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  1. Pasig City GEMS is a login portal for city government employees and guests. It is part of the Pasig City website that showcases its vision, services, and programs.

    • Login

      Pasig City envisions itself to be the exemplar of...

    • Pasiggems

      City Government of Pasig. Pasig City envisions itself to be...

  2. Learn about the properties, colors, and sources of hundreds of gemstones, from actinolite to zircon. Browse the alphabetical list of gem profiles and find your favorite gem or discover a new one.

  3. Learn about the properties, sources, and uses of various gemstones from around the world. Browse photos and articles of diamonds, opals, rubies, sapphires, and more.

  4. Explore the science and lore of gemstones from across the globe with GIA's Gem Encyclopedia. Find detailed information, photos, videos and buyer's guides for each precious stone.

  5. en.wikipedia.org › wiki › GemstoneGemstone - Wikipedia

    In modern times gemstones are identified by gemologists, who describe gems and their characteristics using technical terminology specific to the field of gemology. The first characteristic a gemologist uses to identify a gemstone is its chemical composition .

  6. GEMS Enterprise Portal is a platform for TM suppliers to access online tender documents and receive assistance with login issues.

  7. Learn about gemstones, their properties, origins, and value from GIA, the leading authority on gems and jewelry. Explore the latest research, news, and education on gemology and field gemology.

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