https://www.gia.edu/event/knowledge-sessions-ethiopian-paraiba-tourmaline 2026-10-05T19:43:26.948Z daily 0.8 https://www.gia.edu/gems-gemology-publication-info-spring-2026 2026-10-16T22:53:36.952Z daily 0.8 https://www.gia.edu/gems-gemology-publication-info-summer-2026 2026-10-17T00:23:57.714Z daily 0.8 https://www.gia.edu/gems-gemology/fa13-book-review-jewellery-drawing-harald-fischer 2026-10-03T13:03:16.920Z daily 0.8 https://www.gia.edu/gems-gemology/fall-2017-gemnews-melee-sized-cvd-synthetic-diamond-pearl 2026-10-03T13:03:20.878Z daily 0.8 https://www.gia.edu/gems-gemology/fall-2022-sapphire-from-china 2026-10-15T20:52:50.530Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2013-abstracts-copper-bearing-minerals-colorado 2026-10-03T13:04:42.424Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2013-abstracts-crocoite-adelaide-mine 2026-10-03T13:04:45.025Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2013-abstracts-gemstones-and-minerals 2026-10-03T13:04:45.455Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2013-bookreview-apatite-the-great-pretender 2026-10-03T13:04:47.932Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2013-bookreview-gemstones-of-peru 2026-10-03T13:04:48.249Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2013-karampelas-cultured-pearls-xenotransplantation 2026-10-05T23:29:49.644Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2015-gemnews-oregon-sunstone-update 2026-10-03T13:05:09.658Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2016-microworld-dolomite-unusual-inclusions 2026-10-03T13:05:12.229Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2017-japanese-jadeite-tables 2026-10-03T13:07:10.938Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2022-gemnews-star-topaz-from-vietnam 2026-10-03T13:05:41.045Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2026-gemnews-tucson-pearl-market-report 2026-10-17T20:59:40.893Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2026-lab-notes-atypical-bead-cultured-pearls-in-necklace 2026-10-17T21:27:36.331Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2026-lab-notes-fashioned-dyed-shell-imitation-pearl 2026-10-17T21:25:03.681Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2026-lab-notes-interpenetrant-twins-in-natural-diamond 2026-10-17T21:15:14.827Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2026-lab-notes-unusual-filled-cultured-pearl 2026-10-17T21:26:58.692Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2026-microworld-bubble-in-spinel 2026-10-17T21:28:16.034Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2026-microworld-evidence-of-heat-treatment-in-spinel 2026-10-17T21:26:10.058Z daily 0.8 https://www.gia.edu/gems-gemology/spring-2026-organic-rich-cores-in-south-sea-keshi-pearls 2026-10-03T23:21:24.447Z daily 0.8 https://www.gia.edu/gems-gemology/su13ab-adventures-in-yakutia-on-the-track-of-the-diamonds 2026-10-03T13:05:41.902Z daily 0.8 https://www.gia.edu/gems-gemology/su13ab-determining-geographical-origins-of-natural-emerald 2026-10-03T13:05:43.581Z daily 0.8 https://www.gia.edu/gems-gemology/su13ab-eosfancy-automatic-bruting-of-fancy-shapes 2026-10-03T13:05:44.217Z daily 0.8 https://www.gia.edu/gems-gemology/su13ab-montana-moss-agate-collectible-chalcedony 2026-10-03T13:05:44.544Z daily 0.8 https://www.gia.edu/gems-gemology/su13ab-the-yellow-color-center-trapped-electrons-in-beryl 2026-10-03T13:05:45.766Z daily 0.8 https://www.gia.edu/gems-gemology/su13ab-wittichenite-from-the-cattle-grid-pit-mount-gunson 2026-10-03T13:05:46.404Z daily 0.8 https://www.gia.edu/gems-gemology/su13br-dictionary-of-gemstones-and-jewelry 2026-10-03T12:48:38.441Z daily 0.8 https://www.gia.edu/gems-gemology/su13br-splendour-and-science-of-pearls 2026-10-03T13:05:46.799Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2013-labnotes-calcium-fluoride-coating-on-fancy-pink-diamonds 2026-10-03T13:05:51.281Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2013-labnotes-strong-color-zoning-reflects-complex-growth-environment 2026-10-03T13:05:55.004Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2013-labnotes-very-large-rough-diamond 2026-10-03T13:05:57.571Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2017-microworld-kyanite-diamond 2026-10-03T13:06:01.414Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2017-microworld-oiled-ruby 2026-10-03T13:06:02.922Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2022-lab-notes-cassis-pearl-florida 2026-10-03T13:06:08.668Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2023-gemnews-metallic-core-pinctada-radiata 2026-10-03T13:06:18.284Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2026-gemnews-aquamarine-in-brazilian-pegmatite-plate 2026-10-16T21:11:23.838Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2026-lab-notes-atypical-color-center-in-diamond 2026-10-16T20:52:23.175Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2026-lab-notes-heat-treated-spinel 2026-10-16T20:47:58.138Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2026-lab-notes-large-bead-cultured-pearl 2026-10-16T20:51:05.801Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2026-lab-notes-reversible-photochromism 2026-10-16T20:54:30.813Z daily 0.8 https://www.gia.edu/gems-gemology/summer-2026-microworld-vesuvianite-in-sapphire 2026-10-16T20:57:31.681Z daily 0.8 https://www.gia.edu/gems-gemology/winter-2018-microworld-quarterly-crystal-bubble-in-fluorite 2026-10-03T02:25:23.851Z daily 0.8 https://www.gia.edu/gems-gemology/winter-2025-gemnews-converge-hands-on 2026-10-03T13:07:07.773Z daily 0.8 https://www.gia.edu/gia-about-mission-governance-esg 2026-10-08T23:23:46.125Z daily 0.8 https://www.gia.edu/gia-news-research/spring-2026-gems-gemology-in-brief 2026-10-08T21:43:13.670Z daily 0.8 https://www.gia.edu/more-is-more 2026-10-03T13:02:20.102Z daily 0.8