Red glass was a tricky color for traditional glassmakers to get right. For one thing, the batch needed gold chloride, copper, or selenium, and the red hue would appear only after a second heating in the furnace.
Timing was everything here; otherwise, they were left with clear or even brown glass. All of this made red glass harder and costlier to make than common colors, especially when gold was used, until cheaper copper and selenium reds made everyday lines such as Royal Ruby possible.
That is one reason good red glass can cost more than the same piece in a common color. Still, most vintage ruby red glass sells for modest money; it’s the right maker, pattern, and form that bring hundreds of dollars, like the $550 Cambridge Carmen goblet set.
How to Identify Vintage Ruby Red Glass
Before pricing anything, you first need to figure out what type of red glass you actually have. This is the list of things to look at.
True Ruby vs Flashed and Stained Red
This is the primary check and differentiates the $10 item from the $100 one. True ruby glass is red through and through; it has red color all the way across the glass piece.
Flashed red, on the other hand, is clear glass with the red coating applied to its surface. Often, it is cut to reveal clear glass below. Use your fingernail to feel around the edge of the base for any chips. If you find a distinct layer there or notice the clear glass beneath the red coating where it got worn down, it is flashed. Flashing is not necessarily bad for collectability, but ruby is worth more money.
Ruby-stained glass is a third type: a red stain fired onto the surface of clear pressed glass, often seen on souvenir pieces engraved with a name, town, or date around 1900.
Weight and Feel
The older red glass usually feels heavier than the modern glass of the same size. Some of the finer Elegant glassware of the 1930s and 1940s was made with lead, while everyday Depression glass usually was not.
So when you hold a Cambridge Carmen goblet from those years and the modern-day replica in the same design, you will see how different they are in weight.
Base and Seam Lines
Turn the item upside down. Hand-made antiques typically have a pontil mark, which is where the glass was snapped from the blowpipe. Machine-made pieces, from the Depression era on, will have faint seam lines that run vertically.
Also, modern reproductions generally have sharper seam lines and a rounder, cleaner base than an antique would.
Color Depth Under Light
Hold the piece up to a window or bright light. Real ruby glass keeps its depth and looks slightly darker toward the thicker areas. Cheap modern reds look flat and uniform, almost plastic-like.
Maker’s Marks
Maker’s marks work well for dating, but it gets a bit tricky for red glass. Most classic makers, like Fenton prior to 1970, Anchor Hocking’s Royal Ruby line, and Cambridge, made items without any mark and only with paper labels, which mostly fade or get lost with time.
That means an unmarked item does not necessarily have to be a fake or more recent.
Some famous makers are Anchor Hocking, Fenton, Fostoria, Cambridge, Imperial, Westmoreland, Indiana Glass, Viking, Blenko, Whitefriars, Murano makers such as Seguso and Barovier, and Bohemian makers such as Egermann and Moser.
12 Valuable Antique and Vintage Red Glass Patterns and Pieces
Below are the red glassware patterns and pieces collectors pay real money for. Learn what makes them special and how much they can be worth today.
1. Anchor Hocking Royal Ruby
Royal Ruby is the patented name for the dark red glass made by Anchor Hocking since 1938. Its color comes from the copper oxide and not gold, thus giving it a deeper shade compared to gold-red colors.
Hocking’s Royal Ruby items are usually not marked and were originally released with tiny paper labels. The line includes tumblers, pitchers, vases, plates, and even Schlitz beer bottles from 1949, 1950, and 1963.
- Estimated Value: $10 to $400+ per piece
- Production Years: 1938 to 1967, then 1973 to 1977
- What to Check: Deep even red, unmarked base
2. Fenton Hobnail Cranberry Opalescent
Fenton began producing the hobnail glass in 1939. Cranberry opalescent was one of the first three colors when Hobnail joined Fenton’s regular line in 1940. It is also the most sought-after. This design shows raised bumps in hexagonal groups.
The true cranberry opalescent glass always has a white, milky appearance at its thin edges. Pieces produced before 1970 have no permanent marking, so you need to identify them by their designs and opalescent appearance.
- Estimated Value: $30 to $700
- Production Years: 1939 onward
- What to Check: White glow at rim edges
- Value Notes: Baskets, lamps, and epergnes are most valuable.
3. Fostoria Coin Glass in Ruby
The Fostoria Coin line dates back to 1958 and features oversized and highly embossed coin designs resembling American currency. You’ll see the eagle dated 1887 and the Liberty Torch.
This pattern was produced in crystal, amber, blue, olive green, and ruby colors, with the ruby usually being more collectible than the crystal version.
Lamps, covered candy boxes, and large bowls are the most valuable pieces here. Original Fostoria coins are frosted, while later reissues often left them clear, so frosted coins are much more popular than clear ones.
- Estimated Value: $30 to $250
- Production Years: 1958 to 1982 (ruby from about the late 1960s)
- What to Check: Frosted coins, ruby color depth
4. Cambridge Carmen
Carmen is the ruby red glassware made by the Cambridge Glass Company, using selenium and cadmium sulfide rather than gold. It is one of the most desirable colors of Cambridge, specifically in the Nude Stem #3011 and Rose Point pattern.
Pieces from about 1922 to the mid-1950s can bear a C in a triangle, though many are unmarked.
- Estimated Value: $40 to $600+
- Production Years: 1931 to 1958
- What to Check: Rich red, thinner spots lean yellow
- Value Notes: Nude Stem and Rose Point etched pieces are top-tier.
5. Imperial Candlewick in Ruby Red
Candlewick is probably the most famous design by Imperial and easily recognizable due to the very small beading around the edges reminiscent of tufted Candlewick needlework.
Most Candlewick was produced in clear glass, which means any piece in ruby red is very rare. Collectors look for the #3400 and #3800 stemware with ruby bowls on clear stems.
- Estimated Value: $50 to $400+
- Production Years: 1936 to 1984; ruby was made in shorter runs
- What to Check: Beaded edges, intact beads
- Quick Notes: Ruby is rare, damaged beads drop value fast
6. Fenton Red Carnival Glass
Fenton introduced iridescent glass in 1907, and was one of the first makers of red carnival glass, which came in the early 1920s. Red carnival glass is one of the most prized carnival colors, as very few manufacturers made it.
Pay attention to this iridescent glaze, which changes color from red to gold as it reflects light. Glass items manufactured before 1970 lack any mark at all. The hobnail fairy lamp shown here is a later Fenton piece; early red carnival bowls and plates bring the top prices.
Imperial also made a few red carnival pieces, so pay attention to the pattern.
- Estimated Value: $250 to a few thousand dollars
- Production Years: Early 1920s for early red (Fenton carnival from 1907)
- What to Check: Iridescent shift, deep red base color
7. Cranberry Glass Pitcher
Cranberry glass is a glass in shades of red/pink, obtained by adding gold chloride to the glass formula. Cranberry glass from the Victorian period of the late 1800s is the most sought-after among collectors today.
The pitcher in this example was listed as the ‘Arabian Knights’ pattern with a clear handle.
Features such as blown glass, application of a clear glass handle, pontil marks on the bottom, and opalescence in forms like coin dot and hobnail make it more valuable.
- Estimated Value: $150 to $600+
- Production Years: Late 1800s for true Victorian
- What to Check: Applied handle, pontil mark, opalescent design
8. Bohemian Ruby Cut-to-Clear Glass
The Czech pieces have clear crystal covered by a layer of ruby glass, then cut on a wheel so the clear glass underneath is visible in the form of deer, castles, grapes, or geometric shapes.
The most collectible examples are the decanters with genuine cased overlay from the latter half of the 19th century.
- Estimated Value: $125 to $550+ per decanter
- Production Years: 1850s onward, best pieces pre-1900
- What to Check: Cased overlay depth, cut quality
- Value Notes: Flashed versions are not worth a lot.
9. Murano Sommerso Ruby Red Vase
The meaning of the ‘Sommerso’ in Italian is “submerged”. The concept is to layer colored glass within a very thick outer transparent shell.
The ruby red Sommerso vases made in the post-war period at Murano are great collectibles from the mid-century modern era, especially pieces attributed to named designers like Flavio Poli.
Most of these pieces did not have signatures and came with paper tags, which are rare to find intact and add value.
- Estimated Value: $200 to $1,500+
- Production Years: 1950s to 1970s
- What to Check: Thick clear casing, sculptural form
10. Viking Epic Ruby Swung Vase
Epic line was produced by Viking Glass of West Virginia from 1956 up until about 1975. The line perfectly reflected the mid-century modern look through its high and elongated swing vases.
Ruby and amberina (glass that is red on one end, yellow on the other) were two of Viking’s seven colors by 1964. The value depends on size; taller vases are worth more.
- Estimated Value: $60 to $265
- Production Years: 1956 to 1975
- What to Check: Tall swung form, deep ruby or amberina shift
11. Westmoreland Red Hen on Nest
Westmoreland is credited with first using the name “Hen On Nest” for its covered dishes in the 1930s. Their hens in milk glass, ruby, and other colors are very popular amongst collectors.
The feather details are the key identifier; Westmoreland hens are far more detailed than competitors’.
Indiana Glass, Fenton, and L. E. Smith also produced hens; Indiana’s ruby hens are a red stain over amber glass, so look for worn spots on the base.
- Estimated Value: $40 to $250+
- Production Years: 1930s onward
- What to Check: Detailed feathering, red comb and eyes
12. Avon Cape Cod Ruby Red Glass
The 1876 Cape Cod collection of Avon ruby red pressed glassware is one of the ruby sets collectors in America often come across. The set was designed after the classic Boston Sandwich Glass patterns of Cape Cod, featuring designs with starbursts, diamond cuts, and lines.
The line ran to 37 different pieces in all, made by the Wheaton Glass Company of New Jersey. Don’t confuse it with Imperial Glass’s Cape Cod, an older pressed pattern Imperial introduced in 1932.
- Estimated Value: $10 to $60 per piece
- Production Years: 1975 to the early 1990s
- What to Check: Starburst pattern, deep even ruby
What Makes Old Red Glass Valuable?
There are five factors that work together to determine the value of old red glassware.
- The first one is manufacturer and pattern, since a piece of Fenton or Cambridge provenance is worth more than an unsigned one.
- Then comes age: items dated prior to 1940, in particular Depression and Elegant, are likely to be highly valued.
- Third is the scarcity of the shape: two pieces of the same color, namely a Royal Ruby tumbler and a Royal Ruby pitcher, may differ in price by $100.
- Glass quality is critical, too: even a small chip on the rim halves the value of the item.
- Completeness is important: a complete dinnerware service or a decanter with a matching stopper is worth much more than the sum of individual pieces.
The next time you come across a red pitcher or goblet at a junk shop, you’ll know where to start your research. Collecting by color? Our guide to collectible green glass covers many of the same makers, from Fenton to Fostoria.
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