When it comes to jewelry, beauty is often in the eye of the beholder—but value is a whole different story. Whether you’re looking to invest in fine jewelry, pass heirlooms to future generations, or sell a few pieces you no longer wear, understanding which gemstones tend to hold their value can help you make smarter choices.
At Sell My Jewelry, we help people across the country get fair offers for their precious items. One of the most common questions we hear is, “Will this gemstone still be worth something years from now?” Let’s take a look at which gems tend to stand the test of time when it comes to value.
Diamonds: A Classic for a Reason
Diamonds remain the most popular and widely traded gemstones in the world. Thanks to their durability (they’re the hardest substance on Earth) and strong demand in both engagement rings and investment pieces, diamonds often retain good resale value—especially if they are high-quality.
When determining a diamond’s long-term value, the 4 Cs—carat, cut, clarity, and color—play a big role. Natural diamonds typically command higher prices than lab-grown ones on the resale market. If you have a GIA-certified diamond, that documentation can also make your piece more appealing to buyers.
Rubies: The Rarest of the Big Three
Rubies are considered one of the “big three” precious stones (alongside sapphires and emeralds) and are known for their rich, deep red color. High-quality rubies, especially those without treatment and from well-known locations like Burma (now Myanmar), can command high prices and are becoming increasingly rare.
Their scarcity, combined with strong demand, helps rubies maintain and sometimes even increase in value over time. Color and clarity matter most here—deep, vivid red rubies with minimal inclusions are typically the most valuable.
Sapphires
Sapphires are another gemstone that holds long-term value, especially blue sapphires from regions like Kashmir, Sri Lanka, and Madagascar. However, sapphires actually come in many colors, including pink, yellow, and green. Some of these fancy sapphires are gaining popularity, which can add to their appeal on the secondary market.
As with rubies, untreated sapphires with strong color and clarity are more desirable. A sapphire with a certificate from a trusted gemological lab can make a big difference when selling.
Emeralds
Emeralds are beloved for their vivid green hue and classic elegance. While they’re often more included (meaning they have more visible internal characteristics) than diamonds or sapphires, high-quality emeralds from Colombia, Zambia, or Brazil can be quite valuable.
Because they’re softer than other precious stones, emeralds do require more care. But a well-kept emerald with good color saturation and minimal enhancement still performs well in terms of resale.
Alexandrite
Alexandrite is a color-changing gemstone that shifts from green in daylight to red or purplish-red in incandescent light. This rare trait, along with limited global supply, makes alexandrite one of the most valuable gems on the market.
Natural alexandrites (especially those from Russia or Brazil) are quite rare, and even small stones can carry a hefty price tag. Their scarcity makes them appealing to collectors, which often keeps their value strong.
Thinking About Selling Your Gemstone Jewelry?
If you have jewelry with any of these gemstones and you’re curious about its value, we can certainly help. We make the process simple, safe, and transparent. Whether you’re selling a family heirloom or a piece you no longer wear, we’ll provide a no-pressure evaluation and a competitive offer based on current market demand.
To get started, request your free online jewelry appraisal kit. We’ll guide you through every step and help you make a confident, informed decision.
Sell My Jewelry | Sell Jewelry Online with Confidence
While market trends can shift, gemstones like diamonds, rubies, sapphires, emeralds, and alexandrite have proven to be reliable choices when it comes to long-term value. Whether you’re buying, collecting, or preparing to sell, understanding what holds value can make all the difference.