Casing is the traditional and highest quality way of making crystal colorful. In this ancient technique, one or more layers of colored glass are fused to a base of clear crystal.
An expert glasscutter then cuts through the "casing" so that the underlying colors are revealed and incorporated into the design.
Due to the intricately detailed workmanship in the crafting of each piece of true cased crystal, availability is limited each year. This only serves to further enhance the value of cased crystal.
Cased crystal bowl etching
Cased crystal glass etching
The value of cased crystal
Due to this two-layer technique, each piece is blown twice, making cased crystal significantly more valuable than similar clear crystal. Many producers take shortcuts by simply painting their clear crystal. This process gives the pieces a tendency to scratch and fade over time and ruin their value. You can actually see the difference between painted crystal and cased crystal.
So when looking for quality colored crystal, make sure it is genuine cased crystal. Cased crystal consistently appreciates in value, is always collectible and is becoming more rare as companies turn to cheaper surface painting.
Cased crystal glasses
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