SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : Amazon.com, Inc. (AMZN)
AMZN 220.69+1.6%Nov 21 4:00 PM EST
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: H James Morris who wrote (102047)4/24/2000 5:41:00 PM
From: Glenn D. Rudolph  Read Replies (1) of 164684
 
I. GIA SAYS NEW LASER TREATMENT LEAVES NO SURFACE HOLE
The GIA recently discovered a new laser drilling treatment for diamonds that
avoids drilling a surface hole by using heat to bring cleavage to the surface of
the diamond, allowing acid to penetrate to the dark areas of the stone. "At first
glance, this could resemble natural etching," said one GIA official. Read NJ
Diamond Editor John Gallagher's story at:
national-jeweler.com
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News