Free Marble Appraisals — Honest, Experienced, and No Strings Attached

If you’ve inherited a collection, found a box in the attic, or just have a handful of old marbles you’d like identified, I’ll gladly take a look. I’ve been collecting and studying marbles since the 1970s, and I’ve handled everything from hand-gathered German swirls to rare Akro Agate corkscrews and Peltier box sets. My goal is to give you a clear, current idea of what you own and if you decide to sell, I may be interested in buying directly.

How to Get Started

Appraisals are completely free.

Use our handy Marble Appraisal Form or email me clear photos of your marbles so I can provide an accurate evaluation. A few quick notes will make things easier for both of us:

• Take photos in natural light if possible, avoiding harsh glare or deep shadows.
• If you have just a few marbles, individual close-ups are great — but group photos work even better.
• For larger collections, sort them into groups of 30–50 marbles per photo.
• Always send full-size images. I’ll ask for additional angles if needed.

What You’ll Receive

Once I’ve reviewed your images, I’ll reply with an honest overview of what stands out. If I see marbles of potential value, I’ll highlight them directly on your photos.

Over the years, I’ve purchased individual marbles and complete sets worth hundreds or even thousands of dollars. If your collection includes pieces like early machine-made examples, sulphides, or boxed Akro Agate sets, you could have something truly special.

A Note on Market Values

Marble collecting has changed a lot over the years. Prices in books or guides often reflect a market from decades ago. Today’s values depend heavily on condition, color, rarity, and demand and online sales have made price swings common.

When I give you an estimate, it’s not based on outdated price lists. It’s based on real-world sales and decades of hands-on experience.

Before you submit your marbles for appraisal, it helps to see what sets valuable examples apart from the common ones. Below are a few authentic vintage marbles, including pieces from Akro Agate Co., Peltier Glass Co., and Christensen Agate Company, along with an idea of their potential market value.

Each of these marbles is considered collectible for different reasons such as color, pattern, rarity, and condition. Prices can vary widely, but these examples show what serious collectors look for when evaluating value.

Peltier Glass Company
National Line Rainbo “Rebel” Mint
Estimate: $50 – $150

Akro Agate Company
“Sparkler” Mint
Estimate: $25 – $85

Peltier Glass Company
National Line Rainbo “Superman” Mint
Estimate: $150 – $350

Peltier Glass Company
National Line Rainbo “Flamin Dragon” Mint
Estimate: $25 – $50

Christensen Agate Company (CAC)
“Striped Opaque” Mint
Estimate: $50 – $150

A Few Time-Saving Tips

Before sending photos, you can skip over most of the marbles that have little or no collector interest. These typically include:

• Plain, solid-color game marbles.
• Transparent clear glass marbles (of any color).
• Modern “cat’s-eye” types with ribbon centers.

Those are fun to keep, but they don’t hold resale value. Focusing on the more unique examples saves time and helps me get back to you faster.

Response Time

I reply to appraisal requests within 24-48 hours, typically much sooner, though it can take longer when submissions are heavy. This is my passion, so I personally review every photo. Your patience is appreciated! I’ll always get back to you as soon as I can.

Ready to Begin?

Use our Marble Appraisal Form to get started.

Include your name, location, and any background you know about the collection (for example, “found in my grandfather’s attic,” or “came from an old toy box”).

Even if your marbles turn out to be common, you’ll learn something about them and if you happen to have a hidden gem, I’ll be the first to recognize it.

There’s no cost, no pressure, and no obligation. Just an honest opinion from someone passionate about marble collecting.