Moderately priced vintage selections in cobalt blue vary widely in variety and price. You can still find a single Chevron milk pitcher or violin-shaped bottle in this color for well under 30 dollars. Authentic Shirley Temple pieces from the Depression-era can still be found for under 50 dollars apiece.

What is a blue glass?

Cobalt glass—known as smalt when ground as a pigment—is a deep blue coloured glass prepared by including a cobalt compound, typically cobalt oxide or cobalt carbonate, in a glass melt. Cobalt glass such as Bristol blue glass is appreciated for its attractive colour and is popular with collectors.

How can you tell if blue glass is cobalt?

Look for any type of glassware, vase, flask or jar that has a blue appearance. These are all considered to be cobalt glass. Some glass will be entirely blue, while other pieces may have a striated blue appearance. It is also common for the glass to have white swirled along with the blue.

Why is Seaglass blue?

Cobalt, a bright blue mineral, is the colorant in true blue sea glass. Cobalt oxide to be exact. Other forms of cobalt are used to create vibrant turquoise or violet blue purples. Cornflower blue sea glass comes from bottles and tableware with limited amounts of cobalt oxide added to the glass mixture.

What is blue carnival glass worth?

With its stunningly beautiful colors, iridescent glaze, and endless variety, carnival glass is a popular collectors item that used to be given away for free. Today, its common for single pieces to fetch $30 to $50 at auction with especially desirable items selling for much more.

Is Blue Seaglass rare?

Even though cobalt blue glass has been made throughout the generations, the color is still rare, especially when compared with clear or brown glass. It is thought that only about one in 250 or so pieces of real sea glass is found in a cobalt blue color, and double that for cornflower blue sea glass.

What is the most valuable piece of carnival glass?

According to Colleywood Carnival Glass, the following colors are among the rarest and most valuable:Fenton Ambergina - a deep orange-red tone.Northwood Marigold - a warm-toned deep yellow.Fenton Cherry Red - a dark, glowing red.Northwood Black Amethyst - a very dark purple that appears almost black.More items