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John Betts - Fine Minerals, a division of ALLMINERALS.COM dealer of Mineral Specimens, Crystals, Gemstones for Rockshops, Rockhounds, Collectors and Mineral Clubs with Articles on Mineral Collecting, Mineral Locations, Mineral Research, Mineral History, Earth Sciences, Geology

 

Uncut Rough Diamonds For Sale - Large Diamond Crystals Over 5 Carats

Below is a gallery of  uncut rough diamonds, natural crystals of genuine diamond from various countries around the world. These are large diamond crystals over 5.00 carats that gemstones are made from - not Herkimer Diamonds that are common quartz. Many different crystal forms are available: Octahedral, Cubic, Macle Twins, Balas crystals. All diamonds are natural crystals, exactly as they occurred naturally in the Earth. No polishing, cutting or alteration of any kind. Most commonly available diamond specimens are from South Africa, Australia, and Democratic Republic of Congo. New diamonds are added frequently, check back often. To purchase mineral specimens, go to the Online order form.
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Diamond (6.45 carat gray irregular crystal) from Sakha (Yakutia) Republic, Siberia, Russia
#61241, Diamond (6.45 carat gray irregular crystal), Sakha (Yakutia) Republic, Russia (t) $7525

Diamond (24.47 carat translucent black crystal cluster) from South Africa
#62151, Diamond (24.47 carat translucent black crystal cluster), South Africa (t) $13500

Diamond (11.13 carat gray octahedral crystal) from Diavik Mine, East Island, Lac de Gras, Northwest Territories, Canada
#60626, Diamond (11.13 carat gray octahedral crystal), Diavik Mine, Canada (t) $4895

Diamond (8.63 carat pale red-brown octahedral crystal). from Mirny, Sakha (Yakutia) Republic, Siberia, Russia
#61245, Diamond (8.63 carat pale red-brown octahedral crystal)., Mirny, Russia (t) $8995

Diamond (10.25 carat yellow-gray irregular crystal) from Northern Cape Province, South Africa
#61249, Diamond (10.25 carat yellow-gray irregular crystal), South Africa (t) $8250

Diamond (6.45 carat gray irregular crystal) from Sakha (Yakutia) Republic, Siberia, Russia
#61244, Diamond (10.35 carat gray irregular crystal), Sakha (Yakutia) Republic, Russia (t) $11975

Diamond (6.31 carat gray cubic crystal) from Mbuji-Mayi (Miba), 300 km east of Tshikapa, Democratic Republic of the Congo (Zaire)
#55858, Diamond (6.31 carat gray cubic crystal), Mbuji-Mayi (Miba), Democratic Republic of the Congo (Zaire) (t) $835

Diamond (26.52 carat gray octahedral crystal) from Russia
#57264, Diamond (26.52 carat gray octahedral crystal), Russia (t) $21800  
The LARGEST octahedral diamond crystal I have ever had!

Diamond (20.07 carat gray complex cubic crystal) from Mbuji-Mayi (Miba), 300 km east of Tshikapa, Democratic Republic of the Congo (Zaire)
#55766, Diamond (20.07 carat gray complex cubic crystal), Mbuji-Mayi (Miba), Democratic Republic of the Congo (Zaire) (t) $2560

Diamond (9.16 carat triangular yellow complex crystal) from Vaal River Mining District, Northern Cape Province, South Africa
#62378, Diamond (9.16 carat triangular yellow complex crystal), Vaal River Mining District, South Africa (t) $9575

Diamond (20.49 carat green octahedral crystal) from Russia
#60663, Diamond (20.49 carat green octahedral crystal), Russia (t) $25000

Diamond (7.32 carat pale red-brown octahedral crystal) from Mirny, Republic of Sakha, Siberia, Russia
#59971, Diamond (7.32 carat pale red-brown octahedral crystal), Mirny, Russia (t) $7650

Diamond (5.71 carat pale-yellow interpenetrant-twinned cubic crystals) from Mbuji-Mayi (Miba), 300 km east of Tshikapa, Democratic Republic of the Congo (Zaire)
#62153, Diamond (5.71 carat pale-yellow interpenetrant-twinned cubic crystals), Mbuji-Mayi (Miba), Democratic Republic of the Congo (Zaire) (t) $4070

Diamond (5.10 carat pale-yellow distorted cubic crystal) from Magna Egoli Mine, Zimmi property along the Sewa River, Sierra Leone
#62155, Diamond (5.10 carat pale-yellow distorted cubic crystal), Magna Egoli Mine, Sierra Leone (t) $3850

 

Check out these other galleries:

Diamonds Priced under $200

Diamond Crystals in unusual crystals and clusters

Diamond Crystals under 1 carat

Diamonds Priced $200 -$399

Diamond Crystals for Natural Diamond Jewelry

Diamond Crystals 1-2 carats

Diamonds Priced $400 - $999 

Gem-Grade Diamonds

Diamond Crystals under 2-5 carats
Diamonds Priced $1000 and above

Sawn slices of zoned diamond crystals

Diamond Crystals over 5 carats

Jewelry designs with natural uncut diamonds

Advice on Cutting Rough Diamonds

Do you think you found a diamond? Learn how to identify diamonds.

 

See our other Gem Galleries

Gem Minerals

Tanzanite

Tourmaline

Diamonds

 

Guided Tour of the Mineral Galleries...

Diamond Crystals under 2-5 carats

Gem-Grade Diamonds


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Visit our other galleries with the links below:
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a division of allminerals.com, dealer of Fine Minerals since 1989.  

The minerals illustrated on this site were purchased from collectors or wholesale suppliers for resale purposes.
The owner of this site did not collect the minerals and collectors should not assume access is permitted to the property
based on inclusion in this site. Please contact the property owner to obtain legal permission before entering private property.