Why This Even Matters
If you've shopped for glass beads online, you've probably seen the same bead style priced anywhere from four dollars to forty. That's not always a scam. Sometimes it's the difference between a bead pressed in a mold in a factory and one that spent time on the end of a mandrel, in a flame, shaped by a person watching the glass the whole time. Both can look pretty in a photo. They are not the same object, and they don't wear the same way over ten years of being knocked around in a jewelry box.
I work in COE 104 soft glass at the torch, so I'm going to walk you through what I actually look for when I'm evaluating someone else's beads, whether at a bead show or scrolling Etsy at midnight. None of this requires being a glass artist yourself. It just requires knowing where to look.
What "Lampwork" Actually Means
Lampwork (also called flamework) means the glass was melted and shaped using a torch, usually while the glassmaker holds a rod of colored glass in one hand and rotates a stainless steel mandrel in the other. The glass wraps the mandrel, gets shaped with tools, decorated with stringers or frit, then goes into a kiln to anneal, that's a slow controlled cool down, often over several hours, that relieves internal stress so the bead doesn't crack a year later sitting in a drawer.
Machine-pressed or molded glass beads skip almost all of that. Glass is heated, pressed into a mold (sometimes by the thousands per hour), and cooled on a much faster schedule. Some are annealed properly, plenty are not. Some "lampwork style" beads on the market are actually cast resin or lightweight glass with a printed pattern layer, no torch involved at all.
Neither category is inherently worthless. Molded glass has its place and its price point. The problem is when it's sold, knowingly or not, as handmade lampwork at handmade prices.
Look at the Hole First
This is the single fastest tell and most people never think to check it.
On a lampwork bead, the mandrel hole is formed by the metal rod itself, so it should be relatively smooth, slightly tapered, and centered through the glass. You'll often see a faint release line or a tiny bit of bead release residue (a white or grayish coating used to keep the glass from fusing to the mandrel) inside the hole if it wasn't fully cleaned out.
On a molded bead, the hole is often perfectly straight-walled, exactly the same diameter top to bottom, almost too uniform, because it came from a metal pin in the mold rather than a rod that was hand-shaped around.
Hold the bead up and look through the hole with a flashlight. Slight irregularity is a good sign. Machine-perfect uniformity across an entire strand of "artisan" beads is a red flag.
Check for Asymmetry, Just a Little
A hand-torched bead is never perfectly symmetrical, even when the maker is aiming for symmetry. Look at a round bead from the side. There will be tiny variations, a slightly different curve on one end versus the other, small differences in how a dot or stringer line sits relative to its neighbor on the same bead.
That's not sloppiness, it's proof a human being with a torch made a judgment call in real time. If you line up ten "handmade" beads from a seller and every single one has an identical dot pattern spaced with laser precision, you're likely looking at a mold, or beads pressed from a single master shape and hand-decorated only on the surface.
Study the Bubbles
This one surprises people. Bubbles are not automatically a flaw in lampwork glass, in fact tiny, scattered, naturally occurring bubbles are often a sign of real flamework, because it's genuinely difficult to melt and shape glass at the torch without introducing some air.
What you want to notice is the pattern. Lampwork bubbles tend to be irregular in size and randomly distributed, sometimes elongated slightly from the shaping process. Mass-produced pressed glass sometimes shows large, uniform bubbles in a repeating pattern, evidence of the mold and pressing process rather than a torch.
A seller who's proud of their work will usually tell you upfront if a bead has a bubble and why they kept it (some collectors specifically like an "air trap" bead, where a bubble was deliberately captured under a clear glass layer for a magnifying effect). That kind of detail in a listing is usually a good sign you're dealing with someone who actually made the piece.
Weight and Wall Thickness
Pick the bead up. Lampwork beads, because they're built up layer by layer around a mandrel, tend to have some heft relative to their size, especially anything with multiple layers of color or a raised design.
Cheap glass imitations are frequently hollow-pressed or made from thinner glass to save on material and production time, so they can feel surprisingly light for their visual size. This isn't a hard rule (some lampwork techniques, like hollow beads, are intentionally light), but combined with the other signs above, weight is a useful gut check.
Ask About COE and Kiln Annealing
Here's a question that will tell you almost everything about whether a seller understands their own material: what COE glass do you work in, and how do you anneal your beads?
COE stands for coefficient of expansion, basically how much the glass expands and contracts with heat. COE 104 (soft glass) and COE 33 (borosilicate, like Pyrex) are the two most common families in lampwork, and they can't be mixed in the same bead without cracking. A maker who works seriously in the medium will know their COE without hesitation and will usually mention their annealing process, kiln brand or type, hold temperature, cool-down schedule, because it's something they had to learn and troubleshoot themselves.
Someone reselling factory beads as "artisan lampwork" usually can't answer this question at all, or gives a vague non-answer. That's not proof of dishonesty by itself, but it's a meaningful gap.
The Price Pattern to Watch For
Handmade lampwork beads take real time. A single focal bead with layered color, stringer work, and a raised dot pattern might represent thirty minutes to over an hour of torch time, before it even goes in the kiln to anneal overnight. That labor shows up in the price.
Say a shopper finds a strand of twenty "lampwork" beads online for twelve dollars total. That's sixty cents a bead, for a process that, done by hand, would represent hours of skilled labor across the whole strand. It's not impossible for a maker to price generously, especially early in their career, but a price that low across a large quantity is a strong signal you're looking at machine-made glass, glass-look resin, or beads assembled overseas in bulk and marketed with lampwork terminology because it sells better.
That doesn't make the item bad. It makes it a different product. The issue is only when the price and the description don't match what you're actually getting.
A Quick Checklist for Shopping
When you're looking at a listing or holding a bead at a show, run through this:
- Is the hole slightly irregular, tapered, or does it show release residue, versus perfectly machined?
- Are there small asymmetries between beads on the same strand, or is every one identical?
- Do the bubbles (if any) look randomly scattered, or uniform and mold-like?
- Does the bead have noticeable weight for its size?
- Can the seller tell you their COE and describe their annealing process without hesitation?
- Does the price reflect actual torch time, or does the math only work if it was mass produced?
No single item on this list is a slam dunk on its own. Together, they paint a pretty reliable picture.
It's Fine to Just Ask
Most people who actually work at a torch love talking about it. Ask a seller what glass they use, how long a particular bead took, whether they made it themselves or sourced it from a supplier for assembly. A real lampwork artist will usually light up (sorry) at the chance to talk shop. If a seller gets cagey or the answers don't add up, trust that instinct.
Wrapping Up
Buying handmade glass is ultimately about knowing what you're paying for, not just the finished look but the hours, the flame, and the kiln time behind it. Once you know what to check, a hole, a bubble pattern, a bit of weight in your palm, you'll be able to tell real lampwork from a lookalike pretty quickly, and you'll shop with a lot more confidence whether you're buying a gift or a piece for yourself.
See the latest beads on the torch at msmussyjewels.com