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physical object


synthetic gem


natural gem


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gem synthesis




gemstone colorimetry
















crystal growth




synthetic crystal




diamond single crystal




single crystal growth




industrial mineral




Gem Experts

The following experts are available as gem consultants and gem expert witnesses.  ORC experts are peer-recommended authorities who have been carefully selected and rigorously screened.
    Definition:  Gem - A physical object suitable for jewelry and/or other ornamental purposes consisting of a rock, mineral, or other natural or synthetic material valued for its quality, beauty, durability, and/or scarcity.

Synonyms:  gemstone

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Join our distinguished experts for gem jobs, projects and consulting opportunities.

1 to 18
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Gem Experts
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Expert in Valuation Testing Identification Analysis of Diamonds, Gemstones Jewellery & Silver Watches
2009-2013 Expert has recently successfully completed a PhD research project funded by The University of St Andrews and The Diamond Light source the UK's national synchrotron facility. The research involved the development of new spectroscopic ... See full profile

United Kingdom

Expert in Crystal Growth, Gem Synthesis, Gem Treatments, Causes of Color, etc.
Expert is an expert in the production and properties of man-made synthetic crystals for gemstone use, including ruby, emerald, diamond, cubic zirconia, and quartz. He has written a book and about 80 articles in this field. Expert has expertise in ... See full profile

New Jersey (NJ), USA

Expert in Exploration, Mining and Processing of Diamonds, Industrial Minerals and High Purity Quartz
Expert has worked for multinational industrial mineral companies, doing research on mineralogy, processing of minerals, and evaluation of industrial mineral deposits. He had a special focus on high purity quartz & cristobalite resulting in several quartz ... See full profile


Expert in Surface Modification Engineering
Expert has expertise in surface modification engineering, including ion implantation, physical vapor deposition, thin films, and diamond and diamond-like carbon coatings. He has conducted extensive research in surface ... See full profile

Pennsylvania (PA), USA

Expert in Physics, Optics, and Lasers
As a disciple of Richard Feynman, mathematical methods have always been central to Expert's work. He prefers analytical approaches when feasible, resorting to numerical methods when necessary. He believes that approximations ... See full profile

California (CA), USA

Expert in Life Support and Low Temperature Plasma
Expert has expertise in life support systems for humans in space. He has extensive experience in physico-chemical approaches to recycling water and oxygen in space, oxygen storage, and processing solid wastes. See full profile

California (CA), USA

Expert in Forensic Science, Forensic Medicine, Forensic Geology. Soil Analysis, Crime Scene Investigation
Within the area of forensic chemistry, Expert is well-versed in the use of microchemistry for the identification of trace evidence and unknown materials, particularly inorganics. This discipline is particularly useful in examining geologically-based ... See full profile

Virginia (VA), USA

Expert in Intelligence Research Analysis
Policy Legislation formation. Research and Development. General political Advisor. Intelligence analysis, Forensics Intelligence. Computational Forensics. Data Mining. Lecturer. ( Mineral Forensics). Special operations. Risk Management and Enhanced Due ... See full profile

Uccle, Belgium

Expert in Soda-Lime Glass Manufacturing
Soda-lime glass manufacturing; glass container. Mr. C. Expert has expertise in many aspects of the commercial container and tableware manufacturing of soda lime glass. His 27 year technical management career and six years as an ... See full profile

California (CA), USA

Expert in Grinding Processes and Technology, Power Tool Accessories Testing and Manufacture
52100 steel is the primary material used for standard bearings and automotive products that act as raceway materials. It is also common to use the material for bearing balls. The expert has extensive experience grinding the hardened form of this material ... See full profile

Texas (TX), USA

Expert in Biomedical Metals Technology
Product development cycle time. Expert has focused a significant portion of his career on product development manipulation. This has involved reducing the cycle time from concept to product introduction. See full profile

North Carolina (NC), USA

Expert in Precision Engineering
Expert has spent 37 years in almost every aspect of this field. Precision engineering covers precision machine tool and measuring machine design; and their construction, accuracy evaluation, and operation. Expert has experience with ... See full profile

California (CA), USA

Expert in Hardmetals, Cemented Carbides, and other Wear-Resistant Materials
Expert has more than 45 years of experience manufacturing and working with hardmetals (sintered carbides) and is an acknowledged world authority. He is advanced personal knowledge of hardmetal manufacture - combining a hard refractory compound ... See full profile

Hertfordshire, United Kingdom

Expert in Mining, Ore Processing, and Plant Maintenance
He has extensive experience in the heap leaching of gold, having operated in both arid and extreme cold conditions. Expert has developed techniques for increasing the recovery of gold. Expert is a resourceful metallurgist with 26 years' hands-on ... See full profile

Cornwall, United Kingdom

Expert in Craniofacial Vertebrate Developmental Genetics, Cell and Molecular Biology, miRNAs, Evolution
Expert has training in Cell, Developmental and Molecular Biology. He supervises a research laboratory that performs a range of projects from mechanisms of craniofacial developmental abnormalities, the role of miRNAs in cranial vertebrate ... See full profile

Massachusetts (MA), USA

Expert in Agricultural Engineering, Food legumes, Field Crops and Organic Field Crops Production
Expert has applied his agricultural engineering background to crop production. He has 5 lentils and 5 chickpea cultivars. He has selected experience in all elements of agricultural production, agricultural crop, agriculture, agronomy, organic field ... See full profile


Expert in Mineral Flotation, Mineral Processing, Training, Tails Thickening, Mining Water Treatment
Mining segments Iron ore (10 years as research metallurgist and Research Coordinator, Flotation with Cleveland Cliffs Iron Company). Uranium (1 years as an operating engineer at a uranium solution mining semi works mine) Potash, industrial ... See full profile

Oregon (OR), USA

Expert in Medical Pharmacology, Toxicology, Consulting Expert Witness
Expert is a medical-legal consultant who specializes in cases that relate to drugs and drug pharmacology/toxicology. He has over 20 years of experience. Expert has experience in civil, criminal & administrative cases--both plaintiff and defense. Dr. See full profile

Georgia (GA), USA


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