Historical gem treatments, Pliny the Elder
Pliny the Elder and Gemstones: Part III – colours
Pliny the Elder and Gemstones: Part II
Pliny the Elder and Gemstones: Part I
Winter Colours
July birthstone -ruby
How to measure the size of a pearl
Organic gems - pearls, Pearls - shapes and colours
Pearls – shapes and colours
June birthstone – pearls
navette jewellery 