Sapphires have long been associated with royalty, elegance, and timeless beauty. But while their rich blue coloring is instantly recognizable, these precious gemstones have much more to offer. From icy pastel blues to vibrant pinks, greens, and yellows, sapphires come in a remarkable variety of colors.

Whether you’re searching for a September birthstone gift, a sapphire ring, or a unique gemstone for a custom jewelry design, understanding the differences between sapphires can help you make a more informed investment.

What Is a Sapphire?

Sapphire is a precious gemstone belonging to the corundum mineral family, composed primarily of aluminum oxide. Natural sapphires form under intense heat and pressure within the Earth, with trace elements such as iron, titanium, and chromium influencing their color. While red corundum is known as ruby, other colors are generally classified as sapphire.

Sapphires rank 9 out of 10 on the Mohs hardness scale, making them one of the hardest natural gemstones. Their durability makes them particularly well-suited for jewelry worn frequently, including rings, necklaces, bracelets, and earrings.

Sapphire is also one of the four gemstones traditionally classified as precious stones, alongside diamonds, rubies, and emeralds. 

Sapphire: September’s Birthstone

Sapphire is the traditional and modern birthstone for September. Although blue is the color most commonly associated with September’s birthstone, sapphires occur in nearly every color of the rainbow.

Their versatility makes them a meaningful choice for birthday gifts, anniversary jewelry, and personalized designs.

What Do Sapphires Symbolize?

Throughout history, sapphires have represented wisdom, loyalty, sincerity, and nobility. Their association with royalty dates back centuries, when monarchs and religious leaders wore sapphires as symbols of status, protection, and spiritual insight.

Today, sapphire jewelry continues to carry meaningful symbolism:

• Loyalty and faithfulness: A popular meaning behind sapphire engagement rings and anniversary gifts.
• Wisdom and truth: Historically associated with clarity of thought, honesty, and good judgment.
• Protection: Ancient cultures believed sapphires could protect their wearers from harm.
• Royalty: Their rich coloring and historical significance have made sapphires a staple of royal jewelry collections.

Types of Sapphires: Understanding Colors and Varieties

While blue sapphires are the most recognizable, sapphires come in an impressive range of colors, tones, and optical varieties. Understanding these differences is one of the most important steps when selecting a gemstone.

Blue Sapphires: From Ice Blue to Midnight Blue

Blue sapphires range from pale, almost translucent-looking shades to rich, velvety blues. Their appearance depends on three main color characteristics: hue, tone, and saturation.

• Hue: The dominant color of the gemstone, including any secondary green or violet undertones.
• Tone: How light or dark the color appears.
• Saturation: The intensity or purity of the color, ranging from muted or grayish to vivid.

Jewelers may use descriptive names to communicate a sapphire’s appearance. Although these names aren’t universally standardized, they can help buyers identify the shades they prefer.

Ice Blue Sapphire

Ice blue sapphires have a very light, cool blue appearance, sometimes with subtle gray or silvery undertones. Their delicate coloring creates an understated, modern aesthetic, particularly in white gold or platinum settings.

Pastel Blue Sapphire

Pastel blue sapphires feature soft, light blue coloring with a gentle, often less saturated appearance. Some have a powdery or slightly grayish quality, making them popular for delicate and romantic jewelry designs.

Blue Jean Sapphire

The term blue jean sapphire is sometimes used in the gemstone trade to describe a denim-like blue, often with a muted or slightly grayish tone. These stones offer a more relaxed alternative to vivid royal blue sapphires.

Royal Blue Sapphire

Royal blue sapphires are known for their rich, vivid blue coloring, typically with medium to medium-dark tone and strong saturation. The term is widely used in the gemstone trade, although the exact criteria can vary between sellers and laboratories.

Midnight Blue Sapphire

Midnight blue sapphires feature very dark blue coloring, sometimes appearing nearly black in low lighting. Their dramatic appearance can be striking, although stones that are excessively dark may show less brilliance and visible color.

When comparing blue sapphires, consider how the stone looks in different lighting conditions. A sapphire that appears vibrant under bright showroom lights may look considerably darker in everyday environments.

Fancy Sapphires: Pink, Yellow, Green, and More

Sapphires that occur in colors other than blue are generally known as fancy sapphires. These gemstones offer opportunities for distinctive jewelry designs.

• Pink sapphires: Range from pale blush to vibrant pink and can create a romantic, feminine look.
• Yellow sapphires: Feature shades from pale lemon to rich golden yellow.
• Green sapphires: Can range from light mint to deep forest green, often with blue or yellow undertones.
• Purple sapphires: Include soft lavender, violet, and deep purple varieties.
• Peach and orange sapphires: Offer warm, delicate coloring, including some highly sought-after pink-orange combinations.
• White sapphires: Colorless varieties that offer a different visual alternative to diamonds.

One particularly rare and desirable variety is the padparadscha sapphire, prized for its distinctive blend of pink and orange hues.

Multicolored and Parti Sapphires

Not every sapphire displays a single, uniform color. Some contain distinct color zones that create a multicolored appearance within one gemstone.

These are often referred to as parti sapphires, particularly when two or more colors are visible face-up in the finished stone.

For example, a sapphire might feature a combination of blue, green, and yellow, creating a distinctive appearance that changes depending on the angle and lighting.

Multicolored sapphires are particularly appealing for custom jewelry because their natural color combinations can make each design feel one of a kind.

Star Sapphires

Star sapphires display a unique optical effect known as asterism, which creates a star-shaped reflection of light across the gemstone’s surface. This effect is typically caused by tiny, oriented needle-like inclusions that reflect light in a distinctive pattern.

Most star sapphires feature a six-rayed star, although four- and 12-rayed examples also exist.

Unlike traditional faceted sapphires, star sapphires are usually cut into smooth, rounded cabochons to showcase the effect. Their unusual appearance makes them especially appealing for statement rings and vintage-inspired jewelry.

How to Evaluate Sapphire Quality Before Buying

Unlike diamonds, sapphires don’t have one universally accepted grading scale. However, several characteristics influence their quality, appearance, and value.

Sapphire Color

Color is often the most important factor in determining a sapphire’s value.

For blue sapphires, rich, vibrant coloring with strong saturation is generally desirable. However, personal preference matters. Some buyers prefer a soft pastel blue sapphire over a traditional royal blue stone.

When evaluating color, pay attention to uneven color distribution, excessive darkness, and grayish or brownish undertones.

Sapphire Clarity

Natural sapphires commonly contain inclusions, or small internal characteristics formed during the gemstone’s development.

While some inclusions are expected, those that significantly affect transparency, beauty, or structural integrity may reduce a stone’s value.

A sapphire doesn’t necessarily need to be completely free of visible inclusions to be considered high quality.

Sapphire Cuts

A well-cut sapphire should enhance its natural color and allow light to reflect attractively throughout the stone. Unlike diamonds, which are often cut to standardized proportions, sapphires may be cut to maximize their color and preserve valuable rough material.

Poor cutting can create uneven coloring, overly dark areas, or a visible window through the center of the stone.

Sapphire Carat Weight

Larger sapphires are generally rarer, especially when they combine desirable color, clarity, and cut. However, carat weight alone doesn’t determine value. A smaller sapphire with exceptional color and cutting may be worth more than a larger stone with less desirable characteristics.

Why Are Sapphire Engagement Rings Popular?

Diamonds remain a classic choice for engagement rings, but sapphires offer an opportunity to incorporate color, symbolism, and individuality into a meaningful piece of jewelry.

One of the most famous examples is the blue sapphire engagement ring originally worn by Princess Diana and later given to Catherine, Princess of Wales. Its oval sapphire surrounded by diamonds remains an iconic jewelry design.

Sapphires also symbolize loyalty and faithfulness, making them a natural choice for engagement and anniversary jewelry. Beyond their symbolism, their durability is a major advantage. Ranking 9 on the Mohs hardness scale, sapphires are well suited to everyday wear when properly set and cared for.

White sapphires are another option for couples who prefer the classic look of a diamond. These colorless gemstones can mimic the appearance of diamonds at a more affordable price point. While they don’t have the same brilliance or sparkle as diamonds, white sapphires offer a durable, elegant alternative for those looking to maximize their budget without sacrificing the appearance of a traditional engagement ring.

Sapphire Jewelry Inspiration

Sapphires aren’t limited to engagement rings. Their variety of colors, cuts, and sizes makes them a versatile choice for nearly every type of fine jewelry. View a sample of our sapphire rings below.

Create Custom Sapphire Jewelry at Christopher Duquet

Choosing a sapphire is a personal experience. From selecting the perfect color and cut to designing a setting that complements the gemstone, every detail contributes to the finished piece.

At Christopher Duquet Fine Jewelry, we specialize in creating custom jewelry that reflects each client’s individual style. Whether you’re drawn to a classic royal blue sapphire, an unusual Montana sapphire, or a colorful combination of gemstones, our team can help you explore the possibilities and select the perfect gemstone.

Our custom design process allows you to create a meaningful piece that celebrates the beauty and individuality of your chosen gemstone.

Explore our custom jewelry services and discover how we can bring your sapphire jewelry vision to life.

Frequently Asked Questions About Buying Sapphires

Are all sapphires blue?

No. Although blue is the most familiar sapphire color, sapphires occur in nearly every color, including pink, yellow, green, purple, orange, and white. Non-blue varieties are generally referred to as fancy sapphires. Red corundum, however, is classified as ruby rather than sapphire.

What is a star sapphire?

A star sapphire is a gemstone that displays a star-shaped optical effect called asterism. The effect is typically caused by light reflecting off tiny, oriented inclusions within the stone. Most star sapphires feature six rays and are cut into smooth cabochon shapes to display the star.

Are there sapphires in Montana?

Yes. Montana is one of the most notable sources of natural sapphires in the United States. Montana sapphires are particularly admired for their blue, green, and teal coloring, although other colors also occur. Their distinctive appearance makes them popular for custom jewelry and engagement rings.

Are there lab-grown sapphires?

Yes. Lab-grown sapphires are real sapphires created in controlled laboratory environments rather than forming naturally within the Earth. They have essentially the same chemical composition, crystal structure, and physical properties as natural sapphires, but are generally more affordable.

How rare are sapphires?

Sapphires are found in several regions around the world, so not all sapphires are exceptionally rare. However, large, natural sapphires with outstanding color, clarity, and minimal treatment can be extremely rare and valuable. Certain varieties, including fine padparadscha sapphires, are especially prized.

What is the price of a sapphire per carat?

Sapphire prices vary considerably depending on color, clarity, cut, carat weight, origin, and treatment history. Commercial-quality natural sapphires may cost tens to hundreds of dollars per carat, while fine-quality stones can cost thousands or even tens of thousands of dollars per carat.

Exceptional stones may command substantially higher prices. Rather than relying on a single average, it’s best to evaluate each sapphire individually based on its characteristics and documentation.

Are sapphires rare?

While sapphires themselves are not exceedingly rare, high-quality natural sapphires can be difficult to find. Stones with vivid color, excellent transparency, desirable proportions, and no evidence of heat treatment are generally less common and can command premium prices.