Colored Gemstones Guide: Ruby, Sapphire, Emerald & More

Diamonds may be forever, but colored gemstones are having a spectacular moment right now — and honestly, it is long overdue. If your jewelry box is filled entirely with white sparkle, you are missing out on one of the most exciting ways to express your personal style. Colored gemstones jewelry offers something diamonds simply cannot: a world of vivid, saturated color that can reflect your mood, your personality, and your individuality in ways that a colorless stone never will.

From the regal red of a ruby to the lush green of an emerald to the electric blue of a sapphire, colored gemstones carry stories that date back thousands of years. Royals collected them. Ancient healers prescribed them. And today’s most fashion-forward jewelry lovers are rediscovering them with fresh eyes and modern designs. In this guide, I will take you through everything you need to know about colored gemstone jewelry — the precious, the semi-precious, and the absolutely stunning.

Why Colored Gemstones Are Having a Moment

Several trends are converging to fuel the current obsession with colored gemstones. First, there is a widespread desire for individuality in fashion. As more people move away from cookie-cutter trends and toward personal expression, colored gemstones offer an immediate way to stand out. No two rubies look exactly alike. No two opals play with light in quite the same way. When you wear colored gemstone jewelry, you are wearing something truly unique.

Celebrity influence has also played a role. High-profile engagement rings featuring sapphires, emeralds, and rubies have inspired a wave of interest in non-diamond center stones. When the world saw that a sapphire engagement ring could be just as breathtaking — and in many ways more personal — as a diamond solitaire, the floodgates opened.

Finally, colored gemstones often offer remarkable value compared to diamonds of equivalent size. You can get a stunning, high-quality sapphire or emerald for a fraction of what a comparable diamond would cost, which means you can go bigger, bolder, and more creative with your jewelry choices.

Explore the full range of colored gemstone jewelry at USA Jewels and see for yourself why so many people are falling in love with color.

The Precious Trio: Ruby, Sapphire, and Emerald

When gemologists talk about precious gemstones, they are referring to four stones: diamond, ruby, sapphire, and emerald. Setting diamonds aside — they get plenty of attention — let’s focus on the magnificent trio of colored precious gems.

Ruby: The ruby is the undisputed king of red gemstones. Its color ranges from pinkish-red to a deep, pigeon-blood red that is considered the most valuable shade. Rubies are a variety of the mineral corundum, making them exceptionally hard at 9 on the Mohs scale — second only to diamonds. Throughout history, rubies have symbolized passion, protection, and prosperity. In ancient Burma, warriors embedded rubies into their skin before battle, believing the stones made them invincible. Today, ruby jewelry remains one of the most coveted categories in fine jewelry. A ruby ring in warm yellow gold is a combination that radiates timeless luxury.

Sapphire: Most people think of blue when they hear “sapphire,” but this incredibly versatile gemstone actually comes in every color of the rainbow except red. Pink sapphires, yellow sapphires, and padparadscha sapphires (a rare pinkish-orange variety) are all highly prized. Blue sapphire jewelry, however, remains the most popular choice — and it is easy to see why. That deep, velvety blue evokes loyalty, wisdom, and nobility. Like rubies, sapphires rate a 9 on the Mohs scale, making them ideal for rings and other pieces that see daily wear. Sapphire jewelry is a brilliant choice for anyone who wants a pop of color with the durability to match.

Emerald: Emeralds have captivated humanity for at least 4,000 years. Cleopatra’s legendary emerald collection is the stuff of jewelry legend, and the stone’s rich green color has come to symbolize rebirth, love, and wisdom. Emeralds rate 7.5 to 8 on the Mohs scale, which makes them slightly softer than rubies and sapphires. Most emeralds also contain natural inclusions — called “jardin” (French for garden) — that are considered part of the stone’s character rather than flaws. Emerald jewelry looks spectacular in both gold and platinum settings, and a well-chosen emerald can rival any diamond for sheer visual impact.

Popular Semi-Precious Gemstones

The term “semi-precious” is actually a bit misleading — these gemstones are every bit as beautiful and meaningful as their precious counterparts, and in some cases, rare varieties can be even more valuable. Here are some of the most popular semi-precious gemstones for jewelry.

Amethyst: This purple variety of quartz has been treasured since ancient times. Amethyst jewelry ranges from delicate lavender to deep, saturated purple, and it is one of the most affordable gemstones on the market. Do not let the price fool you — a beautifully cut amethyst is absolutely gorgeous and makes a striking addition to any collection.

Topaz: Available in an array of colors including blue, pink, and the coveted imperial orange-pink, topaz jewelry is versatile and eye-catching. Blue topaz, in particular, is enormously popular for its vibrant color and excellent clarity. It comes in three shade variations — Sky Blue, Swiss Blue, and London Blue — each progressively deeper and more dramatic.

Garnet: While most people picture a deep red stone, garnet jewelry actually spans a remarkable color range. Tsavorite garnet offers a brilliant green that rivals emerald, while mandarin garnet dazzles with vivid orange. Demantoid garnet is one of the rarest and most brilliant gemstones in the world. Whatever color you choose, garnets offer excellent durability and remarkable beauty for the price.

Opal: Opal jewelry is unlike anything else in the gemstone world. That magical play of color — flashes of red, blue, green, and orange dancing across the stone’s surface — makes every opal a miniature work of art. Australian opals are considered the finest, with black opals from Lightning Ridge commanding the highest prices. Opal jewelry requires a bit more care than harder stones, but the visual payoff is extraordinary.

To learn more about individual gemstones and their properties, visit our gemstone education center.

Understanding Gemstone Durability

One of the most important factors to consider when shopping for colored gemstones jewelry is durability. Not all gemstones are created equal when it comes to hardness, toughness, and stability — and understanding these differences will help you choose stones that are appropriate for how you plan to wear them.

The Mohs scale of mineral hardness ranks gemstones from 1 (softest) to 10 (hardest, which is diamond). Here is a quick reference for popular colored gemstones:

Ruby and Sapphire (Corundum): 9 — Excellent for all jewelry, including daily-wear rings
Topaz: 8 — Very durable, suitable for all types of jewelry
Emerald: 7.5-8 — Good hardness but natural inclusions can affect toughness; protective settings recommended
Garnet: 6.5-7.5 — Good for most jewelry; avoid hard impacts
Amethyst and Citrine (Quartz): 7 — Suitable for all jewelry types with reasonable care
Opal: 5.5-6.5 — Best for pendants, earrings, and occasional-wear rings; avoid water and extreme temperatures
Pearl: 2.5-4.5 — Requires gentle handling; best for earrings, pendants, and bracelets

As a general rule, gemstones rating 7 or higher on the Mohs scale are suitable for rings that you wear every day. Softer stones are better reserved for earrings, pendants, and brooches — pieces that are less exposed to bumps and abrasion. That said, the right setting design can protect a softer stone significantly. Bezel settings, halo settings, and recessed channel settings all offer added protection for more delicate gems.

Gemstone Settings and Styles

The right setting can make or break a piece of colored gemstone jewelry. Here are the most popular setting styles and how they work with colored stones.

Prong settings are the most common and allow maximum light to enter the stone, showcasing its color and brilliance. Four-prong and six-prong settings work beautifully with transparent gemstones like sapphires, rubies, and topaz. The trade-off is that prongs leave the edges of the stone exposed, so this setting is best for harder gemstones.

Bezel settings surround the stone with a rim of metal, offering excellent protection for softer or more included gems like emeralds and opals. A bezel setting also creates a sleek, modern look that many people prefer. If you want your colored gemstone ring to be worry-free for daily wear, a bezel is a fantastic choice.

Halo settings surround a center gemstone with a ring of smaller diamonds or gemstones, amplifying the color and apparent size of the center stone. A halo setting around a deep blue sapphire or a vivid ruby is absolutely breathtaking. It also adds extra protection to the center stone’s edges.

Two-stone settings pair two gemstones side by side, creating a beautiful conversation between colors. A two-stone piece combining a sapphire and a diamond, or an emerald and a ruby, tells a richer story than a single stone alone.

Colored Gemstone Engagement Rings

One of the most exciting trends in jewelry right now is the rise of the gemstone engagement ring. More and more couples are choosing colored center stones for their engagement rings — and the results are absolutely stunning.

Sapphires are the most popular choice for colored gemstone engagement rings, and for good reason. Their 9-on-the-Mohs-scale hardness makes them durable enough for lifetime daily wear, and their rich blue color symbolizes loyalty and fidelity — perfect themes for a ring that represents your commitment to each other.

Rubies are another bold choice for engagement rings. A ruby center stone surrounded by a diamond halo is a show-stopping combination that tells the world your love is passionate and fearless. Emerald engagement rings, while requiring a bit more care, are beloved by those who appreciate vintage glamour and distinctive style.

If you are considering a gemstone engagement ring, keep durability in mind. Stick with stones rated 7 or above on the Mohs scale for daily-wear rings. And make sure to choose a protective setting — a bezel or halo — to give your gemstone the best chance of lasting a lifetime.

For a fascinating comparison of natural and lab-created options, read our guide on lab-created vs. natural diamonds — many of the same principles apply to colored gemstones as well.

Caring for Your Gemstones

Taking proper care of your colored gemstones will keep them looking vibrant and beautiful for generations. Here are my essential gemstone care tips.

Clean gently. Most colored gemstones can be safely cleaned with warm water, a drop of mild dish soap, and a soft brush. Avoid ultrasonic and steam cleaners for emeralds, opals, pearls, and any treated gemstones — these methods can cause damage to more delicate stones.

Store separately. Harder gemstones can scratch softer ones, so always store your gemstone jewelry in separate compartments or soft pouches. Never toss all your jewelry together in a single box or drawer.

Remove before activities. Take off your gemstone rings before gardening, exercising, cleaning the house, or any activity that could expose them to chemicals, impacts, or abrasion. This single habit will dramatically extend the life of your jewelry.

Have settings checked regularly. Prongs and bezels can loosen over time, especially on rings. Have a jeweler check your settings once a year to make sure your gemstones are secure.

Know your stone. Different gemstones have different vulnerabilities. Emeralds are often oiled to improve clarity, so they should never be exposed to harsh chemicals. Opals contain water and can crack in very dry conditions. Pearls are sensitive to acids, including perfume and hairspray. Knowing your specific gemstone’s needs will help you care for it properly.

The key to choosing the right metal for your colored gemstone piece is understanding how metal color affects the stone’s appearance. Visit our guide on yellow gold vs. white gold vs. rose gold to learn how each metal tone complements different gemstone colors.

Shop at USA Jewels

At USA Jewels, we are passionate about helping you discover the incredible world of colored gemstones. Our collection features rubies, sapphires, emeralds, and a wide range of semi-precious gemstones set in expert-crafted gold and platinum designs. Every purchase comes with free shipping and a 30-day return policy, so you can shop with complete confidence. Our lifetime upgrade program means your jewelry investment grows with you, and our Design Your Own tools empower you to create a colored gemstone piece that is perfectly, uniquely yours.

Colored Gemstones: Beyond Diamonds for Stunning Jewelry