2. 3 Billion Years Ago
Carbon, the key element in diamond
formation, begins to evolve under
extreme heat and pressures
800 BC
First recorded accounts of diamond
mining in India
100
Writings of the Roman scholar Pliny
the Elder confirms the presence of
diamonds
1215
Pope Innocent III declares an
engagement period between a
betrothal and the marriage
ceremony
1330
A diamond cutting industry begins in
Venice, Italy
1477
Archduke Maximillian of Austria
presents Mary of Burgundy with a
diamond engagement ring
1499
Portuguese navigator Vasco da
Gama gives European diamond
traders better access to India through
discovery of a new route to the
Orient
1550
Belgium becomes the diamond
cutting and trading center
1600
Claw (prong) settings are used to
secure diamonds in fine jewelry
1729
First diamonds are found in Brazil
1866
Erasmus Jacobs discovers a 21.25-
carat diamond along the Orange
River in South Africa
1870
Diamond fields, most notably the
Kimberly Mine, are discovered in
South Africa, marking the beginning
of large scale diamond mining
1902
Legendary diamond cutter Joseph
Asscher introduces the Asscher cut
1919
Marcel Tolkowsky publishes a thesis
on the ideal proportions for creating
the round brilliant cut diamond which
is still used today
1931
The Gemological Institute of America
(GIA) is founded by Robert M. Shipley
1947
DeBeers coins the phrase “A
Diamond Is Forever”
1950's
The universal diamond grading
system, known as the Four C’s (color,
cut, carat, clarity), is introduced by
GIA
1980
The Princess-cut diamond is
developed in the United States
1988
Diamond mining begins in Canada at
the Ekati
1993
Gharenu Established into
Diamond Jewellery Industry
3. Regarded for their exquisite beauty and the timeless qualities of love and devotion that
they represent, diamonds have fascinated mankind throughout the centuries. The most
precious and enduring of all gemstones, diamonds were formed billions of years ago,
deep within the earth. Only a small number survive the journey to the earth's surface;
fewer still are of a quality that can be made into a precious piece of jewelry.
Exploration Mining Sorting
Cutting &
polishing
Jewellery
Manufacturing Retailing
4. IT'S A JOURNEY THAT BEGAN SEVERAL
BILLIONS YEARS AGO
Diamonds are beautiful, mysterious and rare. They survive an incredible journey to reach us, a
journey that may have begun as long as 3.3 billion years ago. They are created when carbon is
put under immense pressure and temperature deep within the earth—at distances of 250 miles
or even greater.One of nature's most unique and dazzling gifts, diamonds come from two types
of deposits. Primary deposits generally consist of diamond-bearing "pipes" of a volcanic rock
called "kimberlite." From deep in the earth these deposits were carried to the surface in molten
rock, known as magma. Secondary deposits, also referred to as alluvial, were formed as a result
of erosion of material from primary deposits and contain diamonds that have traveled some
distance from their original source.
Even though world diamond production has tripled since 1980, diamonds remain a scarce
resource. More than 12,000 kimberlite deposits have been found worldwide in the last 25 years,
yet fewer than 1% have contained enough diamonds to make them economically viable.
Geologists utilize many methods in diamond exploration, including satellite surveys,
reconnaissance sampling and drilling in the ground. Some diamond producing countries
include Botswana, Canada, Namibia, Russia, South Africa, Australia, and Tanzania.
6. at the mine…..diamond recovery
process
Blasting
Crushing of
ore
Scrubbing
Heavy
media
separator
Xray
separator
7. at the mine…..diamond concentrate
During this part of the process the
diamond product and non-diamond
product are separated and treated
with responsible practices.
The diamond concentrate is separated
by size and the pinks are separated for
processing in Australia.
Caustic
recovery
ACID
PH neutralise
ore
Responsible
return of ore
Environmental
rehabitation
8. mine extraction
The process of extraction and
separation of the ore from its
Kimberlite host, forms the production
or output level of the mine, which is
measured in carats per tonne of ore.
250 tonnes of ore must be mined and
processed to produce 1 carat,
depending on the mine (Cited by Wall
St Journal)
11. value add…
The diamond is forever altered into its
final polished state, via a plan usually
by a form of SARIN, combined with
years of polishing experience within
the polishing team, and its supervisor.
The team try to maximise yield
(commercial) whilst keeping in mind
proportions/symmetry/cut (brilliance).
12. polishing process
Sawing
The process of dividing a stone into two pieces using either a blade or a laser.
Cleaving
A process where the rough stone is split into two pieces to improve the shape or the quality.
Bruting
A process which shape the stone in to the desired shape.
Polishing
– The process of applying facets to the surface of the stone.
17. recent trends in value addition….
Trends to manufacturing to ideal proportions (known as triple EX), or hearts
and arrows, is an attempt by the industry to extract more value from the
diamond product, whilst also satisfying consumer demand, since the ideal
proportions are highly sought after and command higher prices.
19. Company profile
We, at Gharenu, are driven by passion which provides platform for the most
important element of all "YOU" !
Founded in 1993 with objectives of Ethics and clarity as that of the gem itself.
Gharenu is a Gujarati word that stands for ornament; and signifies one that
embellishes or adorns; that which adds grace or beauty.
Gharenu’s philosophy is “You can make money without doing wrong”. Trust,
ethics, quality, transparency and commitment are the values that Gharenu
believes in.
Over 60% of our business, with 8-10 cities in India and abroad, happens just over
phone, which shows the trust we have earned all over these years. We truly
believe in and deal only in diamonds that pass the Kimberly process.
20. About Product
Our products are not predesigned. Rather they are designed for you.
Rendezvous is the outcome of this concept, thus we are eager to serve you the
best of our quality. We believe that every person has individuality and we thus
customize the designs. Each product is made for the individual to suit their
frame, color of skin, profile, height and distinct features.
We assess all the parameters of your jewellery and fix on a very rational price
which is the same for all. We follow the criteria and pricing methods with highly
detailed, precision oriented and accurate analysis for each stone using more
than 150 criteria, specific master stones, and this helps us to capture and deliver
the best value for your valued money.
21. Current Scenario
“Too many people today know the price
of everything and the value of
nothing.”
-Ann Landers (1918-2002)
22. We do nothing but add value
Value Addition - “Is the amount of value added to a
product's in final or semi-processed form over and above the value in its raw
form”
38. 3ct Heart Pair
H Color VVS1 Clarity
Excellent
Polish
Excellent
Symmetry
None
Fluorescence
Pair Value
Rs. 65 lacs
39. 2ct Heart Pair
E Color
VVS1-VVS2
Clarity
Excellent
Polish
Excellent-
Very Good
Symmetry
None
Fluorescence
Pair Value
Rs. 36.30 lacs
40. 1.5ct Heart Pair
F Color
VVS1-VVS2
Clarity
Excellent
Polish
Excellent-
Very Good
Symmetry
None
Fluorescence
Pair Value
Rs. 15.50 lacs
41. 1.5ct Heart Pair
I Color VVS2 Clarity
Excellent
Polish
Excellent
Symmetry
None
Fluorescence
Pair Value
Rs. 10.25 lacs
42. 1.5ct Pear Pair
D Color
Flawless
Clarity
Excellent
Polish
Excellent
Symmetry
None
Fluorescence
Pair Value
Rs. 31.25 lacs
43. 1.5ct Oval Pair
D Color
Flawless
Clarity
Excellent
Polish
Excellent
Symmetry
None
Fluorescence
Pair Value
Rs. 30 lacs
44. 3ct Sq. Emerald Pair
G Color
VVS1- VVS2
Clarity
Excellent
Polish
Excellent
Symmetry
None
Fluorescence
Pair Value
Rs. 55 lacs
45. 1.20ct Sq. Emerald Pair
E Color VVS1 Clarity
Excellent
Polish
Excellent-
Very Good
Symmetry
None
Fluorescence
Pair Value
Rs. 9.50 lacs
46. 1.60ct Cushion Modified Brilliant Pair
I Color
IF-VVS1
Clarity
Excellent
Polish
Very Good
Symmetry
None
Fluorescence
Pair Value
Rs. 9.60 lacs
47. 1.80ct Sq. Radiant Pair
H Color VVS1 Clarity
Excellent
Polish
Excellent
Symmetry
None
Fluorescence
Pair Value
Rs. 13.30 lacs
48. Thank you for spending your time with us. As Diamonds your time is also
equally valuable to us.
Most of our creation has come out from your suggestions.
Your feedback is crucial for us.
You can write us on marketing@gharenu.in or call us on 079-40074050.
