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Investment Gemstones

This collection brings together our full range of Investment Gemstones – rubies, sapphires, emeralds, tanzanites, spinels, and alexandrites. Each stone is carefully selected for its certified quality, rarity, and stability.

Recognized as reliable hard assets, these gemstones are valued by discerning investors seeking portfolio diversification, wealth preservation, and long-term security beyond traditional markets.

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Natural Ruby 7.00 ct – Octagon Cut, Untreated, IGI Certified
Natural Ruby 7.00 ct – Octagon Cut, Untreated, IGI CertifiedPrice on request
Natural Red Spinel 4.01 ct – Cushion Cut, Untreated, IGI Certified
Natural Red Spinel 4.01 ct – Cushion Cut, Untreated, IGI CertifiedPrice on request
Natural Red Spinel 6.55 ct – Oval Cut, Untreated, Tanzania
Natural Red Spinel 6.55 ct – Oval Cut, Untreated, TanzaniaPrice on request
Pigeon Blood Mozambique Ruby - 5.06 ct
Pigeon Blood Mozambique Ruby - 5.06 ctPrice on request
Mozambique Ruby - 2.02 ct
Mozambique Ruby - 2.02 ctPrice on request
Mozambique Ruby - 3.09 ct
Mozambique Ruby - 3.09 ctPrice on request
Mozambique Ruby - 3.49 ct
Mozambique Ruby - 3.49 ctPrice on request
Mozambique Ruby - 3.39 ct
Mozambique Ruby - 3.39 ctPrice on request
Tanzanite 61.75 ct – Round Cut, Natural, Lab Certified
Tanzanite 61.75 ct – Round Cut, Natural, Lab CertifiedPrice on request
Tanzanite 80.59 ct – Octagonal Cut, Calibrated, Natural, Lab Certified
Tanzanite 80.59 ct – Octagonal Cut, Calibrated, Natural, Lab CertifiedPrice on request
Tanzanite 87.82 ct – Oval Cut, Natural, Lab Certified
Tanzanite 87.82 ct – Oval Cut, Natural, Lab CertifiedPrice on request
Tanzanite 147.06 ct – Oval Cut, Natural, Lab Certified
Tanzanite 147.06 ct – Oval Cut, Natural, Lab CertifiedPrice on request
Tanzanite 148.66 ct – Round Cut, Natural, Lab Certified
Tanzanite 148.66 ct – Round Cut, Natural, Lab CertifiedPrice on request
Tanzanite 158.41 ct – Pear Cut, Deluxe Quality, Natural, Lab Certified
Tanzanite 158.41 ct – Pear Cut, Deluxe Quality, Natural, Lab CertifiedPrice on request
Tanzanite 166.88 ct – Blue, Cushion Cut, Natural, Lab Certified
Tanzanite 166.88 ct – Blue, Cushion Cut, Natural, Lab CertifiedPrice on request
Tanzanite - 67.60 ct
Tanzanite - 67.60 ctPrice on request
Tanzanite - 85.86 ct
Tanzanite - 85.86 ctPrice on request
Tanzanite - 85.08 ct
Tanzanite - 85.08 ctPrice on request
Tanzanite - 141.50 ct
Tanzanite - 141.50 ctPrice on request
Natural Mozambique Ruby 4.09 ct – Vivid Red “Pigeon Blood”, Oval, Untreated, GRS Certified
Natural Mozambique Ruby 4.09 ct – Vivid Red “Pigeon Blood”, Oval, Untreated, GRS CertifiedPrice on request
Natural Ruby 4.02 ct – Vivid Red "Pigeon’s Blood", Oval, Untreated, GRS Certified
Natural Ruby 4.02 ct – Vivid Red "Pigeon’s Blood", Oval, Untreated, GRS CertifiedPrice on request
Natural Mozambique Ruby 3.06 ct – Vivid Red “Pigeon Blood”, Oval, Untreated, GRS Certified (Kopie)
Natural Mozambique Ruby 3.06 ct – Vivid Red “Pigeon Blood”, Oval, Untreated, GRS Certified (Kopie)Price on request
Mozambique Ruby 4.01 ct - Uhneated, GRS Certrified
Mozambique Ruby 4.01 ct - Uhneated, GRS CertrifiedPrice on request
Mozambique Ruby - 4.09 ct, Untreated, GRS Certified
Mozambique Ruby - 4.09 ct, Untreated, GRS Certified Sale price1.486.604,00 CZK
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Sosna Gems is not a licensed financial advisor. Gemstones are collectibles, not securities. Past performance is not indicative of future results. Legal & risk disclosure .