Filter

Ruby Filter. Item No. DK91003
Size: 53 x 33 x 14mm
This quality filter helps you distinguish ruby from other red gemstones including pink Sapphire, Spinel and Tourmaline.
Chelsea Filter. Item No. DK91004
Size: 53 x 33 x 14mm
When viewing gems through the Chelsea filter only deep red and yellow green light can pass through the filter enabling you to distinguish emeralds from imitations, also exam ruby and sapphire with the Chelsea filter. Our Chelsea filters are made from high quality materials and finished in any colour of your choice, we also offer free company logo printing which is excellent for advertising. Chelsea filters with your company logo on them are perfect promotional gifts for your business!