Belmont Emeralds is preparing to make history with its largest emerald auction to date. From November 17–23, 2026, the renowned Brazilian emerald producer will return to Bangkok, Thailand, presenting an exceptional collection of over 340 kilograms of natural Brazilian rough emeralds.
Organized in partnership with Bonas Group, one of the world’s leading gemstone tender and auction specialists, this landmark event represents another significant milestone in Belmont’s international expansion.
The November tender will offer gemstone buyers, manufacturers, and jewelry industry professionals an opportunity to acquire emeralds directly from one of Brazil’s most established producers.
Over Four Decades of Excellence in Emerald Mining
Founded in 1978, Belmont Emeralds has built an international reputation for producing high-quality Brazilian emeralds with exceptional color, clarity, and traceable origins.
Located in Itabira, Minas Gerais, Brazil, the Belmont mine combines decades of geological expertise with advanced mining and gemstone processing technologies.
The company’s commitment to responsible mining, environmental preservation, and innovation has positioned it among the industry’s recognized leaders.
In 2025, Belmont achieved record production volumes, offering more than 500 kilograms of emeralds through its Bangkok auctions.
The upcoming November 2026 event, featuring over 340 kilograms in a single tender, represents another major step forward. Belmont Emeralds
Why Bangkok? A Strategic Hub for the Global Emerald Market
Bangkok has established itself as an important international center for colored gemstones, connecting producers with buyers, cutters, manufacturers, and jewelry brands.
Belmont’s partnership with Bonas Group provides access to an established international tender platform designed to promote transparency, competitive bidding, and efficient gemstone transactions.
Through this collaboration, Belmont continues strengthening its relationships with global buyers while expanding the international presence of premium Brazilian emeralds.
The tender format allows qualified buyers to examine the available rough emeralds before submitting confidential bids. Bonas Group
Sustainability, Innovation, and Traceability
Beyond production volumes, Belmont’s competitive advantage lies in its commitment to responsibly mined, fully traceable Brazilian emeralds.
The company has invested in advanced optical sorting technology, environmental rehabilitation, renewable energy, and community development initiatives.
Its operations include a 1.5 MW solar power facility, demonstrating how technological innovation and environmental responsibility can coexist within the gemstone industry.
As international jewelry brands increasingly prioritize transparency and responsible sourcing, Belmont continues demonstrating the value of a reliable mine-to-market supply chain. JewelleryNet
Event Details: Belmont Emeralds November 2026 Tender
Event: Belmont Biannual Rough Emerald Tender
Dates: November 17–23, 2026
Location: Bangkok, Thailand
Available Material: Over 340 kg of Brazilian rough emeralds
Organizer: Belmont Emeralds
Auction Partner: Bonas Group
Viewing Hours: 9:00 AM–6:00 PM (Bangkok time)
Tender Closing: November 23, 2026, at 3:00 PM (Bangkok time)
The dates, viewing hours, and closing time are confirmed on the official Bonas Group event calendar. Bonas Group
Discover the Next Chapter of Brazilian Emerald Excellence
The November 2026 tender promises to be a defining event in Belmont Emeralds’ history, bringing together exceptional Brazilian gemstones, responsible mining practices, and international market expertise.
Interested in participating?
Visit the Bonas Group Upcoming Events Calendar for tender information and buyer registration details.
Explore Belmont Emeralds to discover the company’s mining operations, sustainability initiatives, and premium Brazilian emeralds.