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  • IGS Forums
    Commercial posts related to gems gemological services for sale or gems gemological services wanted IGS assumes no liability for any transactions or communications initiated through this forum Each member has a limit of 5 "for sale" posts per month
  • 如何在 Solidworks 中处理 IGS 文件？ - 知乎
    在Solidworks中处理IGS（Initial Graphics Exchange Specification，初始图形交换规范）文件，通常涉及到导入、编辑和保存等几个步骤。下面是一个基本指南，帮助你在Solidworks中顺利操作IGS文件： 导入IGS文件 1 启动Solidworks：首先，打开Solidworks软件。2
  • 如何在 Solidworks 中打开一个 IGS 文件？ - 知乎
    知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视
  • Seeking Skilled Faceters for Sphene Emerald (Tampa Bay Area)
    Hello IGS Community, I’m looking to connect with professional gem faceters based in the Tampa Bay region who specialize in cutting sphene (titanite) :star2: About the Rough Stones Sphene (titanite) — vibrant, facet-gr hellip;
  • 关三维设计中常用的stp，igs格式他们之间有什么关系？主流的三维软件在格式转换中有什么问题？ - 知乎
    从使用广泛度来说，stp和igs目前的使用广度差不多，igs是即将退出的格式，stp是一直在发展目前的主流通用交换格式。 当然，不管是方案一还是方案二，只要涉及到格式转换，主要的问题都是会存在信息的丢失。 EverCraft co 我们相信。
  • Help me identify. Natural, synthetic or imitation?
    IGS Forums Help me identify Natural, synthetic or imitation? Gem Related Discussion KhazretgaliK32065
  • ID gemstone from Pendant - Gem Related Discussion - IGS Forums
    I bought a pendant with 18kt gold and a 9ct unknown greenish yellow gemstone refractive index is 1 639 -1 649, by rotatin the polarised lens, it doesn’t move On the UV light it goes green and there is a small inclusion i got under the microscope I am between tourmaline and topaz but none of them respond like that under UV light Thanks!
  • Black diamonds or Carbonados? - Gem Related Discussion - IGS Forums
    Hi everyone, I’m new to gemology and trying to learn more about three loose diamonds I came across These were found in a storage unit that belonged to a deceased couple, so unfortunately, I don’t have any information about their origin The diamonds weigh approximately 5, 11, and 14 carats They are opaque, with some having distinctive features and what looks like a very porous texture I
  • Gemstone valuation services - Gem Related Discussion - IGS Forums
    I eventually went straight to a simple Excel and brought IGS price ranges (probably at work) to work with a conglomeration of internet prices related to specific stone varieties I use simple probability P10, P50, and P90 to understand how the markets price stones
  • Good vs Bad cutting - Gem Related Discussion - IGS Forums
    Hello IGS community, Today I have these 2 tourmalines that I received from one of my clients for recutting into artistic-cuts and I wanted to make a quick post showing everyone the magic a good cut makes 2 83ct Green Tourmaline 2 59ct Green Tourmaline As you can see these have been cut maintained very poorly evident by the scuffs, scratches and chipped off facets on the surface of the





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