If I had unlimited funds I would spend a large proportion of it on objects made from jade, both artefacts and modern jewelry pieces. The subtle shades of green and lilac are what appeal to me. Jade jewelry is understated, rather than the “in your face” obviousness of many other stones.
Jade is an incredibly tough material, stronger than steel, and in pre-historical times was used for axe-heads, knives and weapons. It is only more recently that Jade’s beauty has led to its use in jewelry and fine ornaments.
There are two forms of jade, jadeite and nephrite. The two have very different structures, but exhibit similar properties. The structural differences do not affect the uses to which the jade is put, they are only significant to a collector of gems.