Antique glass appraisal, online
That iridescent vase from a relative's cabinet, a set of cut tumblers, a colored bowl you cannot quite place? Our team researches what your glass is genuinely worth and returns a clear, plain-English value report within three days.
Structured research, reviewed for clarity
We start by comparing your glass against recorded sales of similar pieces, the prices things actually sold for rather than asking prices. From there our team weighs the maker or factory, the technique, the color, and the condition, checking for signatures, pontil marks, acid-etched marks, and paper labels where they exist. You receive a plain-English report with an estimated value range and the reasoning behind it, reviewed by our team before it reaches you.
What affects the value of antique glass
Glass value rarely comes down to a single detail. A signature matters, but so does whether the color is rare, whether the form is desirable, and whether the piece has survived without damage. Our team weighs these together rather than reading any one of them in isolation.
Maker, factory and signature
A piece by Tiffany, Lalique, Steuben, Daum, or a known Murano workshop sits in a very different market from anonymous factory ware. Signatures, acid-etched marks, pontil scars, and original paper labels all help place a piece, and their presence or absence can move value considerably.
Technique, color and form
Hand-blown cameo and cased art glass, cut lead crystal, and machine-pressed glass each carry their own value logic. Unusual colors, uranium or 'vaseline' glass, and elegant or early forms tend to command more than common shapes in ordinary hues.
Comparable sales
The most reliable signal is what comparable pieces have actually sold for at auction and through dealers, recorded results rather than hopeful asking prices. Our team builds the estimate around these real comparables.
Art glass, pressed glass, and cut crystal are different markets
It helps to know which world a piece belongs to. A signed Art Nouveau cameo vase, a 1930s Depression-glass pitcher, and a mid-century Murano bowl can look loosely related on a shelf yet sell to entirely different buyers at very different levels. Telling them apart takes attention to technique, wear, and mark, which is exactly the kind of assessment we research for you rather than leaving you to guess.
Inherited a glass collection?
Glass often arrives all at once, a china cabinet cleared after a move, a grandparent's shelves boxed up together. Some pieces are everyday tableware and some are quietly valuable, and it is hard to know which is which by eye. You can submit a single standout piece or a whole group, and our team researches each one and returns a clear value report, so you know what you are holding before you decide to keep, insure, or sell. Start at /submit, or read /how-it-works first.
A few reports we've delivered
Illustrative: signed Tiffany Favrile iridescent art glass vase, early 20th century
$1,200 – $3,500
Illustrative: Waterford cut lead crystal decanter with stopper, mid-20th century
$120 – $300
Illustrative: 1930s pink Depression-glass pitcher in a recognized pattern
$40 – $110
Illustrative: mid-century Murano sommerso cased art glass bowl, unsigned
$150 – $450Estimated ranges shown to guide research — not official appraisals for insurance, tax, or legal use. Illustrative examples.
Questions, answered honestly
How old does something have to be to be an antique?
As a rule of thumb, an antique is generally at least 100 years old. Items roughly 20–99 years old are usually called “vintage,” and the line shifts by category — but age alone never sets value. A 60-year-old designer piece can be worth far more than a century-old everyday object.
What affects the value of my item?
Value comes from a combination of factors: who made it, its age and rarity, condition, originality, provenance (its documented history), and — most of all — what comparable pieces have actually sold for recently. Our research weighs each of these to produce an estimated range.
I’ve inherited a collection — what do I do?
Start with the pieces you’re most curious about, or the ones you suspect are most valuable. Submit them individually, or for more than ten items use our white-glove service and we’ll research the whole batch together at a tailored rate.
Is this an official appraisal?
No. Every report is a thorough, researched estimate to guide your research — not an official appraisal for insurance, tax, or legal purposes. For those uses you’ll want a certified appraiser, and our report is a great, fast first step before that.
How accurate is a researched value report?
Our research is based on real comparable sales and a structured assessment of condition, era, and maker. It’s designed to give you a credible, well-researched estimate quickly. Like any estimate it isn’t a guarantee of sale price, which is why we always give a range rather than a single number.
“I had a vase from my grandmother and no idea where to start. The report was detailed, fast, and honest about the range.”
“Three days, a fair price, and a genuinely useful breakdown of comparable sales. Far better than waiting weeks.”
“Loved that it was upfront about being an estimate. It gave me exactly what I needed before talking to an auction house.”
Illustrative examples shown during launch — verified customer reviews will replace these as reports are delivered.
Find out what your glass is worth
A thorough, researched value report in 3 days. From $29, no subscription.
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