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41.
Oiled Gems Lab Alert • Lotus Gemology
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(Articles)
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... decide what is and is not acceptable in terms of treatments. Certainly there is a place in the market for natural, treated, synthetic and imitation stones. That said, we have had a string of clients who, ...
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Created on March 09, 2015
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42.
Lecture | Ruby Inclusions | Hong Kong | 18 September 2014
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(Lectures)
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... the world are revealed. Also discussed are ruby treatments and how to identify them.
When 18 September 2014; 10:00–11:00 AM
Where Gübelin Gem Lab Conference Hong Kong Gem and Jewellery Show Room ...
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Created on September 18, 2014
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43.
Lotus Gemology Price List
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(Uncategorised)
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Lotus Gemology produces what we feel are the finest gem testing reports in the gemological field. Each report includes gemstone identification, treatment identification and, in certain cases (mainly ruby, ...
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Created on July 04, 2014
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44.
Testing Yellow Sapphire | Passport to Obscurity
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(Articles)
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... piece of jewelry.
In gems of this type, inclusions are often sufficient to immediately identify the host as a natural sapphire, as well as prove or disprove heat treatment. When present, a 3160 infrared ...
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Created on May 31, 2014
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45.
Ruby, Pink Sapphire & Padparadscha | Walking the Line
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(Articles)
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... when compared with treated stones of similar quality.
A fraudulent treatment sometimes seen is where a pink sapphire is irradiated to give it a padparadscha color. The resulting color is unstable and ...
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Created on May 01, 2014
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46.
FTIR in Gem Testing | FTIR Intrigue
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(Articles)
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...
Such treatment is typically unmasked by reference to FTIR spectra. When we first checked the FTIR spectrum via the DRIFTS method, large polymer peaks were found. A recheck with the beam condenser method ...
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Created on April 25, 2014
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47.
Lenny Cram's Opal Mine | Fun Down Unde
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(Articles)
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... industry. So they should begin to behave like it.
When a company develops an industry-crippling treatment such as the Pegasus (HPHT) diamond, that company has a responsibility to assist in its identification ...
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Created on April 20, 2014
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48.
Beryllium Diffusion in Orange Sapphire | The Skin Game
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(Articles)
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... Skin Game
March 2002 – In October 2001, Australian gemologist Terry Coldham informed the author of a new treatment for orange sapphire. His initial report was that a burner in Chanthaburi, Thailand had ...
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Created on April 19, 2014
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49.
Jade in Upper Burma | Heaven and Hell
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(Articles)
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... treatment applied. The efficacy of this bug protection was made crystal clear in Mogaung, where Hughes and French gem dealer, Olivier Galibert slept side-by-side in the same bed. Come morning, Galibert' ...
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Created on April 17, 2014
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50.
Burma’s Jade Mines | Tracing the Green Line
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(Articles)
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... the skin by pinching it with a coin. The Maw-sisa miner at left is prepared for any kind of flying pest, as was Richard Hughes after he had the treatment applied. The efficacy of this bug protection was ...
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Created on April 14, 2014
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51.
Reports and Pricing
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Created on October 18, 2022
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52.
Home | Lotus Gemology
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Created on September 30, 2022
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53.
burmese ruby heat treatment
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(Tags)
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burmese ruby heat treatment
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Created on March 31, 2024
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54.
low-temperature ruby heat treatment
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(Tags)
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low-temperature ruby heat treatment
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Created on March 31, 2024
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55.
gem treatments
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(Tags)
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gem treatments
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Created on March 27, 2024
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56.
gem treatment disclosure
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(Tags)
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gem treatment disclosure
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Created on March 27, 2024
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57.
jade treatments
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(Tags)
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jade treatments
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Created on January 27, 2022
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58.
emerald treatments
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(Tags)
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emerald treatments
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Created on May 22, 2020
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59.
oil treatment
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(Tags)
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oil treatment
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Created on March 09, 2015
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60.
heat treatment
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(Tags)
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heat treatment
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Created on April 17, 2014
