Production Glass
Production sea glass was originally made for bottles or windows, car lights, dinnerware and décor such as lamps, vases and decorative ceramic items. Very often, production sea glass will achieve a different hue than other types of glass, have a bump or ridge, or appear more vibrant due to the tint used in production.
Designer Glass
Designer sea glass figured in glass objects that were less utilitarian than production glass. It was part of artistic objects such as blown glass, stained glass and one-of-a-kind pieces. Generally not just one color, designer glass often blends and combines colors creating an iridescent appearance or other unusual appearance. Designer glass is very rare, a coveted find among beach-glass collectors.
Red, Yellow and Orange Sea Glass
Red, yellow and orange sea glass is considered the rarest. As glass of these colors was rarely mass-produced due to cost, sea glass in one of these hues is a true treasure. More than likely, any red, yellow or red sea glass originated from car brake lights, warning lights on boats, lanterns, lamps, stained glass or Depression glass.
Colbalt Blue, Lime Green and Amber
While not as difficult to find as red, yellow or orange sea glass, glass of cobalt blue, lime green and amber is also rare. These glass pieces probably began as perfume bottles, knickknacks and candy dishes. Each one of these colors, while not easy to find, is not impossible to find either and provides depth to a collection.