Prominent Mozambican ruby mining company, Gemrock, has partnered with Bonas Group to host their third ruby tender in Bangkok, from March 24 to 28. The event has already drawn significant international interest, with a significant number of gemstone companies from across the globe set to participate – a response that underscores the strong worldwide demand for premium rubies.
The tender will showcase an extensive assortment of original rough Mozambican rubies, from melee stones ideally suited for watches and fine jewellery, to investment-grade stones exceeding 10 carats.
“There is a particularly strong global demand for high-quality rubies of one carat and above,” says Tim Denning of leading gemstone tender house, Bonas. “Despite challenging market conditions affecting diamonds and, to a lesser extent, emeralds—especially in markets like China—rubies have maintained remarkable resilience. Each mine has its unique geological signature; Gemrock’s rubies are distinct due to their subtle purple undertone, which is a rare and highly valued feature.”
Bonas’ structured and transparent tender process ensures clarity and confidence among international gemstone buyers.
Market Outlook: Rubies as a Resilient Investment
The timing of this tender is notable, as rubies have gained significant recognition as stable and attractive investments in comparison to other gemstone categories facing market uncertainty. Events like this tender also contribute positively to Bangkok’s local gem industry, supporting the expertise and livelihoods of the Thai gemstone trading community.
Rishabh Tongya, Founder and Chairman of Gemrock, adds, “Mozambique rubies offer a combination of colour, fluorescence, and clarity that sets them apart in the global marketplace. As demand for responsibly sourced, high-quality rubies grows, our focus remains on ensuring a steady supply that meets the evolving needs of global manufacturers,” he adds.
With their deep red hues, fluorescence, and lasting appeal, rubies have remained a symbol of prestige in high jewellery and investment circles. Their growing prominence in the luxury sector reflects a shift in buyer priorities, with collectors and jewellers increasingly favouring gemstones that offer both visual allure and long-term value. The results of Gemrock’s tender will provide insight into evolving market dynamics, influencing not only pricing trends but also the positioning of Mozambican rubies within the broader gemstone industry. Beyond facilitating acquisitions, this event offers a rare glimpse into the changing currents of the global luxury market.
