Abstract of Papers Presented at Annual Meeting of the Gemmological Society of Japan

Abstract of Papers Presented at Annual Meeting of the Gemmological Society of Japan

Published by The Gemmological Society of Japan

463 registered articles
(updated on September 12, 2026)

CONFERENCE PROCEEDINGS FREE ACCESS

2026 Annual Meeting

About Shaping the Pearl Layer Yu Hasegawa, Sayaka Tazawa, Toru Yamamoto, Junko Yazaki
Characteristics of Irradiated Colorless HPHT Laboratory-Grown Melee Diamonds Shoko Odake
Crystal growth of Ni doped blue color spinel (MgAl₂O₄) Toru Katsumata, Hitoha Shimizu, Ayaka Kojima, Nanaka Suguro, Mahiro Honda
A study on pearl deterioration and its causes Kohei Takaishi, Sayaka Tazawa, Junko Yazaki

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Most viewed articles (August 2026)

1

Mechanism of the deterioration phenomenon in pearls.

Released on J-STAGE: June 30, 2017 | 2017 Annual Meeting Pages 26

* Sayaka Nanjo, Junko Yazaki, Yasunori Matsuda, Hiroshi Komatsu
2

Jade

Released on J-STAGE: May 06, 2004 | 2003 Annual Meeting S1

* Satoshi Matsubara
3

Identification of so-called “Pink Jade” from Itoigawa, Niigata prefecture, Japan

Released on J-STAGE: July 08, 2022 | 2022 Annual Meeting Pages 13

* Ayano Nakajima, Masaki Furuya
4

“Japanese” Trapiche garnet: Gemology and Mineralogy of alluvial garnet from Mt. Nijyo, Nara

Released on J-STAGE: July 07, 2025 | 2025 Annual Meeting Pages 4

* Makoto Miura, Jie Ren
5

The health benefits and earth history hidden in Kuji amber

Released on J-STAGE: July 07, 2025 | 2025 Annual Meeting Pages 1-2

* Ken-ichi Kimura

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