|
Analysis
, Process, Consultant, Company Profiles, Suppliers,
Market, Report
Primary Information Services
Home.
Ordering Information.
Contact
|
General
- A gemstone or gem, also
called a precious or semi-precious stone, is a piece of attractive
mineral, which when cut and polished is used to make jewelry or other
adornments.
- However certain rocks,
and organic materials are not minerals, but are still used for jewelry,
and are therefore often considered to be gemstones as well.
- Most gemstones are
hard, but some soft minerals are used in jewelry because of their lustre
or other physical properties that have aesthetic value. Rarity is another
characteristic that lends value to a gemstone.
Process
- There are a number of
good machines available for cutting precious stones - a process called
faceting. Although the machines may look complicated, they consist
primarily of a grinding plate called a lap and a set of protractors that
help the faceter hold the stone accurately against the lap.
- The faceter controls
the actual faceting process during the grinding and polishing processes on
each face of the stone. A faceted gem begins with the selection of
faceting rough, which is chosen for color, clarity, type of stone, shape,
and perhaps some other qualities as well.
- Raman
micro-spectroscopy is an ideal method for the examination of marketable
gemstones. The lack of sample preparation and the non-destructive nature
of Raman analysis make it ideal for the analysis of even high-value gems.
- Gemstone is heated to
high degrees which is called gemstone heating. Most real Blue Sapphires
today are heated to high degrees during natural faceting process.
Market
- Merchants in Peshawar,
Pakistan, cut low-value stones for the domestic market and send the medium
and high quality stones to centres around the world for accurate cutting
for the Western markets. This pattern of trade ensures that Afghanistan
gains little value from gemstones.
- The gemstone and
jewellery sub-sector in Kenya is liberalized; there are no trade
restrictions. So long as a miner or dealer is licensed, he or she can
trade in an otherwise free market.
- In Kenya licensed
dealers are only allowed to conduct their business from licensed premises.
Dealers can sell their products either as raw material or as finished
products.
- The gems and jewellery
industry occupies an important position in the Indian economy. It is a
leading foreign exchange earner, as well as one of the fastest growing
industries in the country.
Report
- A report to complement
the footage describes how the international trade in diamonds and
gemstones has provided vast profits for the companies which mine, process
and market these precious stones.
- The majority of the
world's diamonds are traded through the Central Selling Organisation
(CSO), the marketing arm of De Beers, based in London.
- De Beers is the biggest
player in the world diamond trade, controlling the sale of most of the
world's diamonds.
- India is the world's
biggest diamond and gemstone cutting centre, and polishes 70% of the
global diamonds yield.
- The gem and jewellery
industry now provides 17% of India's export earnings, but does not mine
the diamonds and gemstones it polishes - its major supplier of diamonds
being the Rio Tinto-controlled Argyle mine in Western Australia.
Entrepreneur who want
the informations on "Analysis
, Process, Consultant, Company Profiles, Suppliers,
Market, Report "
can E-Mail us to
informer@eth.net,
primaryinfo@gmail.com
|
|
Primary
Information Services
21 Murugappan St, SwamyNagar
Ext2,
Ullagaram, Chennai - 600091, India.
Phone:
91 44 22421080 Email :
informer@eth.net,
primaryinfo@gmail.com
Mobile
numbers:9940043898, 9444008898 Fax : 91 44
22423753 |