gemlab.co.uk
gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology.gemstones, diamonds Gold Jewellery and wedding rings from the UK at low prices.
http://gemlab.co.uk/
gemstones, diamonds Gold Jewellery and wedding rings from the UK at low prices.
http://gemlab.co.uk/
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gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology. | gemlab.co.uk Reviews
https://gemlab.co.uk
gemstones, diamonds Gold Jewellery and wedding rings from the UK at low prices.
gemlab.co.uk
gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology.
http://www.gemlab.co.uk/Spectroscopy.html
Gemmological Research and Education. THE SPECTRO - MICROSCOPE and the CAMERA. The spectra I have photographed using a tungsten fibre optic lamp. The images were captured through a small diffraction type spectroscope attached to a digital camera and coupled to the body tube of a monocular microscope. Neodymium, erbium and thulium ). Pixel related formula by computer to compile a comparison scale.
gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology.
http://www.gemlab.co.uk/About%20the%20Author.html
Gemmological Research and Education. The R Keith Mitchell Award for Excellence in. Gem - A Conference London October 2009. John and Kathleen Harris. Life's full of surprises - nobody tells me anything! Engraving website ; -.
gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology.
http://www.gemlab.co.uk/News.html
Gemmological Research and Education. Latest up - date August 2016. Recent additions, amendments and future plans . A GUIDE TO THE SPECTROSCOPE -. After several years and various trial versions I have finally launched my CD A Guide to the spectroscope. This is an animated Microsoft PowerPoint Slide Show which can be controlled by the viewer which enables back tracking to repeat the sequence of the animated images for a more concentrated view. For further details go to; -. A GUIDE TO THE SPECTROSCOPE.
gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology.
http://www.gemlab.co.uk/Spectra%20Database.html
Gemmological Research and Education. RD4 Slightly purplish red. PK2 Pink and orangy pink. PK3 Brownish and purplish pink. GN2 Yellowish and greyish green. GN4 Dark and brownish green. BL3 Lavender and indigo blue. VT - PL Violet and Purple. Periodically other gemstones will be added to these files. This database is mainly for use by students studying gemmology in the courses offered by the Gemmological Association of Great Britain and the National Association of Goldsmiths. The majority of the gemstone s...
gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology.
http://www.gemlab.co.uk/Colour%20Filters.html
Gemmological Research and Education. The use of colour filters in gem testing can be a simple and quick method to give an indication of possible identity or to eliminate any possibilities according to the reaction of the gemstone to a particular filter. Colour filters do not provide an immediate identification, only information which can help towards identification. Observations must be practiced over many samples and the results interpreted with care until a proficient method has been mastered. This exp...
TOTAL PAGES IN THIS WEBSITE
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What's New
http://www.gemstonemagnetism.com/what_is_new.html
An Effective Tool and Method for Gem Identification. How to Use a Magnet for Gem Identification. A photo of a pink Malaya Garnet. That fluoresces pink under long wave UV light due to chromium was added to the Malaya Garnet. Section on page 3. Information and photos of a pink Pastel Pyrope Garnet. That fluoresces red under long wave UV light due to chromium was added to the Pastel Pyrope. Section on page 4. Photos and a new section titled Lecuo Garnet. Were added to page 5. Green and colorless) was added.
Overview of Magnetism in Gemstones
http://www.gemstonemagnetism.com/overview_p_5-__the_spectroscope_and_magnetism.html
Overview pg 2- Diamagnetic (Non-magnetic) Gems. Overview pg 3- Factors that Affect Magnetism. Overview pg 4- The Magnetic Metals that Color Gems. Overview pg 5- Spectroscopy in Relation to Magnetism Quantitative Measurements of Magnetism. How To pg 2- Floatation Method and Direct Method. How To pg 3- Factors That Affect Responses Opaque Gems That Pick Up. How To pg 4- Ten Practical Uses for Gem Identification. How To pg 5- Spearating Look-alike Gems. Tourmalines pg 2- Color Varieties. Let's Keep it Simple.
Resources and Links
http://www.gemstonemagnetism.com/resource_links_2.html
Overview pg 2- Diamagnetic (Non-magnetic) Gems. Overview pg 3- Factors that Affect Magnetism. Overview pg 4- The Magnetic Metals that Color Gems. Overview pg 5- Spectroscopy in Relation to Magnetism Quantitative Measurements of Magnetism. How To pg 2- Floatation Method and Direct Method. How To pg 3- Factors That Affect Responses Opaque Gems That Pick Up. How To pg 4- Ten Practical Uses for Gem Identification. How To pg 5- Spearating Look-alike Gems. Tourmalines pg 2- Color Varieties. Hanneman, W.W&#...
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Gem Lab Appraisal Services
GemLab The Real Certified Precious Natural Gemstones Ruby, Blue Sapphire, Yellow Sapphire, Pearl, Red Coral, Emerald, Hessonite , Cat's Eye, Diamond
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GemLab: Jewellery Valuation & Protection, Diamond Quality Rating – New Zealand’s leading gemologists and valuers
How we can help. How we can help. New Zealand’s Independent Jewellery Valuers. GemLab are New Zealand’s leading independent jewellery valuer. Our six internationally qualified gemmologists and diamond graders value all types of gems, jewellery and watches. GemLab valuation reports are tailored to your needs, your budget, and your time frame. While-U-Wait, Same-day, and In-home service options. Our insurance valuations are accepted by all insurers. How we can help navigateright. Reports to Help Sell.
gemlab.co.uk at J K Harris for professional gemmologists and students of gemmology.
An update on the latest additions or alterations to this site . How the images were captured on camera. Images and Descriptions of Absorption and Emission Spectra . The application of colour filters in gem testing . John S. Harris Engraver and Gemmologist. A GUIDE TO THE SPECTROSCOPE. A Gemlab UK Production for Education in Gemmological Spectroscopy. This CD contains an animated Microsoft PowerPoint Slide Show which can be controlled by the viewer. Optical Spectroscopy Software by Dr. F. Menges.
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About The Gem Lab. We have moved to 8 Penrith Road, Kenilworth. Cell No: 082 653 4567 (use this number during power failures). DONE WHILE YOU WAIT by an Accredited Senior Gemmologist (AGA). If you are wanting to sell your jewellery or gemstones get them valued so that you are in control of the price you should get. All valuations are performed by Jeremy Rothon FGA. To schedule an appointment, kindly fill out the form below or call me on 021 761 1746. 2015 Fees affective from the 1st March 2015. We will q...
Diamond Appraisal NYC | Gemological Appraisal Laboratory of America, Inc. | Diamond/Jewelry Appraisal & Laboratory Certificates for Insurance, Trade, Estate and Tax Purposes
What Makes GemLab Different? New York City, NY. Garden City, LI. Gemological Appraisal Laboratory of America, Inc. When you need to get it right. The true measure of an appraisal whether a gem, jewelry, or a watch is a combination of sophisticated laboratory technology, and expertise in interpreting the test results. Who Comes to Gemlab? Prospective grooms or brides come to GemLab for the confidence of knowing they're getting what they're paying for, or for insurance purposes. When you want the highest l...
Gemlab Philippines | Jewelry and Gemology Training Center
Gemology on Diamond Grading. Gemology on Colored Stones and Gem Identification. Gemlab currently offers the following courses:. Basic: Jewelry Appraising and Pawnshop Operation and Management(includes Gemology 101 Prerequisite on Diamonds and Colored Stones). Basic Gemology on Diamond Education (Diamonds, 4C’s, Imitations, Treatments) and Appraisal. Advance: 2 courses in Gemology (Diamond Grading and Colored Stones and Gem Identification). GEMLAB is the only school which has a laboratory equipped with ge...
