![](http://www.alamy.com/thumbs/6/B2855B76-34EB-4786-BA95-8B9493A33ABF/2JFXNGR.jpg)
Female hand use tweezer for calicrate the specific gravity precious stone for separate the type of stone with the Hydrostatic Weighing Balance.
Size: 5868px × 3427px
Location: Bangkok , Thailand
Photo credit: © Phongsaya Limpakhom / Alamy / Afripics
License: Royalty Free
Model Released: No
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