Deutschland

Gemstones sold in the CG auction are sold by vetted and trustworthy sellers chosen by Catawiki.
WHO I AM

Achim Strobl
Gemologist by DGemG ( Deutsche Gemmologische Gesellschaft eV, Idar Oberstein )
Specialist in Rough Gemstones, Preforming. Cutting

- The origins are not certified by a laboratory, they are my gemological opinion.
- The photos are taken at more than 10X, with macro lens, so there are inclusions that are not really visible to the naked eye.
- The pictures aren't true to scale, which is why we give you the exact measurements of the stone so that you can get a good idea of the size.
- Colours may look different depending on your screen settings.

-Shipping by registred and insured mail ( 2 -3 weeks )
-Customs charges paid by the buyer 



Auctions

Gemstone Auction (Certified Gemologists)

Gemstones Auction (Special & Collector)

Brazil - Emerald - Certified Gemologist, No Certification

No Reserve,  yellow Scapolite - 6.17 ct

Baguette - Certified Gemologist, No Certification

blue (greenish) Tourmaline - 2.63 ct

Fantasy - Certified Gemologist, No laboratory report

No Reserve, yellow Citrine - 38.95 ct

Brazil - Oval - No Certification, Certified Gemologist

No Reserve, dark red Tourmaline - 3.39 ct

Rectangular - No Certification

light blue (greenish) Aquamarine - 7.89 ct

Pear - Certified Gemologist, No Certification

No Reserve,  light  pink Morganite - 6.75 ct

Russia - Marquise - Certified Gemologist, No Certification

2 pcs vivid green, extra fine colour quality Chrome Diopside - 2.65 ct

Round - Certified Gemologist, No laboratory report

3 pcs No Reserve, vivid orangy-yellow Sapphire - 1.12 ct

Brazil - Fantasy - Certified Gemologist

No Reserve, yellow Chrysoberyl - 10.08 ct

High precision cut, Octagonal - Certified Gemologist, No laboratory report

3 pcs No Reserve,  violet, Amethyst - 21.25 ct

No Reserve,  blue, fine colour quality Aquamarine - 4.14 ct

Pear - Certified Gemologist, No laboratory report

No Reserve, yellow Beryl - 9.01 ct

Brazil - Cushion - Certified Gemologist

No Reserve, colourless Goshenite (Beryll) - 5.34 ct

Brazil - Princess, Rectangular - Certified Gemologist, No laboratory report

No Reserve, yellow (greenish) Beryl - 2.67 ct

Square - Certified Gemologist, No laboratory report

No Reserve,   yellow Citrine - 18.04 ct

Oval - Certified Gemologist, No Certification

No Reserve,  intense vivid violet, extra fine colour quality Amethyst - 13.96 ct

Brazil - Briolette - No Certification, Certified Gemologist

2 pcs No Reserve,  yellow,  half-drilled Citrine - 20.32 ct

Brazil - Square - Certified Gemologist

No Reserve, colourless Goshenite - 4.00 ct

Brazil - Square - Certified Gemologist, No Certification

No Reserve,  colourless Quartz with dendritic inclusions - 17.07 ct

No Reserve,  greenish-yellow Citrine - 33.87 ct

Brazil - Oval - Certified Gemologist, No Certification

No Reserve, intense vivid red,extra fine colour quality Tourmaline - 0.65 ct

Brazil - Cabochon, Pear - Certified Gemologist

blue fine colour quality Tourmaline - 6.84 ct

Cabochon, Cushion - Certified Gemologist

multicolour Watermelon Tourmaline - 21.57 ct

Brazil - Fantasy - Certified Gemologist, No laboratory report

No Reserve,  colourless Rock-Crystal (Quartz) with red Hematite - 21.28 ct

Brazil - No indication of treatments

No Reserve Price Green, Pink Tourmaline  - 2.40 ct - Certified Gemologist

Brazil - Fantasy - Certified Gemologist, No Certification

watermelon: green/pink Tourmaline - 5.16 ct

No indication of treatments

Green Tourmaline  - 3.35 ct - Certified Gemologist

Emerald - Certified Gemologist, No Certification

No reserve,  colourless Quartz with metallic shining round pyrite-crystals - 8.88 ct

Cabochon, Rectangular - Certified Gemologist, No Certification

No Reserve,  tri-color:blue/ green/pink Tourmaline - 2.38 ct

Brazil - Pear - Certified Gemologist

vivid  green Fluorite - 27.51 ct

No Reserve,   light orangy pink Morganite - 2.81 ct

Oval - Certified Gemologist, No laboratory report

 dark blue/yellow Sapphire - 1.83 ct

Brazil - Baguette - Certified Gemologist, No Certification

vivid green (yellowish),   fine colour quality Tourmaline - 4.38 ct

Marquise - Certified Gemologist, No Certification

20 pcs No Reserve,  blue Sapphire - 2.41 ct

Brazil - Octagonal - Certified Gemologist, No Certification

vivid green (yellowish),   fine colour quality Tourmaline - 2.36 ct

Round - Certified Gemologist, No Certification

15 pcs No Reserve, greenish yellow, yellow Beryl - 4.30 ct

Brazil - Cushion - Certified Gemologist, No laboratory report

 light blue Topaz - 40.36 ct

Oval - No Certification

orangy red Garnet - 6.41 ct

No Reserve,  light blue Aquamarine - 2.20 ct

Brazil - Octagonal - Certified Gemologist

light violetish blue / light pink Tourmaline - 1.87 ct

Rectangular - Certified Gemologist, No laboratory report

No Reserve, greenish-yellowish-grey Tourmaline - 1.89 ct

Briolette - Certified Gemologist, No Certification

light  bluish-green Aquamarine - 20.36 ct

Fantasy - No Certification

yellowish-green Beryl (Heliodore) - 8.23 ct

No Reserve, orangy yellow Citrine - 19.25 ct

No Reserve, Quartz with golden Rutile-Needles - 11.42 ct

Brazil - Marquise - Certified Gemologist, No Certification

No Reserve, light yellow Beryl - 2.65 ct

Round - No Certification

9 pcs No Reserve,  orangy /brown/green Andalusite - 2.80 ct

Pear - Certified Gemologist

No Reserve,  black dendrites Dendritic Quartz - 14.05 ct

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