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White crystal collected from a river in a mine location in Niigata Prefecture. The color is turbid and not very beautiful. It is cheap because it was ... more info

Produced for diamond cutting practice. Because it is for practice, the stone is a translucent stone that was sold for 50 yen at a natural stone shop. ... more info

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Just download the video URL into download.pl and run it to save it at hand. You can easily get what you want to put on your iTunes or iPod. There are ... more info

The side girdle is not horizontal but slightly offset. The surface table is wider than the appropriate size. All of them are small gaps that can be ... more info

The side girdle is not horizontal but slightly offset. The center is slightly off. All of them are small gaps that can be magnified and checked with ... more info

This is the type of loose loose gemstone necklace. Here, emphasis is placed on the shape of the rough, and only the sides are cut into octagons. The ... more info

The amethyst comes out in a hexagonal crystal at the time of mining. If it is formed naturally, it is somewhat distorted. It is in the state where ... more info

Because of the inclusion and the stone material was not very good, it is an amethyst with a noticeable roughness. I made it on the assumption that it ... more info

If you make a ring with a large grain, it looks quite large. The center is not well established in the production, and there are gaps in the table ... more info