The Natural Gem follows a clear vision: to build a strong international network around high-quality gemstone investments – based on trust, quality, and long-term value development.

At the core lies a strategic hub concept that connects carefully selected locations across Europe, bringing together exclusive networks, markets, and premium environments.

The headquarters in Vienna serves as the company’s operational and strategic center, from which all international activities are managed and further developed.

With its subsidiary in Zurich, The Natural Gem has established another key location in the heart of Europe, playing an important role in international business relations and access to global markets.

Building on this foundation, The Natural Gem is developing a network of selected hubs, each contributing a specific role within the overall strategy:

• Mallorca – Exclusivity & International Lifestyle Network
  The Mallorca Country Club represents a premium international environment and offers access to an exclusive network. Here, The Natural Gem combines its investment expertise with visibility and premium positioning.
• Frankfurt – Business Hub & International Connectivity
  The partnership with the Frankfurt Airport Club positions The Natural Gem in one of Europe’s leading business centers, focusing on business networks, global exchange, and strategic expansion.
• Salzburg – Partnerships & Regional Synergies
  The collaboration with 50plus GmbH creates targeted synergies within a strong regional environment, focusing on trust, high-quality communities, and sustainable network development.

This combination of locations enables The Natural Gem to position gemstone investments within an international context while building an integrated European network.

“Our goal is to create a strong international network based on quality, trust, and sustainable growth. The combination of selected locations and strategic partnerships is the key to our European expansion,” says Robert Ziegenfelder, Managing Director of The Natural Gem.

The Natural Gem continues to expand its European presence by entering into a strategic partnership with 50plus GmbH in Salzburg. This step further strengthens the company’s network and adds another key element to its European hub strategy.

50plus GmbH specialises in developing and connecting high-quality communities and business networks, with a focus on best agers, entrepreneurs, and decision-makers. With strong regional roots and an established network, the company provides an ideal platform for sustainable collaboration and high-level exchange.

Salzburg, as an established business and cultural location, offers ideal conditions for this cooperation. The partnership creates targeted synergies to unlock shared potential and drive long-term development.

“The partnership with 50plus GmbH is an important step in further expanding our presence in Europe while benefiting from a strong regional network,” says Robert Ziegenfelder, Managing Director of The Natural Gem.

The collaboration opens up new opportunities for exchange, innovation, and sustainable growth. Both partners aim to combine their strengths and create added value for their respective networks and markets.

“Our goal is to build a strong European network based on quality, trust, and long-term development. The partnership in Salzburg is an important part of this strategy and underlines our focus on sustainable expansion,” Ziegenfelder adds.

The Natural Gem is consistently expanding its European hub structure by entering into an exclusive partnership with the Frankfurt Airport Club. This marks the club as the company’s second strategic location in Europe, further enhancing opportunities for international networking and collaboration.

Frankfurt, as one of Europe’s leading business hubs, provides the ideal setting: the Airport Club combines exclusivity with an international network of business leaders, innovators, and decision-makers across various industries.

The Natural Gem is consistently expanding its European hub structure by entering into an exclusive partnership with the Frankfurt Airport Club. This marks the club as the company’s second strategic location in Europe, further enhancing opportunities for international networking and collaboration.

Frankfurt, as one of Europe’s leading business hubs, provides the ideal setting: the Airport Club combines exclusivity with an international network of business leaders, innovators, and decision-makers across various industries.

“We are consistently pursuing our hub concept with selected locations across Europe that enable strategic connections and sustainable growth. The Frankfurt Airport Club is an ideal addition to our network: it brings together people, expertise, and quality – exactly the factors that are crucial for our expansion and international positioning,” Ziegenfelder adds.

With another important step towards internationalisation, The Natural Gem is expanding its European presence: the company is now a Corporate Member of the renowned Mallorca Country Club. The partnership is a key element of its strategic hub concept, with three locations across Europe.

The choice of location is deliberate: the Mallorca Country Club is regarded as one of the island’s most exclusive venues, offering an international environment that perfectly aligns with the values and ambitions of The Natural Gem.

“This partnership marks a significant milestone for us. It not only underlines our international focus, but also provides the opportunity to operate in a high-quality, international environment. Locations like this are essential for our growth,” says Robert Ziegenfeler, Managing Director of The Natural Gem.

With this Corporate Membership, The Natural Gem sets a clear signal: internationalisation, premium networks, and carefully selected locations are at the core of the company’s future development.

The partnership with the Mallorca Country Club strengthens visibility in an international environment and creates new opportunities for collaboration, growth, and sustainable positioning across Europe.

“We are consistently pursuing our hub concept with three key locations in Europe. The Mallorca Country Club is an ideal addition, bringing together people, networks, and quality at the highest level. This perfectly matches our vision. Mallorca offers a unique combination of an international audience, high quality of life, and excellent infrastructure. The club itself stands out with its prime location and an environment that fosters innovation and exchange,” Ziegenfeler adds.

Following the great success of the Gemvestment Germany Tour 2025, The Natural Gem is taking the next logical step: what began as an exclusive event series in Germany grows in 2026 into the Gemvestment Europa Tour – an internationally oriented lecture and information series on gemstones as an investment, visiting selected cities in eight European countries for the first time.

Starting January 2026, The Natural Gem brings in-depth knowledge on gemstone investments, market mechanisms and long-term value strategies directly to audiences in Austria, Germany, Switzerland, Czech Republic, Spain, Hungary, Slovakia and Slovenia.

Why a European Tour?

The demand for well-founded, transparent information on gemstones as a tangible asset is greater than ever. With an expanded concept, new content and an international focus, the 2026 Europa Tour responds to this demand.

The event series is aimed at investors, collectors and all those who wish to understand gemstones not merely as jewellery, but as a strategic store of value – and who place importance on serious, scientifically grounded insights.

Speaker: Dr. Thomas Schröck

The lectures are presented by Dr. Thomas Schröck, founder and CEO of The Natural Gem and one of the most distinguished gemstone experts and gemologists in Europe. With over three decades of experience in the international gemstone trade, he combines scientific expertise with entrepreneurial instinct and a deep passion for untreated, naturally coloured gemstones.

His bestseller “Investing in Gemstones” – first published in 2017 and now available in its 3rd edition – is considered one of the definitive works on gemstone investment. It covers mineralogical and historical aspects as well as the question of what investors should look for when selecting stones, and provides a comprehensive overview of price developments on international markets.

What can participants expect?

The evening events of the Gemvestment Europa Tour offer exclusive insights into the world of gemstone investments: from the fundamentals of tangible asset investing and the characteristics of untreated, naturally coloured gemstones through to current market data and price trends.

Alongside the expert lecture “Investing in Gemstones”, you can look forward to engaging conversations, personal exchange – and of course the opportunity to examine and even acquire a selection of rare investment-grade gemstones on site.

The Natural Gem is Europe’s leading provider of investments in untreated, naturally coloured gemstones – the knowledge shared in these lectures comes directly from the practice of international trade.

All Gemvestment Europa Tour 2026 Dates

A full overview of all stops can be found in the table below. Confirmed venues are listed with their exact locations; further venues will be announced on an ongoing basis. We recommend securing your place early – attendance is limited.

Datum & Uhrzeit	Stadt	Land	Location	Anmeldung
22.01.2026	Munich	Germany	NH Collection München Bavaria Arnulfstr. 2, 80335 München	closed
10.02.2026	Bregenz	Austria		closed
12.02.2026	Stuttgart	Germany	Mövenpick Hotel Stuttgart Airport Flughafenstraße 50, 70629 Stuttgart	closed
19.02.2026	Zurich	Switzerland	Crowne Plaza Zürich Badenerstrasse 420, 8004 Zürich	closed
24.02.2026	Salzburg	Austria	Hotel Hubertushof Alpenstraße 110, 5081 Anif bei Salzburg	closed
10.03.2026	Graz	Austria		TBA
12.03.2026 · 19:00 Uhr	Frankfurt	Germany	Holiday Inn Frankfurt – Alte Oper Mainzer Landstraße 27, 60329 Frankfurt a. M.	Register
26.03.2026 · 19:00 Uhr	Basel	Switzerland	Holiday Inn Express & Suites Basel Hegenheimermattweg 179, 4124 Basel-Allschwil	Register
09.04.2026 · 19:00 Uhr	Prague	Czech Republic	Holiday Inn Prague Na Pankraci 15/1684, 1400 Prague	Register
23.04.2026 · 19:00 Uhr	Mallorca	Spain	Iberostar Selection Playa de Palma Carrer de Marbella 36, 07610 Palma, Illes Balears	Register
06.05.2026	Cologne	Germany	TBA	demnächst
07.05.2026	Düsseldorf	Germany	TBA	demnächst
12.05.2026	Linz	Austria	TBA	demnächst
21.05.2026	Lugano	Switzerland	TBA	demnächst
09.06.2026	Budapest	Hungary	TBA	demnächst
11.06.2026	Hannover	Germany	TBA	demnächst
17.06.2026	Klagenfurt	Austria	TBA	demnächst
24.09.2026	Leipzig	Germany	TBA	demnächst
29.09.2026	Innsbruck	Austria	TBA	demnächst
01.10.2026	Bratislava	Slovakia	TBA	demnächst
08.10.2026	Berlin	Germany	TBA	demnächst
22.10.2026	Ljubljana	Slovenia	TBA	demnächst
12.11.2026	Hamburg	Germany	TBA	demnächst

Additional venues and registration links will be added on an ongoing basis. Subscribe to The Natural Gem newsletter to stay up to date on new dates.

Secure Your Spot

Attendance at the Gemvestment Europa Tour evening events is deliberately limited to ensure personal exchange and a high-quality atmosphere. Register early to avoid missing out.