1. Quartz crystals natural, unworked or worked fall under H. 71.02(5). 1983 ECR 697D (T).

2. Synthetic industrial diamonds are correctly assessable under H. 71.03 (read with any exemption notification in force) which is wide enough in scope to cover the goods. 1985 ECR 718 (T).

3. Diamond compax (diamond ebessing tool) is an article incorporating synthetic diamond covered by H. 71.12/15. 1986 (7) ECR 270 (T).

4. Pearls (broken) are classifiable under H. 71.10 and not under Chapter 5 as pearls of non-jewellery quality. 1988 (15) ECR 343 (T).