What glass is most valuable?

Pink glass is most valuable, followed by blue and green. Rare colors such as tangerine and lavender are also worth more than common colors like yellow and amber.

What is the most rare glass?

Glassware. Naturally, a lot of glassware doesnt have the same provenance as China and other porcelain products when it comes to age, but some of it is still pretty extraordinary. The most expensive piece of glassware ever sold at auction was a Roman glass bowl, intact after 1,700 years of existence.

How can you tell if glassware is vintage?

Other markings on antique glass pieces that offer clues to its age are: Pontil mark of a blown glass piece and whether it is highly polished or not. Mold marks. Any marks within the glass itself such as bubbles .Antique Glass MarkingsTrademark.Logo.Symbol.Signature.