{"id":14059,"date":"2018-09-06T13:43:39","date_gmt":"2018-09-06T04:43:39","guid":{"rendered":"https:\/\/fujimori.tokyo\/?p=14059"},"modified":"2025-08-06T17:33:20","modified_gmt":"2025-08-06T08:33:20","slug":"%e5%b1%b1%e6%a2%a8%e3%81%ae%e5%ae%9d%e7%9f%b3%e7%a0%941tp3-te7%a3%a8%e5%b7%a5%e6%88%bf%e3%81%ab%e8%a1%8c%e3%81%a3%e31-tp3t81%a6%e3%81%8d%e3%81%be%e3%81%97%e3%81%9f%e5%be%8c%e71tp3-tb7%a8","status":"publish","type":"post","link":"https:\/\/fujimori.tokyo\/en\/blog\/14059\/","title":{"rendered":"A visit to a gemstone polishing workshop in Yamanashi (Part 2)"},"content":{"rendered":"

Here is a continuation of the tour of a polishing workshop in Yamanashi introduced previously.<\/p>\n

In the previous blog, we showed how the loose pieces are set on the instrument and facets are cut.<\/p>\n

This was also a masterpiece of skillful workmanship! But, it was a great experience,<\/p>\n

In this article, we will introduce hand polishing, in which the surface is finished using only the senses of the hands.<\/p>\n

\"\"<\/p>\n

We start with an amethyst gemstone in this condition.<\/p>\n

The craftsman quickly picked up the gemstone based on his longtime intuition, saying, \"Hmmm, this looks like it would make a beautiful loose stone.<\/p>\n

I had heard that they polish with their bare hands without using any equipment for setting angles, so I was excited to see how it would turn out.<\/p>\n

\"\"<\/p>\n

Roughing is done first on a rotating board.<\/p>\n

We talked and talked and talked...<\/p>\n

\"\"<\/p>\n

In no time at all, you have a rectangular shape!<\/p>\n

This was a surprise to all of us.<\/p>\n

With all due respect, I had assumed that hand polishing = rough cutting,<\/p>\n

I had no idea that the error would be so obvious and square-shaped!<\/p>\n

\"\"<\/p>\n

It was a sight to behold as the work was being completed in no time at all.<\/p>\n

I was just astonished because I had thought that such a cut would be made with a device that could be set straight.<\/p>\n

After this, we change the board to which the loose is applied and the abrasive to a finer one to polish the surface to a shiny finish.<\/p>\n

\"\"<\/p>\n

The facets are polished at the same angle so that they do not run down after they have been cut.<\/p>\n

In fact, we dare to have a craftsman take over the baton and demonstrate this process.<\/p>\n

I heard that it is difficult to polish a loose piece that was not cut by oneself but by someone else because the hands are different, but even so, the craftsmanship of polishing a loose piece to a perfect match by sound and hand feeling was well demonstrated here.<\/p>\n

\"\"<\/p>\n

As you can see, it's shiny! I applaud you!<\/p>\n

I spent a very intense time with a series of eye-opening experiences.<\/p>\n

Thank you all very much!<\/p>","protected":false},"excerpt":{"rendered":"

This is a continuation of our previously introduced tour of a polishing workshop in Yamanashi. In my previous blog entry, I showed you how the facets are cut after the loose pieces are set in the equipment. This time, however, the faceted surface was finished only with the sense of a hand! This time, however, the facets were cut by hand [...].<\/p>","protected":false},"author":4,"featured_media":14056,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[68],"tags":[25,964,913],"class_list":["post-14059","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-loose-gemstones","tag-25","tag-964","tag-913"],"_links":{"self":[{"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/posts\/14059","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/comments?post=14059"}],"version-history":[{"count":0,"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/posts\/14059\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/media\/14056"}],"wp:attachment":[{"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/media?parent=14059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/categories?post=14059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fujimori.tokyo\/en\/wp-json\/wp\/v2\/tags?post=14059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}