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How to Choose a Tanzanite Ring

by Madonna

Tanzanite, with its stunning blue-violet hue, has captivated gem enthusiasts since its discovery in 1967. Found only in the Merelani Hills of Tanzania, this rare gemstone has gained popularity for its unique color and brilliance. Choosing a tanzanite ring involves considering several factors to ensure you select a high-quality piece that meets your aesthetic preferences and budget. This guide will walk you through the essential aspects of choosing a tanzanite ring, from understanding the stone’s characteristics to evaluating its quality and selecting the perfect setting.

Understanding Tanzanite

What is Tanzanite?

Tanzanite is a variety of the mineral zoisite and was first discovered by Manuel de Souza, a local prospector, in the Merelani Hills near Mount Kilimanjaro. This gemstone is renowned for its vibrant blue to violet colors, which are caused by the presence of vanadium. Tanzanite’s color can range from deep blue to light violet, and the stone exhibits strong pleochroism, meaning it can show different colors when viewed from different angles.


The Rarity of Tanzanite

Tanzanite’s exclusivity lies in its limited geographical origin. All commercially mined tanzanite comes from a small area in northern Tanzania, making it approximately 1,000 times rarer than diamonds. This scarcity contributes to its allure and value.


The Color Spectrum of Tanzanite

Tanzanite’s color is one of its most appealing features. The gem can range from deep, saturated blues and violets to lighter, more pastel shades. The most prized tanzanites display a rich, velvety blue with violet undertones, reminiscent of the finest sapphires.


The Role of Heat Treatment

Most tanzanites on the market have undergone heat treatment to enhance their color. This process, conducted at temperatures around 600°C, removes brownish hues and brings out the stone’s vibrant blue and violet tones. Heat treatment is a widely accepted practice and does not diminish the stone’s value.

Evaluating Tanzanite Quality

The Four Cs of Tanzanite

When choosing a tanzanite ring, it’s essential to consider the Four Cs: color, clarity, cut, and carat weight. These criteria, originally developed for diamonds, apply to tanzanite and other gemstones.


Color is the most critical factor in determining tanzanite’s value. The gem’s hue, tone, and saturation all play a role in its overall appearance. High-quality tanzanites exhibit a deep, intense blue with violet undertones. Stones with lighter, less saturated colors are generally less valuable.


Clarity refers to the presence of inclusions or blemishes within the gemstone. Tanzanite is typically eye-clean, meaning that inclusions are not visible to the naked eye. However, some stones may have tiny inclusions that can affect their brilliance. When choosing a tanzanite ring, look for a stone with minimal inclusions to ensure maximum sparkle.


The cut of a tanzanite gemstone influences its brilliance and overall appearance. A well-cut tanzanite will reflect light evenly across its surface, enhancing its color and sparkle. Common cuts for tanzanite include oval, cushion, pear, and emerald. When selecting a ring, choose a cut that complements the stone’s natural beauty and your personal style.

Carat Weight

Carat weight measures a gemstone’s size. Tanzanites are available in various sizes, ranging from small accent stones to large statement pieces. While larger tanzanites are more valuable, it’s important to balance size with other quality factors, such as color and clarity.

Additional Factors to Consider


Tanzanite’s pleochroism means it can display different colors when viewed from different angles. This characteristic can add depth and intrigue to the stone. When choosing a tanzanite ring, observe the gem from various angles to appreciate its full range of colors.


Tanzanite has a hardness of 6.5 to 7 on the Mohs scale, making it suitable for occasional wear. However, it is softer than other popular gemstones like sapphire or diamond, so care should be taken to avoid scratches and damage. Consider selecting a protective setting for your tanzanite ring to enhance its longevity.

Choosing the Perfect Tanzanite Ring

Selecting the Right Setting

The setting of your tanzanite ring plays a crucial role in showcasing the gemstone’s beauty and protecting it from damage. Here are some popular setting options:

Prong Setting

A prong setting uses metal claws to hold the tanzanite in place. This classic setting allows maximum light to enter the stone, enhancing its brilliance. However, prongs can leave the gem exposed to potential damage, so it is essential to choose a secure design.

Bezel Setting

A bezel setting encircles the tanzanite with a metal rim, providing excellent protection. This setting is ideal for those who lead an active lifestyle, as it minimizes the risk of damage. Additionally, the sleek, modern look of a bezel setting complements the contemporary appeal of tanzanite.

Halo Setting

A halo setting features a central tanzanite surrounded by smaller accent stones, often diamonds. This design adds extra sparkle and emphasizes the tanzanite’s color. Halo settings are popular for their glamorous appearance and the added protection they offer the central stone.

Choosing the Metal for Your Ring

The metal used in your tanzanite ring setting can influence the overall look and durability of the piece. Common options include:


Platinum is a durable, hypoallergenic metal that offers excellent protection for your tanzanite. Its white color complements the blue-violet hues of tanzanite, creating a timeless and elegant look. However, platinum is also more expensive than other metals.

White Gold

White gold is a popular choice for tanzanite rings due to its similar appearance to platinum but at a lower cost. It provides a modern, sleek look that enhances the gemstone’s color. White gold rings are typically rhodium-plated to maintain their bright white finish.

Yellow Gold

Yellow gold offers a warm, classic look that can create a striking contrast with the cool tones of tanzanite. This metal is less expensive than platinum and provides a traditional, timeless appeal.

Rose Gold

Rose gold has a pinkish hue that adds a romantic and unique touch to tanzanite rings. This metal complements the violet undertones of tanzanite, creating a harmonious and stylish combination.

See Also: Is Tanzanite Good Luck?

Personalizing Your Tanzanite Ring

Incorporating Accent Stones

Adding accent stones to your tanzanite ring can enhance its overall appearance and add extra sparkle. Diamonds are a popular choice for accent stones due to their brilliance and durability. Other options include sapphires, emeralds, and rubies, which can create a colorful and unique design.

Custom Designs

Customizing your tanzanite ring allows you to create a one-of-a-kind piece that reflects your personal style and preferences. Work with a jeweler to design a ring that incorporates your desired setting, metal, and accent stones. This approach ensures you get a ring that is truly unique and meaningful.


Adding an engraving to your tanzanite ring can make it even more special. Consider engraving a meaningful date, initials, or a short message inside the band. This personal touch adds sentimental value and makes your ring a cherished keepsake.


Choosing a tanzanite ring involves careful consideration of the gemstone’s quality, the setting, and personal preferences. By understanding the unique characteristics of tanzanite and evaluating the Four Cs, you can select a ring that showcases this rare and beautiful gemstone to its fullest potential. Whether you prefer a classic solitaire, a glamorous halo, or a modern bezel setting, your tanzanite ring will undoubtedly be a cherished piece that adds a touch of elegance and sophistication to any jewelry collection. With proper care and maintenance, your tanzanite ring will continue to dazzle and delight for years to come.


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