It is with great sadness I'd like to announce Dr. Hanneman passed away on December 12, 2020. His legacy will live on forever!
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 Post subject: Re: Scrap gems to diamonds.
PostPosted: Thu Jul 02, 2020 11:55 pm 
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I don't recall ever seeing a parcel of Zircons that were not "paper worn" to some degree. One of the main reasons I always avoided using them in jewelry.

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 Post subject: Re: Scrap gems to diamonds.
PostPosted: Fri Jul 03, 2020 1:04 am 
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Location: San Francisco
Wee Google search.
early 40's w/g blue zircon ring/ Crisp crown facets; abraded pavilion.
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Image

Late 20th century ring: pavilion facets are a mess.
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 Post subject: Re: Scrap gems to diamonds.
PostPosted: Fri Jul 03, 2020 1:21 am 
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Maybe something to do with the angles of the pavillion?

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 Post subject: Re: Scrap gems to diamonds.
PostPosted: Fri Jul 03, 2020 11:10 am 
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No arguing with those photos, and a classic illustration of "doubling".


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