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Color grading of Tanzanite

Basics of Color Grading

Understanding the intricacies of color grading, especially when it comes to the enchanting Tanzanite, is like unraveling the secrets of nature’s vibrant palette. Let’s explore the fundamentals of color grading and how they apply specifically to Tanzanite.

Color grading of Tanzanite

Tanzanite and Basics of Color Grading

01. Hue

Tanzanite, celebrated for its captivating blue-violet hues, begins our journey into the world of color grading. Hue refers to the dominant color of a gemstone, and in the case of Tanzanite, it’s all about that enchanting blue with subtle violet undertones. The most prized Tanzanite displays a pure and vivid blue hue, akin to the depth of a tranquil ocean.

02. Saturation

Saturation measures the intensity or vividness of a gemstone’s color. When it comes to Tanzanite, high saturation is the key to its allure. The most coveted Tanzanite gemstones exhibit a rich, vibrant blue that seems to dance with light. It’s this intense saturation that elevates Tanzanite to a realm of its own, where its colors are nothing short of mesmerizing.

03. Tone

The tone is the depth or darkness of a gemstone’s color. In Tanzanite, the ideal tone strikes a harmonious balance, neither too light nor too dark. A medium to medium-dark tone ensures that the gem’s color remains vivid and enchanting, like a twilight sky.

04. Color Zoning

Experienced traders pay close attention to any color zoning within Tanzanite. Color zoning occurs when different areas of the gemstone exhibit variations in color intensity or hue. A well-graded Tanzanite should have uniform color distribution, without noticeable zoning, allowing its beauty to shine consistently throughout.

05. Color Consistency

Tanzanite’s color consistency is paramount. A top-quality Tanzanite gemstone should maintain its captivating blue-violet hues consistently throughout the stone, with minimal variations or patches of uneven color. This uniformity enhances its overall appeal.

06. Color Modifiers

While Tanzanite is primarily known for its blue-violet hues, subtle color modifiers can add character and uniqueness to each gem. Some Tanzanites may display slight shifts towards green or reddish-purple tones, which can be appreciated for their individuality.

As you explore the world of Tanzanite, understanding these basics of color grading will deepen your appreciation for the gem’s exquisite beauty. Tanzanite’s remarkable color, ranging from serene blues to enchanting violets, is a testament to nature’s artistry. Whether you’re seeking the perfect Tanzanite for a jewelry piece or simply admiring its hues, delving into the world of color grading opens the door to a world of endless fascination and wonder.


6.65 Ct. Tanzania No Enhancement Blue Tanzanite

6.65 Ct. Tanzania No Enhancement Blue Tanzanite

6.65 Ct. Tanzania No Enhancement Blue Tanzanite

The Gemstone Color Spectrum

The Gemstone Color Spectrum is like nature’s own masterpiece, a breathtaking canvas of colors that spans the entire spectrum of human imagination. When it comes to Tanzanite and its color grading chart, we find ourselves immersed in a world of mesmerizing hues and shades.

  • Reds and Pinks: At one end of this radiant spectrum, we find gemstones cloaked in the passionate embrace of reds and pinks. Rubies, pink sapphires, and tourmalines bloom like fiery blossoms, their colors ranging from the softest blush to the deepest crimson. These gemstones are the epitome of love and desire, evoking emotions as vivid as their hues.
  • Oranges and Yellows: Moving along the spectrum, we encounter gemstones that capture the warmth of a sun-kissed day. Yellow sapphires and citrines glow with golden radiance, while fire opals blaze with fiery oranges. These gems bring the energy of sunshine and joy wherever they go, reflecting the colors of a cheerful, golden world.
  • Greens: Green gemstones, including emeralds and peridots, transport us to lush, verdant landscapes. From the deep green of emerald forests to the fresh, spring-like hues of peridots, these gems are a celebration of nature’s renewal and vitality.
  • Blues: And then, there are the blues, where Tanzanite reigns as a star. The blues range from the tranquil shades of aquamarines to the deep, velvety blues of sapphires. Among them, Tanzanite’s unique blue-violet spectrum stands out, offering a dreamlike fusion of colors that mirror the depths of the ocean and the hues of twilight skies.
  • Violets and Purples: Beyond blue, we enter the realm of violets and purples. Amethysts and tanzanites are enchanting with their regal and soothing colors, ranging from delicate lilacs to rich, royal purples. These gems embody the elegance and mystery of twilight.
  • Multicolored Marvels: Some gemstones defy categorization, displaying a mesmerizing play of multiple colors. Opals, with their ever-changing iridescence, and watermelon tourmalines, featuring a gradient of pinks and greens, are like miniature rainbows captured within the Earth.

The Gemstone Color Spectrum is a testament to nature’s boundless creativity. It reminds us that within the Earth’s depths, a breathtaking palette of colors waits to be unearthed and cherished. Whether you’re drawn to the fiery passion of reds, the serene beauty of blues, or the enchanting mystique of violets, the Gemstone Color Spectrum invites you to explore the diverse world of gemstone colors and find your own unique gemstone journey.

The Four Cs of Gemstone Quality

Let’s dive into the captivating world of Tanzanite and explore how the Four Cs of Gemstone Quality, with a special focus on ‘Color,’ come together to reveal the extraordinary allure of this remarkable gem.

01. Color (with a Focus on Tanzanite’s Unique Hue): When it comes to Tanzanite, color is the crown jewel of its charm. Tanzanite’s color is an entrancing fusion of blue and violet, a truly one-of-a-kind spectacle in the gemstone world. Here’s how color plays a starring role.

  • Hue: Tanzanite’s hue is a captivating blend of blue and violet, often called ‘bluish-violet’ or ‘violetish-blue.’ This unique hue sets Tanzanite apart and has earned it a special place in the hearts of gemstone enthusiasts.
  • Saturation: Tanzanite’s color is celebrated for its high saturation, giving it a vibrant and intense appearance. The gem’s color dances with a vivid energy that draws the eye and captures the imagination.
  • Tone: Tanzanite’s tone strikes a harmonious balance, typically ranging from medium to medium-dark. This tone ensures that the gem’s color remains rich and inviting, akin to the deep blue-violet hues of twilight.

02. Clarity (Unveiling Tanzanite’s Transparency): While Tanzanite may contain characteristic inclusions, they often have minimal impact on the gem’s transparency. These inclusions are like nature’s fingerprints, adding character and authenticity to each Tanzanite.

03. Cut (Maximizing Tanzanite’s Brilliance): The cut of Tanzanite is a testament to the skill of artisans who bring out its inner beauty. A well-cut Tanzanite gemstone maximizes the play of light within, enhancing its brilliance and showcasing the vivid blue-violet hues to their full potential.

04. Carat Weight (Tanzanite’s Size and Rarity): Tanzanite’s carat weight measures its size, with larger stones being rarer and more valuable. However, it’s important to note that the interplay of color, clarity, and cut remains paramount in determining overall quality, ensuring that even smaller Tanzanites can be prized for their exceptional beauty.

Within the Four Cs, ‘Color’ is where Tanzanite truly shines. It’s the characteristic that makes Tanzanite unmistakable and highly coveted. The play of blue and violet in Tanzanite is like capturing the essence of a tranquil twilight, frozen in the heart of a gemstone.


2.50 Ct. Tanzania Heat Treated Violet Tanzanite

2.50 Ct. Tanzania Heat Treated Violet Tanzanite

2.50 Ct. Tanzania Heat Treated Violet Tanzanite

The journey through Tanzanite’s ‘Color’ is a visual and emotional experience. It’s where we discover the gem’s soul, its unique story, and its ability to evoke a sense of wonder and beauty. Whether you’re drawn to the regal blue or the enchanting violet, Tanzanite’s ‘Color’ is an invitation to explore the diverse and captivating world of this exceptional gem.

Visit here for more details about Gemological Tools for Color Grading!

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