The cover of Gem Spectrum print magazine: Issue #7 Winter 2026.

Cover photo

HAPPINESS · ELEVATED: From the East to SoHo, Yuehao Jewelry reimagines happiness in gold. In collaboration with leading international creatives, the brand ascends to a new aesthetic frontier—where culture, craftsmanship, and contemporary beauty converge. On her: a feather-inlaid gold necklace and the Zenwood bracelet—Yuehao’s signature artistry, rendered weightless and luminous. On him: a sculptural black gold necklace in hard pure gold—bold in form, quietly powerful. All photos courtesy of Yuehao Jewelry.

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Contents

Organization

World Diamond Day – There Is No Heritage Without a Date to Remember – Page 1-2

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Exclusive Interview

An Equitable and Sustainable Diamond industry is One Where Responsibility and Opportunity Move Together – an Exclusive Interview with Feriel Zerouki, President of World Diamond Council (WDC)– Page 4-9

Cover Story

Centennial Yuehao Jewelry: Carving Oriental Imprints, Inheriting Millennia of Culture – Page 10-15

Lab & Education

AI @ AIGS – an Exclusive Interview with Kennedy Ho, Chairman of Asian Institute of Gemological Sciences (AIGS) – Page 16-19

Education as a Lever for Upgrading, Competitiveness, and Development in Colombia’s Emerald Sector – Page 20-24

Book Review

Enzo Liverino’s Sciacca Coral – A Journey of Story, Seduction, and Sustainability – Page 26-31

Trade Show

10 Reasons You Should Go to VicenzaOro – Page 32-39

From Debut to Decade: A 10-year Journey of Innovation at T.GOLD+METS Pavilion at the Hong Kong International Jewellery Show (4 – 8 March 2026) – Page 40-41

Oroarezzo 2026, with IEG, Manufacturing Explores New Markets – Page 42-43

Gem Spectrum print magazine: Issue #7 Spring 2026 debuting in the 42nd Hong Kong International Jewellery Show and the 12th Hong Kong International Diamond, Gem & Pearl Show  March 2- 8 2026 by the Hong Kong Trade Development Council (HKTDC). Gem Spectrum magazine is a supporting media of both shows.

Gem Spectrum print magazine: Issue #7 Spring 2026 debuting in the 42nd Hong Kong International Jewellery Show and the 12th Hong Kong International Diamond, Gem & Pearl Show  March 2- 8 2026 by the Hong Kong Trade Development Council (HKTDC). Gem Spectrum magazine is a media partner of both shows.
Gem Spectrum print magazine: Issue #7 Spring 2026 debuting in the 42nd Hong Kong International Jewellery Show and the 12th Hong Kong International Diamond, Gem & Pearl Show  March 2- 8 2026 by the Hong Kong Trade Development Council (HKTDC). Gem Spectrum magazine is a media partner of both shows.
Left: Julius Zheng, Editor-in-Chief of Gem Spectrum, Right: Enzo Liverino, world-renowned coral expert and merchant, president of CIBJO Coral Commission. Photo taken during the 42nd Hong Kong International Jewellery Show (March 2026) by someone kind.
Left: Julius Zheng, Editor-in-Chief of Gem Spectrum, Right: Enzo Liverino, world-renowned coral expert and merchant, president of CIBJO Coral Commission. Photo taken during the 42nd Hong Kong International Jewellery Show (March 2026) by someone kind.

Julius Zheng with his 80th China delegation, 100+ delegates this time.

Jullus Zheng with his 80th China delegation, 100+ delegates this time. China  delegation group photo taken on March 3 at the 12th Hong Kong International Diamond, Gem & Pearl Show.
Julius Zheng with his 80th China delegation, 100+ delegates this time. China delegation group photo taken taken in AWE, Hong Kong, on March 3 at the 12th Hong Kong International Diamond, Gem & Pearl Show.
Julius Zheng with his 80th China delegation, 100+ delegates this time. Another China delegation group photo taken in HKCEC, Hong Kong, on March 4  42nd Hong Kong International Jewellery Show.
Julius Zheng with his 80th China delegation, 100+ delegates this time. Another China delegation group photo taken in HKCEC, Hong Kong, on March 4  42nd Hong Kong International Jewellery Show.

Author

  • Julius Zheng

    1)Founder, Publisher & Editor-in-Chief @ Gem Spectrum print and digital magazine.

    2)China and Asia Expert who has developed many projects to connect the East and the West. Organized 80+ China delegations to America, Europe and Asia. Organized 20+ international gemological courses.

    3)Editor of China Diamond Yearbook by Shanghai Diamond Exchange; Editor of Bangkok Gems & Jewellery print magazine; Correspondent of several important trade magazines.

    4)GIA Graduate Gemologist, AGA Accredited Senior Gemologist, AIGS Graduate

    5) Follow on Instragram; Facebook; LinkedIn.

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