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Very Rare * Collectable ~ From a New York City Jewelers Estate Stock Authentic Strass Gemstone Leaded Diamond ...!!!!!
You are bidding on one (1) Beautiful Simulated Diamond also referred to as Strass Gemstone - very Rare .. very Authentic ..& very Collectible.
These are New Old Stock from a Jewelers Estate. Real ...!!!


v From a New York City Jewelers Estate stock that dates from the 1700's. Pictures of the lot in this listing pictures can further explain the provenance (Jewelers address, French markings & H.S. Import Stamp etc..). It has been crafted in France, adding a touch of European sophistication to its heritage.

~ Georg Friedrich Strass (1701–1773), an Alsatian jeweler, is credited with inventing the Rhinestone, known in Europe as "SS", “Strass” or "Strass Stone".
~ In the 1730s, Strass developed a technique to mimic diamonds using lead-based glass—enhancing brilliance with metal foil backing, later replaced by vapor-deposited mirror coatings.
~ His creations were so convincing that he coined the term “Simulated Gemstone”, and was appointed King’s Jeweler by Louis XV of France.

~ Strass used bismuth and thallium to boost refractive qualities and metal salts to alter colors—essentially crafting a palette of faux gems that rivaled nature.
~ The glass formula became a borosilicate blend with potassium, lead, alumina, and arsenic—yielding stones that could mimic diamonds, sapphires, and emeralds.
~ Strass gemstones became popular among European aristocracy, not just as substitutes but as status symbols in their own right.
~ They were safer to travel with, accessible to the rising middle class, and often used in paste jewelry—a genre that dates back to Ancient Rome and Greece, but flourished in the 18th century thanks to Strass’s innovations.


