March Birthstone: Aquamarine Meaning, Color & Jewelry Guide

If you're shopping for someone born in March — or shopping for yourself — the birthstone is aquamarine: a pale-to-deep blue gem from the same mineral family as emerald. It's one of the most wearable colored stones in fine jewelry, and also one of the most misunderstood, especially when it comes to what's real, what's treated, and what's simply cheap glass pretending to be aquamarine.

This guide covers what aquamarine gemstones are, what their color and meaning are based on fact versus folklore, how it compares to November birthstone blue topaz, whether it holds up to daily wear, and what to check before you buy.

What Is the Birthstone for March?

Aquamarine is the modern March birthstone. Bloodstone, a dark green stone flecked with red, is the older traditional alternative, but aquamarine is by far the more commonly worn and gifted of the two today. Both sit on the standardized birthstone list adopted by American jewelers in 1912 — the same list used across most of the US, UK, Canada, Australia, and New Zealand, so "March birthstone" means the same thing no matter where your March-born giftee happens to live.

Aquamarine's Second Meaning: The 19th Anniversary Stone

Beyond birth months, aquamarine is also the traditional gift for a 19th wedding anniversary — a detail worth knowing if you're shopping for a milestone rather than a birthday.

Aquamarine Meaning: Fact vs. Folklore

It's worth separating what's documented history from what's belief and legend, since most articles combine the two without saying which is which.

Documented:

• The name comes from the Latin aqua (water) and marina (of the sea) — a literal reference to its color, not a claim about the stone itself.

• Aquamarine is a variety of beryl, the same mineral family as emerald and morganite, colored by trace amounts of iron.

• It's mined primarily in Brazil, with meaningful deposits in Nigeria, Madagascar, Zambia, Pakistan, and Mozambique.

Folklore and tradition (not gemological fact):

• Ancient mariners were said to carry aquamarine as a talisman for safe passage, believing it calmed rough seas.

• In crystal-healing traditions, aquamarine is associated with the throat chakra and linked to calm, clear communication — a belief system, not a scientific property of the stone.

• Various cultures have credited it with easing anxiety or promoting emotional clarity.

If you're buying it as a meaningful gift, the folklore adds to the charm. Just don't confuse it with what a gemologist would tell you about the stone's actual properties.

Aquamarine Birthstone Color Guide

Aquamarine ranges from a very pale, icy blue to a deeper, more saturated sea-blue, sometimes with a subtle green undertone. Color is the single biggest factor in an aquamarine's value:

1. Color intensity increases with size.

Small aquamarines often look nearly colorless, such as an April birthstone diamond, but the blue becomes more visible in larger stones.

2. The most prized aquamarines offer more color.

In this March birthstone, you can see a vivid, pure blue with minimal green—a benchmark gemologists call "Santa Maria" blue, named after the Brazilian mine where the most saturated stones were historically found.

3. Most aquamarine on the market is heat-treated.

Natural and rare aquamarine gemstones are not easily available unless you wish to pay enough for them. So, lab-treated stones shift a naturally greenish-blue stone toward a purer blue. This is a standard, disclosed, and permanent treatment across the trade — not something to be wary of, but worth knowing when a jeweler describes a stone as "treated."

4. Clarity tends to be excellent.

Aquamarine typically grows as large, clean crystals, so eye-clean stones (no visible inclusions like those mentioned in the 4Cs of diamonds) are the norm rather than the exception, even at larger carat weights.

Aquamarine vs. Other Blue Gemstones

Aquamarine is most often confused with blue topaz, a second-to-last-month calendar gemstone, and sometimes with blue sapphire or tanzanite as a December birthstone. Here's how they actually compare:

The one-line answer: aquamarine and blue topaz can look nearly identical at a glance, but blue topaz is almost always a colorless stone that's been irradiated and heat-treated to blue, while aquamarine's blue occurs naturally in the crystal (sometimes enhanced with routine heat treatment, never color-added from scratch). That difference in how the color got there is also why aquamarine generally costs more.

Is Aquamarine Natural, Treated, or Lab-Created?

This is where many shoppers get confused, especially those used to shopping for lab-grown diamonds.

1. Natural aquamarine is mined.

As mentioned earlier, getting a natural aquamarine is not easy because, in most cases on the market today, heat-treated stones exist. This improves color through a standard, permanent, industry-disclosed process.

2. Lab-created aquamarine is created, not mined.

You'll see this phrase used loosely online, but it's worth reading the fine print. Genuine hydrothermally grown synthetic beryl does exist, but it's rare in commercial jewelry. Most low-cost jewelry supply listings sold under labels like "lab-created aquamarine" are synthetic spinel—a completely different mineral grown in a lab specifically to imitate aquamarine's color. It is not aquamarine at all. It's a simulant, like cubic zirconia or moissanite simulates a diamond rather than being a lab-grown diamond.

If a listing doesn't specify whether a stone is natural aquamarine, treated natural aquamarine, or a simulant like synthetic spinel, it's fair to ask before buying. Additionally, August's birthstone is spinel, along with peridot and sardonyx for customized jewelry.

Is Aquamarine Durable Enough for Daily Wear or an Engagement Ring?

Short answer: yes, with the right setting.

Aquamarine rates 7.5 to 8 on the Mohs hardness scale — harder than most everyday materials it might encounter, and notably, it typically has better toughness than emerald despite sharing a similar hardness range. That's because aquamarine usually grows free of the surface-reaching inclusions that make emerald more prone to chipping. In practical terms, a well-cut, eye-clean aquamarine is one of the more forgiving colored gemstones for daily wear.

That said, it's still softer than sapphire (9) or diamond (10), so a few habits go a long way:

• Choose a protective setting — a bezel or well-secured prong setting — for rings worn daily.

• Remove it for heavy manual work, workouts, or activities where impact is likely.

• Avoid ultrasonic cleaners if the stone has any visible inclusions or fractures; a soft brush with warm, soapy water is the safer default for any aquamarine.

• Keep it away from extreme heat and prolonged direct sunlight, which can very gradually affect color over years.

Following these tips will help you keep aquamarine gemstone jewelry looking as good as when you first bought it.

Aquamarine Birthstone Zodiac Sign

Aquamarine is most commonly associated with Pisces (February 19–March 20), whose dates overlap with most of March. It is also sometimes linked to Aquarius, Gemini, and Libra, depending on the tradition referenced. As with the folklore above, this is an astrological association, not a scientific classification. You can purchase a Pisces pendant made with gold, and the blue gemstone Aquamarine looks perfect. 

How to Buy Aquamarine Jewelry: What Actually Matters

When you're comparing pieces, prioritize in this order:

1. Color first. A medium-to-deep, clean blue with minimal gray or excessive green will always outperform a pale, washed-out stone of the same size.

2. Clarity second. Since eye-clean aquamarine is common, don't settle for a stone with visible inclusions unless the price reflects it.

3. Cut third. Oval, emerald, and cushion cuts show aquamarine's color most evenly. Round brilliant cuts maximize sparkle.

4. Setting and metal. White gold and platinum sharpen aquamarine's cool blue tone; yellow and rose gold add warmth and a more vintage feel.

5. Ask what you're buying. Confirm whether the stone is natural (treated or untreated) or a simulant like synthetic spinel — a legitimate seller will tell you plainly.

Consider requesting an authentication report that comes with the gemstone jewelry purchase, offered by GIA, IGI, Gem Research Swisslab, and World Gemological Institute.

Caring for Aquamarine Jewelry to Look Newly Purchased By You Every Time

Here are tips for cleaning and caring for your aquamarine jewelry.

• First, clean the stone or setting with warm water, mild soap, and a soft-bristled brush. Do not press on the setting, as it can injure or damage the jewelry.

• Steam and ultrasonic cleaners are generally fine for eye-clean, untreated aquamarine, but avoid them if the stone has visible inclusions or fracture-filling. Ask for a professional jewelry cleaning service here.

• Store separately from harder gemstones like diamond or sapphire, or even July birthstone ruby, which can scratch it in a jewelry box.

• Have four- or six-prong settings checked roughly once a year to make sure the stone is secure.

In short, if you don't want to compromise the quality, send your jewelry every 6-12 months to an expert cleaning service provider. They know the exact method to prevent damage and keep your jewelry in top condition.

Aquamarine March Birthstone Jewelry Ideas You Can Explore

When purchasing birthstone jewelry, especially in aquamarine for an engagement proposal, wedding band, anniversary, graduation, or any of the famous but personalized moments, here are some jewelry ideas to prefer:

1. Medium-Blue Colored Aquamarine Stone Rings Jewelry

When choosing an aquamarine ring for an engagement or wedding, colors usually range from pale to medium blue. For the setting, choose a bezel-set oval shape in 2 carats or an emerald-cut vintage setting in 14KT gold. Getting a halo setting adds sparkle and extra security around a softer gem. An aquamarine wedding ring is also available with an eternity band and secure settings. 

2. Aquamarine Necklaces Offer a Unique Wearing Experience

A diamond pendant on a gold chain isn't enough for a modern look; a blue aquamarine center-stone necklace is a unique choice. A 14KT yellow gold chain is one of the most requested styles for March birthday gifts—understated enough for daily layering. White gold jewelry with an aquamarine stone is another key choice for a special moment.

3. Aquamarine Earrings Become Daily Jewelry

Emerald cut aquamarine stud earrings are a low-maintenance way to wear the color daily without the durability concerns of a ring. But you can also explore other options, like drop earrings and starfish earrings that look extra luxurious. For a more delicate look, go with the rose gold aquamarine and diamond earrings, as they suit daily wear, even at home, the office, or for any occasion.

4. Anniversary gifts

For a 19th anniversary, an aquamarine piece paired with diamond accents nods to both the traditional stone and a more contemporary sparkle. Aquamarine flower earrings in 18KT rose gold, or a diamond pendant necklace in platinum, look premium with 5 aquamarine blue stones totaling a 10 carat weight. An aquamarine tennis bracelet for a woman is another choice for a pretty look that adds elegance to the wrist and suits both casual and formal appearances.

Get Premium Aquamarine Gemstone Jewelry at Zemerra International

At Zemerra International, we design unique, elegant aquamarine jewelry, from 1-carat rings to 15-carat gold necklaces. For a truly personalized gemstone jewelry experience, we offer customized jewelry options for anyone who wants something unique.

We also make diamond accent jewelry with birthstones, made to your instructions and design. To ensure top-notch, competitive quality, we also provide a jewelry certificate and guide you throughout the making process.

So, why are you waiting? Let Zemerra International craft the next specialized birthstone jewelry to make your special moments truly memorable.

FAQ

1. What is the birthstone for March?

Aquamarine is the modern birthstone for March. Bloodstone is the traditional alternative, though aquamarine is the far more commonly worn choice today.

2. What is the color of the March birthstone, Aquamarine?

The Aquamarine birthstone comes in the pale to medium-to-deep blue range, like seawater, and is usually treated in laboratories. Getting a rare gemstone like this in the same color is complex and makes it expensive.

3. Is aquamarine a precious stone?

No. Aquamarine is a semi-precious stone easily available in the market compared to a diamond, ruby, sapphire, and emerald, the four precious gemstones.

4. Is aquamarine durable enough for an engagement ring?

Yes, for most wearers. It rates 7.5–8 on the Mohs scale and tends to have better toughness than emerald because it's usually free of surface-reaching inclusions. A protective setting is recommended for daily wear.

5. What's the difference between aquamarine and blue topaz?

Aquamarine's blue occurs naturally in the crystal (often enhanced with routine heat treatment). Blue topaz is almost always a colorless stone that's been irradiated and heat-treated to produce its blue color. Aquamarine is generally the more valuable of the two.

6. What zodiac sign is aquamarine associated with?

Most commonly, Pisces, and sometimes Aquarius, Gemini, or Libra, depending on the tradition, is associated with the aquamarine gemstone.

7. What is the birthstone for March 1st to 31st?

Aquamarine is the official birthstone for March 1st to 31st, according to the list, and is used to make jewelry beautiful with its medium- to dark-blue color like seawater. The list also mentions Bloodstone as a traditional alternative gem for March, with a dark green color.