Art glass is one of the most exciting areas of collecting because no two pieces feel exactly the same. Colour, light, weight, shape and technique all work together to create objects that are decorative, sculptural and highly displayable. Browse the art glass collection at Collectibles by Deon to see the pieces currently available.
In South Africa, collectors can find a wide variety of art glass. Some pieces are locally made by South African glass artists. Others come from European, Italian, Czech, Bohemian, Scandinavian, American or Murano-style production. You may find studio glass, sommerso glass, carnival glass, pressed glass, paperweights, animal forms, sculptural vases, bowls, swans, fish, birds, abstract forms and colourful decorative pieces. This guide explains what art glass is, how it is made, how to identify better quality pieces, and how to avoid cheap imitations.
What is art glass?
Art glass is glass made primarily for beauty, design and artistic expression rather than everyday function alone. A simple drinking glass is usually made for use. An art glass vase, sculpture, bowl or figure is made to be looked at, displayed and appreciated for its colour, form and technique. Art glass can be handmade, studio made, factory produced or produced in small decorative ranges. Some pieces are signed by an artist. Others are unsigned but still show strong design and technical quality. The most important thing is not always the name on the piece. Form, colour, finish, technique, quality and condition all matter.
Art glass commonly found in South Africa
Collectors in South Africa often encounter several broad categories of art glass, including Murano and Murano-style glass, Italian sommerso glass, Bohemian and Czech art glass, carnival glass, pressed and moulded decorative glass, South African studio glass, paperweights, controlled bubble glass, cased glass, spatter glass, iridescent glass, animal-form and bird-form glass, mid-century modern glass and contemporary decorative glass. Because South Africa has long imported decorative objects from Europe, Britain, Italy and Asia, the local vintage market can include a wide mixture of origins. This makes collecting interesting, but it also means careful identification is important.
How art glass is made
Art glass can be made in several ways. The most familiar method is glassblowing. A glassmaker gathers molten glass on the end of a blowpipe, blows air into it and shapes the hot glass with tools, movement, heat and timing. The piece may be shaped freely or worked into a mould. Some pieces are pressed glass, meaning molten glass is pressed into a mould to create a repeated pattern or shape. Studio glass pieces are often made by individual artists or small workshops using blown, cast, fused, slumped, cut, polished or sculptural techniques. After shaping, glass must be cooled slowly in a controlled way through a process called annealing, which reduces internal stress and helps prevent cracking.
Important art glass techniques
Sommerso glass means submerged. One colour of glass is encased inside another layer, often clear glass, creating depth and making the colour appear suspended within the object. Sommerso is strongly associated with Murano and Italian art glass. The Murano-Style Amber Red and Clear Sommerso Art Glass Teardrop Vase and the Mid-Century Murano Sommerso Art Glass Fish Sculpture Attributed to Seguso Vetri d'Arte are good examples of this technique in the collection.
Cased glass is made when one layer of glass covers another. The outer and inner layers may be different colours, and some cased glass is later cut or polished to reveal the layers. Cased glass often feels more substantial than thin surface-coloured glass because the colour is part of the body of the piece.
Controlled bubble glass uses deliberately placed bubbles inside the glass, appearing in rows, spirals or regular patterns. The key word is controlled. Random bubbles from poor production are not the same as deliberate bubble decoration.
Spatter glass is made when small fragments of coloured glass are rolled into the hot glass before shaping. The colours spread unevenly, creating lively and unique patterns. Each piece has a unique colour distribution, which makes spatter glass attractive to collectors who enjoy one-of-a-kind pieces.
Iridescent glass has a shimmering surface that changes colour in the light, showing pink, blue, gold, green or purple reflections. Art Nouveau glass, carnival glass and many modern studio glass pieces use iridescent effects. Browse the carnival glass collection for iridescent pieces currently available.
Frosted glass has a soft satin surface rather than a clear shiny finish, created through acid treatment, sandblasting or moulding. It is often used for animal figures, paperweights, decorative panels and Art Deco-style pieces.
Pressed glass is made in a mould and can show raised patterns, geometric detail, floral designs, animal forms or decorative borders. Quality pressed glass should have good detail, clean moulding and a pleasing finish.
How to identify better quality art glass
Start by looking at the glass carefully in good light. A better quality art glass piece will often show good weight and balance, a carefully finished rim, a polished or finished base, strong colour depth, clean internal colour layers, intentional decoration, good symmetry or deliberate asymmetry, minimal roughness, no sharp unfinished edges, clear technique and a pleasing form from all angles. A strong piece should feel intentional. Even if it is abstract, the form should look designed rather than accidental.
The base often tells you a lot. Look for a signature, a label, a polished pontil mark, a rough pontil mark, a moulded mark, a maker's stamp, a registration number or wear consistent with age. A polished pontil mark can suggest hand finishing. Not all good glass is signed. Many collectible pieces are unsigned. However, if a seller makes a strong maker claim, the base should support it through a mark, label, catalogue match or reliable provenance. The Murano-Style Amber and Yellow Hand-Blown Art Glass Horn Vase and the Murano-Style Amber and Yellow Hand-Blown Art Glass Swan are good examples of how form and technique can be assessed even without a maker's mark.
How to spot cheap imitations
Cheap imitations can still be decorative, but they should not be described as fine studio glass, Murano, antique Bohemian or named maker pieces unless evidence supports it. Warning signs include very rough rims, sharp unfinished edges, lightweight glass with poor balance, cloudy or dull surface, messy colour application, random air bubbles sold as controlled bubbles, painted colour instead of coloured glass, poor mould seams, an uneven base that does not sit properly, modern import stickers with no maker information, generic labels saying Murano-style or Italian-style, and no evidence for a named attribution. A cheap imitation may look bright at first glance, but the details usually reveal the difference.
Murano versus Murano-style
This is one of the most important distinctions in art glass collecting. A piece should only be described as Murano if there is evidence supporting that origin, such as a genuine label, signature, maker mark, documented form, reliable provenance or strong comparison with known pieces. If there is no proof, the safer wording is Murano-style. Murano-style is still useful and honest. It describes the design influence without claiming the piece was made on Murano. This same rule applies to other makers. A piece should not be called Loetz, Kralik, Inwald, Baccarat, Fenton, Mdina, Whitefriars or Lalique unless there is supporting evidence. The Handmade Murano Art Glass Green and Amber Swan Sculptures in the collection show how maker attribution can be presented clearly and honestly.
Local South African studio glass
South Africa has its own studio glass story. Studios such as Red Hot Glass near Paarl have helped keep hand-blown glass visible in the local collecting and design market. South African studio glass may be signed, labelled or recognised by style, artist or studio history. Pieces by local artists can be especially appealing because they connect to South African craft and design rather than only imported glass traditions. When collecting South African studio glass, look for signatures, labels, studio provenance and clear artist attribution.
Common art glass forms to collect
Art glass appears in many shapes and categories. Popular forms include vases, bowls, paperweights, birds, fish, swans, ducks, dogs and animal figures, abstract sculptures, sommerso teardrops, jack-in-the-pulpit forms, controlled bubble pieces, ashtrays, perfume bottles, decorative plates, centre bowls and small cabinet pieces. A collector can build a collection by colour, technique, country, maker, animal subject or form.
What condition details matter?
Condition is very important with glass. Check carefully for chips, cracks, bruises, internal fractures, rim damage, base chips, heavy scratches, clouding, repairs, grinding or reshaping, loss of iridescence and damage to applied handles or decoration. Small chips can hide on rims, bases, tails, beaks, ears, handles and applied details. Always turn the piece slowly under light. For carnival and iridescent glass, also check the surface finish. Worn or patchy iridescence can affect display appeal.
How to describe art glass accurately
Good product descriptions build trust. Use wording such as signed studio art glass, unmarked art glass, Murano-style art glass, attributed to where supported, possibly where uncertain, in the style of where only visually similar, cased glass, sommerso-style, controlled bubble decoration, pressed glass, iridescent finish or frosted glass. Do not overstate. If the maker is unknown, say so clearly or simply describe the visible qualities. A well-written honest description is better than an unsupported famous maker claim.
Is art glass rare?
Art glass should not automatically be described as rare. Some pieces are rare. Many are not. A piece may be desirable because of colour, form, condition, maker, signature or technique without being rare. Use careful wording: collectable, distinctive, less commonly encountered, sought after by collectors, unusual form, signed example, documented pattern, or rare only where verified. This keeps the description trustworthy and accurate.
How to style art glass at home
Art glass is very easy to style because it reacts beautifully to light. Place pieces where light can pass through or reflect off the surface. A glass cabinet, windowside shelf, mantel, sideboard or open display unit can work well. Group pieces by colour for a strong effect. Amber and red glass together can feel warm and dramatic. Blue and green glass can feel cool and calm. Clear and frosted glass can create a softer, more refined display. Art glass pairs well with ceramics, crystal, silverplate, wood, books, mirrors, metalware, vintage lighting and modern interiors. One good art glass piece can become a focal point. A group can create a striking collection.
Why art glass is worth collecting
Art glass is worth collecting because it combines artistry, technique and display beauty. It is also flexible. You can collect signed studio glass, Murano-style forms, carnival glass, Czech glass, South African studio glass, pressed glass or small animal figures. There is no single correct way to build an art glass collection. The best approach is to learn slowly, handle pieces carefully, compare forms, check bases and buy pieces that combine beauty with honest identification.
If you enjoy decorative glass and collector guides, you may also find our articles on Blue Willow Pattern: History, Meaning and Collector Appeal and Lucia Ware: A Collector's Guide to South African Mid-Century Pottery of interest.
Explore the curated art glass collection at Collectibles by Deon and discover distinctive glass pieces selected for collectors, decorators and lovers of colour, form and meaningful design. For enquiries about specific pieces or availability, visit the Contact page, or learn more about the store on the About page.