1. The purchase of rough diamonds is a specialized field requiring much experience and is definitely not recommended for beginners.
2. Ask for Kimberley Certificate. Today most reputable diamond dealers will not buy rough diamonds without documents.
3. Market factors. One of the great mysteries for beginners is understanding the relationship between price and quality. In a perfect world, price would directly relate to quality, weight, and rarity. But rough diamond trade is far from perfect. Market factors can have as much or even greater impact on prices as does quality. Check current prices.
4. If you are using thermal testers to confirm your identification of rough diamonds, make sure the instruments are working properly. Read the instructions fully and practice using it. Allow stones to acclimatize to the surrounding temperature before testing.
5. There are plenty of diamond imitations in the open market. Frequently encountered diamond simulants include glass, quartz, corundum, topaz, phenakite, spinel, zircon + synthetic cubic zirconia, GGG, YAG, synthetic strontium titanate, synthetic moissanite, and assembled stones.
6. If you are doubtful always consult a reputed gem testing laboratory.
Discover P.J. Joseph's blog, your guide to colored gemstones, diamonds, watches, jewelry, art, design, luxury hotels, food, travel, and more. Based in South Asia, P.J. is a gemstone analyst, writer, and responsible foodie featured on Al Jazeera, BBC, CNN, and CNBC. Disclosure: All images are digitally created for educational and illustrative purposes. Portions of the blog were human-written and refined with AI to support educational goals.
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Wednesday, September 03, 2008
Tuesday, September 02, 2008
Alexandrium
Li Al Silicate (+Nd) + Amorphous (glass) + Light blue to lavender + Hardness = 6.5 + Heat sensitive + perceived as simulants for many light blue colored stones (especially alexandrite).
Antwerp Diamond Conference
The 2008 Antwerp Diamond Conference will be held at the Elisabeth hall on the Koningin Astridplein, adjacent to the diamond district, on November 17 - 19, 2008.
Useful links:
www.antwerpdiamondconference.be
www.awdc.be
Useful links:
www.antwerpdiamondconference.be
www.awdc.be
Charlie Gillett
Charlie Gillett is a British radio presenter + writer + one of the country's most influential proponents of 'world music'. Go to www.charliegillett.com for further information
Random Thoughts
I am, unfortunately, a person who has often said: You put a gun to my head and pull the trigger or take the gun away, I won't move my head.
I admire people who are very successful. But if that success has been achieved through too much ruthlessness, then I may admire that person, but I can't respect him.
- Ratan Tata
www.tata.com
I admire people who are very successful. But if that success has been achieved through too much ruthlessness, then I may admire that person, but I can't respect him.
- Ratan Tata
www.tata.com
We Campaign
Bryan Walsh's article on We Campaign + other viewpoints @ http://www.time.com/time/health/article/0,8599,1837761,00.html was educational and insightful.
Useful links:
www.climateprotect.org
www.wecansolveit.org
Useful links:
www.climateprotect.org
www.wecansolveit.org
Termite = Fuel
Lisa Margonelli's article, Gut Reactions + other viewpoints @ http://www.theatlantic.com/doc/200809/termites was brilliant. A must read.
Useful links:
www.newamerica.net
www.nhm.ac.uk
www.nature.com
www.jgi.doe.gov
www.verenium.com
www.jbei.org
www.arctech.com
Useful links:
www.newamerica.net
www.nhm.ac.uk
www.nature.com
www.jgi.doe.gov
www.verenium.com
www.jbei.org
www.arctech.com
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