Question 1

Is all blue glass cobalt?

Accepted Answer

No, not all blue glass is cobalt glass. Only those made with cobalt oxide can be called cobalt. In some pieces, the presence of copper oxide accounts for the color, however, cobalt glass is much more common. You'll find a collection of cobalt glass on 1stDibs.

Question 2

How can I tell if a glass is cobalt blue?

Accepted Answer

Cobalt blue glass is a deep blue glass that often gets its color by the addition of cobalt oxide in the molten glass mixture when the glass is being formed. The best way to identify cobalt blue glass is by the color. Shop a collection of cobalt blue glass from some of the world’s top sellers on 1stDibs.

Question 3

How do you identify cobalt blue glass?

Accepted Answer

If your glass has a blue tint to it, it is likely cobalt blue glass. There are three shades of cobalt glass; dark cobalt, which has a slight purplish hue, light or cornflower blue and medium blue. To verify its authenticity, check with an appraiser. You can also shop a collection of cobalt blue glass from some of the world’s top sellers on 1stDibs.

Question 4

How old is cobalt blue glass?

Accepted Answer

How old cobalt glass is varies greatly. Ancient Mesopotamian examples exist from roughly 2000 BC. In China, cobalt glass became common during the Zhou Dynasty, which lasted from 1122 to 221 BC. European cobalt glass may date back to as early as the 15th century. Shop a collection of antique cobalt glass on 1stDibs.

Question 5

Does cobalt make glass blue?

Accepted Answer

Yes, cobalt oxide makes glass blue. Different amounts of cobalt can be used to create more saturated levels of blue or to simply neutralize yellow for a more clear finish. Copper oxide can also be used to create a blue tinted glass. Shop a collection of cobalt glass from some of the world’s top sellers on 1stDibs.

Question 6

What is American cut glass?

Accepted Answer

American cut glass is a technique used for decorating glass. The period from 1771 to 1876 is considered the early period of American cut glass — later, cut glass was called Brilliant glass. This technique is associated with high labor costs and involves the work of skilled craftsmen — American cut glass is considered a luxury item and can be very valuable.

Question 7

What is Bohemian-cut glass?

Accepted Answer

Bohemian glass is decorative glassware from the 13th century onwards made in Bohemia and Silesia. It is famous for its cut and Baroque style engraving, which was crafted between 1685 and 1750. On 1stDibs, find a collection of authentic Bohemian-cut glass pieces from some of the world’s top sellers.

Question 8

How can I tell if glass is brilliant cut?

Accepted Answer

To tell if glass is brilliant cut, try striking it with your finger. It should produce a sound like a ringing bell. Because so many convincing replicas exist, consider having an experienced and licensed appraiser evaluate the piece. On 1stDibs, shop a variety of expertly vetted American brilliant cut glassware.

Question 9

What is American Brilliant cut glass?

Accepted Answer

American Brilliant cut glass is deeply and sharply cut glass known for its reflective quality and highly polished nature. This type of glass is thick, heavy, and very clear.

Question 10

How can you tell if cut glass is valuable?

Accepted Answer

Cut glass is a highly valuable collectible on any antique market. Cut glass will tend to have a defined pattern with sharper detail. You should also look for mold marks as cut glass should be sharp and not smooth. Find a variety of glass collectibles and art glass on 1stDibs.

Question 11

How do I clean cut-glass decanters?

Accepted Answer

To clean a cut-glass decanter, fill your sink with warm water and mild dish soap. Place the decanter in the sink and wipe it with a soft cloth. Rinse thoroughly with warm water and dry with a soft towel. On 1stDibs, shop a range of antique and vintage decanters.

Question 12

Is a diamond real if it cuts glass?

Accepted Answer

It is not necessarily true that a diamond is real if it cuts glass. Before the advent of high-quality synthetic gemstones, attempting to scratch a piece of glass with a gemstone was a more accurate way of determining whether it was a real diamond. However, some human-made stones are now hard enough to produce scratches on glass, just like diamonds. As a result, experts generally say that the best way to tell if a diamond is real is to have it inspected by an experienced jeweler, dealer or appraiser. Shop a large collection of diamond jewelry on 1stDibs.

Question 13

How can I tell if cut glass is American Brilliant?

Accepted Answer

To tell if cut glass is American Brilliant, look for deep cuts that reflect light with a brilliance. If you can, flick the glass gently with your fingernail and listen for a bell-like ring. Always purchase crystal from a reputable seller to ensure authenticity. Shop a large collection of American Brilliant crystal from some of the world’s top sellers on 1stDibs.

Cobalt Cut Glass

Antique 1890s Czech Bohemian Vases

Hand Cut Cobalt Glass Goblet – Gilded - Bohemian Glass video

Vintage 1920s Belgian Art Deco Vases

Val Saint Lambert Cobalt Cut to Clear Overlay Crystal Rose Bowl or Vase

21st Century and Contemporary French Beaux Arts Decorative Bowls

Martin Benito France Centerpiece Cobalt Crystal Dore Bronze Swans

Antique Late 19th Century Czech Bohemian Vases

Bohemian Overlaid Cobalt Opal Goblet Ornamental Floral Motif European

2010s English Side Tables

Danny Lane Blue Caramel Glass Side Table

Vintage 1930s Czech Vases

An Art Deco Vase

Vintage 1940s Czech Rococo Crystal Serveware

Cobalt Bohemian Czechoslovakian Crystal Bowl with a Deep Intricate Cut Pattern

Antique 19th Century French Glass

Cut to Clear Cobalt Decanter and Goblet Set

20th Century Japanese Crystal Serveware

Vintage Cobalt Cut Crystal Stem Coupe Glasses, Set/12

20th Century Japanese Crystal Serveware

Vintage Cut Cobalt to Clear Crystal Coupe Glasses, Set/9

20th Century Japanese Crystal Serveware

20th Century Cobalt "Coronation" Cut Crystal Stem Glasses, Set of 14

20th Century Japanese Crystal Serveware

20th Century Cobalt Cut to Clear Crystal Stem Glasses, Set/10

Vintage 1950s Czech Art Deco Crystal Serveware

Large Cobalt Bohemian Czechoslovakian Cut Crystal Punch Bowl or Centerpiece Bowl

20th Century Czech Vases

Beautiful Cobalt Blue Cut-Glass Vase

Vintage 1930s Unknown Art Deco Decorative Bowls

Cobalt Blue Cut to Clear Glass Bowl

Antique 19th Century European Glass

Three Goblets, Bohemian Glass, Mameluke engraving , Hunting motif 19th century

Mid-20th Century Unknown Bohemian Vases

Bohemian Cobalt cut to Clear Vase

20th Century Chinese Art Deco Drop Necklaces

Vintage Cobalt Blue and Clear Cut Glass Sterling Silver Collar Necklace

Cobalt Cut Glass For Sale on 1stDibs

How Much is a Cobalt Cut Glass?

More Ways To Browse