Chelsea Filter Knew Concepts Universal 100–240V AC adaptor

Universal 100–240V AC adaptor

Sold by the pound

6" x 2" x 1/2" Mounting Wood box Material Natural Arkansas stone Color Varies — natural product Quantity 1 stone

Technique Swiss Draw Sleeve T

Chelsea Filter Knew Concepts Universal 100–240V AC adaptorThe Chelsea filter is a compact gemological tool used to help identify certain red, blue, and green gemstones by observing characteristic color reactions under filtered light. It is especially useful for spotting imitations mixed into colored stone parcels and jewelry, and for differentiating emerald from common emerald look alikes. Features Assists in identifying select red, blue, and green gemstones Commonly used to detect simulants in colored stone