Colored stones
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Tanzanite 11,39ct
CHF10,900.00Tanzanite 11,39ct
CHF10,900.00Variety : Tanzanite
Cut : Pear
Weight : 11,39ct
Size : 15,50 x 12,00 x 9,50mm
Clarity : Loupe Clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Garnet Malaya 4,13ct
CHF450.00Garnet Malaya 4,13ct
CHF450.00Variety : Garnet Malaya
Cut : Emerald
Weight : 4,13ct
Size : 10,70 x 7,40 x 5,00mm
Clarity : Loupe Clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Garnet Malaya 5,47ct
CHF600.00Garnet Malaya 5,47ct
CHF600.00Variety : Garnet Malaya
Cut : Emerald
Weight : 5,47ct
Size : 10,70 x 8,80 x 5,70mm
Clarity : loup clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Garnet Malaya 6,32ct
CHF550.00Garnet Malaya 6,32ct
CHF550.00Variety : Garnet Malaya
Cut : Emerald
Weight : 6,32ct
Size : 10,70 x 9,50 x 6,10mm
Clarity : Loupe Clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Tanzanite 4,64ct
CHF3,500.00Tanzanite 4,64ct
CHF3,500.00Variety : Tanzanite
Cut : Pear
Weight : 4,64ct
Size : 11,60 x 9,00 x 6,30mm
Clarity : Loupe Clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Tanzanite Royal Blue 4,84ct
CHF4,200.00Tanzanite Royal Blue 4,84ct
CHF4,200.00Variety : Tanzanite
Cut : Oval
Weight : 4,84ct
Size : 11,90 x 8,90 x 6,45mm
Clarity : Loupe clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Tanzanite 5,37ct
CHF4,650.00Tanzanite 5,37ct
CHF4,650.00Variety : Tanzanite
Cut : Oval
Weight : 5,37ct
Size : 11,90 x 8,65 x 6,85mm
Clarity : Loupe-Clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Tanzanite 10,68ct
CHF9,600.00Tanzanite 10,68ct
CHF9,600.00Variety : Tanzanite
Cut : Oval
Weight : 10,68ct
Size : 15,45 x 12,30 x 8,10mm
Clarity : Loupe clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Tanzanite 11,90ct
CHF11,250.00Tanzanite 11,90ct
CHF11,250.00Variety : Tanzanite
Cut : Oval
Weight : 11,90ct
Size : 15,15 x 13,20 x 9,50mm
Clarity : Loupe clean
Country : Tanzania
All our stones comes with a certificate delivered by a Graduate Gemologist.
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Amethyst earrings, briolette-cut
CHF590.00Amethyst earrings, briolette-cut
CHF590.00A 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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Sapphire eternity ring 1.14ct.
CHF1,390.00Sapphire eternity ring 1.14ct.
CHF1,390.00A 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
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.
