PRINCESS HOUSE VINTAGE VASE DIAMOND POINT CUT CRYSTAL HEAVY 8" FOOTED BRILLIANT

PRINCESS HOUSE VINTAGE VASE DIAMOND POINT CUT CRYSTAL HEAVY 8" FOOTED BRILLIANT LEAD CRYSTAL

Discovered in the seventeenth century by an Englishman called George Ravenscroft, lead crystal production involves the adding of lead oxide powder into molten glass which, is then either blow molded or pressed into shape, depending on the manufacturer's preference and the complexity of the finished article. To earn the classification of -Full Lead Crystal, the mixture must contain at least twenty four percent lead oxide and the highest concentration achievable that will allow any kind of workability is thirty three percent. The higher the lead content, the more brilliance the finished article will have. So in order to create a balance between brilliance and workability, most manufacturers aim somewhere in between these two markers.

Once shaping is complete, the crystal is then allowed to slowly cool in an annealing oven prior to any flutes and facets being worked into the molded product by sk