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2. Jewellery - Wikipedia

   en.wikipedia.org/wiki/Jewellery

   Conversely, the jewellery industry in the early 20th century launched a campaign to popularise wedding rings for men, which caught on, as well as engagement rings for men, which did not, go so far as to create a false history and claim that the practice had medieval roots. By the mid-1940s, 85% of weddings in the U.S. featured a double-ring ...

3. Gem and Jewellery Export Promotion Council - Wikipedia

   en.wikipedia.org/wiki/Gem_and_Jewellery_Export...

   Gem Testing Laboratory, Jaipur: This is a coloured gemstone centre in Jaipur. It grades and certifies all kinds of stones, its speciality is in coloured gemstones. Indian Gemological Institute, New Delhi: The Institute is located in New Delhi, IGI serves the gem testing and certification requirements of the industry in North India. [20] [21]

4. Gemological Institute of America - Wikipedia

   en.wikipedia.org/wiki/Gemological_Institute_of...

   Applied Jewelry Professional (AJP) GIA also exists to educate the gem and jewelry industry and the general public through its publications and outreach efforts. Most notable of these efforts is the quarterly publication of the magazine Gems & Gemology, a respected journal in the field. The journal includes full-length feature articles, as well ...

5. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   The Gem and Jewelry Institute of Thailand (Public Organization) or GIT, ... The irradiation process is widely practiced in jewelry industry [45] ...

6. Gemmological Association of Great Britain - Wikipedia

   en.wikipedia.org/wiki/Gemmological_Association...

   Gem-A holds an annual conference, bringing together international speakers and delegates to meet and discuss important changes within the gem industry. [6] It publishes the Gems & Jewellery magazine seven times a year as well as NAG's The Jeweller. [7] [8] [9]

7. World Jewellery Confederation - Wikipedia

   en.wikipedia.org/wiki/World_Jewellery_Confederation

   The World Jewellery Confederation (French: Confédération Internationale de la Bijouterie, Joaillerie, Orfèvrerie des Diamants, Perles et Pierres (CIBJO)), has its headquarters in Bern, Switzerland. [1] It represents the interests of all involved in jewellery, gemstones, and precious metals, from mine to marketplace.