真珠の穴あけ Drill a hole in the pearl.

南洋真珠です。
This is a south sea pearl.

指輪に留めるために南洋真珠に穴を空けます。
まずは、穴を空ける位置に印をします。
The process of this time is to drill a hole in the pearl  in order to set it into a ring. 
At first, mark the position to drill a hole.
 

真珠の穴あけ専用の工具。
This is a specialized tool for drilling a hole in the pearl.

完了!
Complete!