tanzanite jewelry is important to ensure that it retains its beauty and value for years to come. Tanzanite is a relatively soft stone and can be easily scratched or chipped, so it should be handled with care. Here are some tips to keep your tanzanite jewelry looking its best:

- Avoid wearing tanzanite jewelry when engaging in activities that may cause it to get scratched or damaged, such as working out or doing household chores.

- Clean your tanzanite jewelry regularly using warm water, mild soap, and a soft-bristled brush.

- Store your tanzanite jewelry in a separate compartment in your jewelry box or a soft pouch to prevent it from getting scratched or damaged.

- Have your tanzanite jewelry professionally cleaned and inspected at least once a year to ensure that the setting is secure and the stone is not damaged.

- Protect your tanzanite jewelry from extreme temperatures and direct sunlight, which can cause the color to fade over time.

By following these simple care and maintenance tips, you can keep your tanzanite jewelry looking beautiful and valuable for years to come.


Tanzanite is a naturally occurring gemstone and is often heat-treated to enhance its color. The treatment process is used to remove any unwanted yellow and brownish tones that the gemstone may have and bring out its beautiful blue and violet hues. However, it is essential to note that not all tanzanite is treated. It is essential to inquire about the treatment of the gemstone before purchasing it to ensure that you are getting what you are paying for.

Tanzanite is also occasionally fracture-filled to improve its clarity and color. The filling material used in this process is usually lead glass, which helps fill any cracks or inclusions within the stone and improve its overall appearance. While fracture-filled tanzanite is more affordable than its untreated counterparts, it is crucial to note that the filling may not be permanent and may wear off over time, thus reducing the value of the gemstone.

It is vital to work with a reputable dealer who will provide accurate information regarding any treatment or enhancement that the gemstone may have undergone. Opting for an untreated, naturally occurring tanzanite will assure you that you are investing in a genuine and valuable gemstone.

Tanzanite is a beautiful and rare gemstone that is cherished by many. Buying tanzanite can be a bit overwhelming, but by considering the factors we've outlined in this guide, you'll be better equipped to make an informed purchase. We hope this guide has helped you make an informed decision about buying tanzanite.

If you're looking to buy tanzanite gemstones, one great place to start is GemsBiz. At GemsBiz all tanzanite gemstones are ethically sourced from Tanzania, and each piece comes with a certificate of authenticity so you can be sure that you're getting what you paid for. With a wide range of sizes and shapes to choose from, you'll find exactly what you're looking for to complete your jewelry collection. Plus, our prices are very reasonable, so you won't break the bank. Browse our collection of tanzanite gemstones, tanzanite beads, & tanzanite cabochons today and start your journey to owning your very own piece of tanzanite jewelry.

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