JEWELLERS CHELSEA FILTER FOR GEM TESTING JEWELLERY - TC70

Description

JEWELLERS CHELSEA FILTER
A most valuable aid for testing both natural and synthetic emeralds, rubies and other gemstones. Complete with instructions.
Originally created to distinguish emeralds from imitations and doublets. A doublet is two stones one of which may be genuine which are pasted together to make a larger stone. Only deep red and yellow/green light can pass through the filter. The filter should be held close to the eye while examining brightly lit stones. Under these conditions, emeralds will look red or pinkish. Imitations look green. Other stones that can be examined with the Chelsea color filter are ruby and sapphire.
https://stores.ebay.co.uk/hswalsh/ - Visit our UK eBay store here.
JEWELLERS CHELSEA FILTER A most valuable aid for testing both natural and synthetic emeralds, rubies and other gemstones. Complete with instructions. Originally created to distinguish emeralds from imitations and doublets. A doublet is two stones one of which may be genuine which are pasted together to make a larger stone. Only deep red and yellow/green light can pass through the filter. The filter should be held close to the eye while examining brightly lit stones. Under these conditions, emeralds will look red or pinkish. Imitations look green. Other stones that can be examined with the Chelsea color filter are ruby and sapphire. https://stores.ebay.co.uk/hswalsh/ - Visit our UK eBay store here.