Colored stones

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  1. Opal 35,50ct

    CHF12,500.00
    Opal 35,50ct
    CHF12,500.00
    Variety Opal
    Cut Cabochon
    Weight 35,50ct
    Size 31,8 x 21,50 x 11,60mm
    Country Ethiopia

     

    All our stones comes with a certificate delivered by a Graduate Gemologist.

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  2. Opal Boulder 27,23ct
    CHF2,390.00
    Variety Opal Boulder
    Cut Cabochon
    Weight 27,23ct
    Size  
    Country Australia

     

    All our stones comes with a certificate delivered by a Graduate Gemologist.

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  3. Opal Boulder 39,14ct
    CHF5,990.00
    Variety Opal Boulder
    Cut Cabochon
    Weight 39,14ct
    Size  
    Country Australia

     

    All our stones comes with a certificate delivered by a Graduate Gemologist.

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  4. Opal Boulder 18,94ct

    CHF22,390.00
    Opal Boulder 18,94ct
    CHF22,390.00
    Variety Opal Boulder
    Cut Cabochon
    Weight 18,94ct
    Size  
    Country Australia

     

    All our stones comes with a certificate delivered by a Graduate Gemologist.

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  5. Opal Boulder 42,54ct
    CHF7,990.00
    Variety Opal Boulder
    Cut Cabochon
    Weight 42,54ct
    Size  
    Country Australia

     

    All our stones comes with a certificate delivered by a Graduate Gemologist.

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  6. Opal Boulder 37,21ct
    CHF5,990.00
    Variety Opal Boulder
    Cut Cabochon
    Weight 37,21ct
    Size  
    Country Australia

     

    All our stones comes with a certificate delivered by a Graduate Gemologist.

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  7. Opal 34,68ct

    CHF29,900.00
    Opal 34,68ct
    CHF29,900.00

    Variety :         Opal

    Cut :               Cabochon

    Weight :          34,68ct

    Size :              37,50 x 20,80 x 9,40mm

    Country :        Ethiopia

    All our stones comes with a certificate delivered by a Graduate Gemologist.

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  8. Opal Boulder 8,83ct

    CHF3,990.00
    Opal Boulder 8,83ct
    CHF3,990.00
    Variety Opal Boulder
    Cut Cabochon
    Weight 8,83ct
    Size  
    Country Australia

     

    All our stones comes with a certificate delivered by a Graduate Gemologist.

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  9. A beautiful pair of amethyst earrings, briolette-cut gold 750

    All our jewelry comes with a certificate delivered by a Graduate Gemologist

     

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  10. A beautiful sapphire eternity ring in white gold 750 with 29 sapphires of 1,90 to 2,00 mm, brilliant cut 1,14ct.

    Our jewelry comes with a certificate made by a Graduate Gemologist.

    This jewel is made in Italy in Vicenza. Our company applies the principles of ethics and transparency.

    Ref AllRivSaphirs

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  11. A beautiful ruby eternity ring in white gold 750 with 29 rubies of 1.90 to 2.00 mm. brilliant cut 1.18ct.

    Our jewelry comes with a certificate made by a Graduate Gemologist.

    This jewel is made in Italy in Vicenza. Our company applies the principles of ethics and transparency.

    Ref AllRivRubis

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  12. A beautiful pair of citrine earrings, briolette-cut and 6 diamonds, brilliant cut 0.07ct H SI gold 750.

    This jewel is made in Switzerland in Lausanne in order to guarantee the best quality. Our company applies the principles of ethics and transparency.

    Ref BOQuartzCitdiams

     

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Marc Chevalier is a gemologist who graduated from the Idar-Oberstein School of Gemology in Germany in 1989.

Passionate about minerals from the age of eight years old, he pursued two years of Geology at the University of Lausanne, and has more than 30 years of experience in the field of sale and purchase of diamonds and precious stones for watchmaking and jewelry.  He has worked in various companies such as Rolex, Golay-Buchel, in the central purchasing of precious stones at the Swatch Group as a Senior Purchaser Gemologist. He has travelled widely and has visited different mines around the world, such as those in Brazil, Kenya and Tanzania to name a few.  He was able to forge a network of relationships around the world which allows him to find exceptional stones in the most beautiful and best qualities of purities and sizes possible.  During one of these trips to Kenya, he decided to set up on his own and to offer his specific knowledge of the different of stones to as many people as possible.