Results 271 to 280 of about 4,649 (283)

dyed gemstone

2009
openaire   +1 more source

Burma gemstones

2009
openaire   +1 more source

burnt gemstone

2009
openaire   +1 more source

bleaching gemstone

2009
openaire   +1 more source

Silica Gemstones

openaire   +1 more source

flat gemstones

2009
openaire   +1 more source

Gemstone Constants

1983
openaire   +1 more source

coated gemstones

2009
openaire   +1 more source

new gemstone

2009
openaire   +1 more source

treated gemstones

2009
openaire   +1 more source