9.9 • 25 Ratings
🗓️ 30 January 2019
⏱️ 56 minutes
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0:00.0 | Welcome to the jewelry district, a podcast by J.C.K. Magazine and J.C. |
0:08.3 | Online. Today, J.C.K.'s Rob Bates and Emily Vesseland will talk about the hot news in the industry, |
0:14.2 | a weird jewelry story of the week, and Rob will interview Diamond analyst Paul Zemnitsky about lab-grown diamonds and the future |
0:22.5 | of the diamond industry. But first, we'll start with something from the archives of JCPK magazine |
0:28.3 | that's over 140 years old. |
0:34.2 | All right, so in honor of JCPK's 150th anniversary, we're going through our voluminous archives here. |
0:43.5 | And managing editor Melissa Rose Bernardo says she's found something really cool from the archives. |
0:50.8 | All right. Thanks, Rob. So this is from the February 1878 issue. I remember that one. Yeah. |
0:57.9 | Yes. We all do, don't we? Of the Jewelor's Circular and Orological Review, that's what JCPay was called back then. And this is from the Foreign Notes section. So this is a little technical, but I think the chemistry buffs out |
1:13.6 | there will find it interesting. The artificial production of rubies and sapphires in France is regarded |
1:19.5 | as highly successful. 1878, remember. The process consists chiefly of heating to redness for 20 days, a mixture of plumbic |
1:30.8 | aluminum with silica. |
1:33.4 | The illuminate crystallizes out in the form of quorum. |
1:38.3 | Does this sound familiar at all? |
1:40.9 | A real compelling writing there. |
1:42.2 | Yeah, no, it's a... |
1:42.8 | Right? |
1:46.0 | Sounds interesting. Yeah, I don't really understand all that stuff, so... |
1:49.0 | The addition of potassium bichromat turns the corundum to ruby, the addition of cobalt oxide turns the |
1:56.0 | corundum to sapphire. |
1:58.0 | The artificial gems meet every test which can be applied to the natural ones. |
2:03.3 | Okay, now this is actually the super interesting part. The recent reduction of oxygen, nitrogen, |
... |
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