General Info
Stefan Tittel, the visionary founder of Quantumrock, specializes in gemstones as a prime investment avenue. He has successfully led and scaled four FinTech initiatives resulting in strategic exits totaling over USD 200 million. Quantumrock focuses on delivering sophisticated, well-structured investment options, particularly in commodity-based strategies like Crude Oil, Energy, Agriculture, and Precious Metals. Stefan Tittel introduces gemstones as a professional asset class and offers asset-backed investment certificates in this niche market. Quantumrock’s previous investment includes launching the Rough Gemstone I certificate, aiming to yield returns in less than two years for qualified investors.
Location:
Country: Germany
Industries:
Investment Regions: EU
Investment Stages: pre-seed, seed
angel-individual
EU
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🤖 AI Activity Report
Status: very-active
AI Reasoning: Found multiple public mentions of Stefan Tittel and Quantumrock’s Rough Gemstone product launches. Rough Gemstone I launched in October 2023. Subsequent related activity includes Rough Gemstone II announcements in 2024 (e.g., December 3, 2024 and June 14, 2024) and Rough Gemstone III Launch on June 12, 2025. The most recent known investment-related launch (Rough Gemstone III) occurred June 12, 2025, which is less than 6 months prior to the evaluation date, indicating very recent activity. The startup/product invested: Rough Gemstone III (and Rough Gemstone I/II).
Angel activity thresholds:
Low Activity – Only known angel investments more than 12 months ago.
Active – Known angel investments between the last 12 and 6 months.
Very Active – Known angel investments in the last 6 months.
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