The most coveted of engagement ring is a diamond...solitaire or variation of... I'm sure the woman wearing this ring is thrilled with it!!!
“Adamas” meaning invincible is the ancient Greek term from which the word diamond is derived from…text dating as far back as before 400BC make reference to diamonds and their possible value so they aren’t a modern day treasure!
There are more than 20 countries that produce diamonds but a few of the important suppliers are Botswana, South Africa, Angola, Congo, Namibia, Sierra Leone, Central African Republic, Guinea, Russia, China, the United States, Brazil, Venezuela, Canada and Australia.
While the diamond, which is made from carbon, is the hardest natural mineral it has 4 directions of cleavage…a sharp blow in one of these directions and the diamond will split (cleave). A jeweler or setter must take care to ensure these areas are not in a position to be hit and therefore split when the stone is set in a piece of jewelry…
The diamond in the rough is not brilliant and may even appear greasy when found…polishing and cutting is necessary to transform the stone to what we expect to see in a stunning piece of jewelry!
This is part of a belt buckle made from raw(uncut)diamonds set in gold from 19th century India. The belt width is 2 inches...gives you an idea of the size of the diamonds...
Diamonds have been found in many colors, yellow, brown, pink, and of course colorless. The green, blue, reddish, and black, diamonds are more valuable…depending on the stone they can be much more valuable! How about this for a "stunner"...a 10.4 black diamond flanked by by glorious clear baguette diamonds. The spots you see on the black diamond aren't dust, they are inculsions and marks on the diamond...they stand out more because it is black. This photo was taken in a factory in Amsterdam, Holland.
What an array of colored diamond? These lovely diamonds are on display in the "Natural Hisory Museum" in London, England. Alan Bronstein, an American diamond consultant started this collection in 1980, over the years Alan and his friend Harry Rodman add to the collection...and still are!!!
As much as 80% of diamonds found have flaws which are then classified as industrial grade diamonds, lending themselves to industrial and manufacturing usage… such as cutting abrading or polishing tools, used in drill bits, as well as in mining, oil and gas, electronic, optical, thermal, machining, dentistry, and medical industries along with scientific applications. Such a beautiful versatile mineral!!!
Only diamonds of the highest quality are for jewelry…when purchasing a piece of jewelry made with diamonds a buyer should make themselves familiar with the “four C’s”, color, clarity, carat weight and cut…
Color: colorless stones are extremely valuable, yellow or brown-tinged are considered imperfect. Clear strong colors such as blue, green, red, orange and pink are considered “fancies” and are rare and highly prized!
Clarity: this is determined by the presents of or lack of blemishes or flaws.
Carat: the weight is the diamond’s size
Cut: the shape and proportion of the stone
Today you will find diamonds in all sizes but the shapes are relatively basic, beginning with the standard “brilliant cut”, then you have a grouping of cuts called the “fancy cuts” baguettes, pear shapes, heart shapes and marquises fall in this category, Asscher, Trilliant, and princess cuts are modern technology cuttings…new baguettes cut such as Princette and bagillion are becoming more popular as the new technology allows for more brilliance in these cuts.
“Grease adheres to diamonds, affecting their color and brilliance. Fatty deposits from dishwashing and cosmetics can lower the color of diamond by several grades. The simplest way to clean a diamond is to sit it in hot water with a drop of dishwashing liquid and gently brush it with a soft toothbrush. Alcohol also removes grease and dirt”. Quoted directly from Pg. 121 The Jeweler’s Directory of Gemstones
Five of the many famous and important Diamonds:
Dresden Diamond: 41 carats…early history not known, possibly from India, now in the Green Vaults in Dresden, Germany
Hope Diamond: 45.52 carats…first seen in 1830 bought by banker by the name of Hope…since 1958 in the Smithsonian Institute, Washington DC
Cullinan I or Star of Africa Diamond: 530.20 carats…one of 105 stones cut from largest rough diamond ever found 3,106 carats…kept in the Tower of London, it is on the scepter of the king’s insignia.
Sancy Diamond: 55 carats…on display in the Louvre, Paris
Tiffany Diamond: 128.51 carats…when found in 1878, as a rough diamond it was 287.42 carats…purchased by Tiffany in New York and cut in Paris with 90 facets.
Diamonds… steeped in history, and legend…always in fashion!!!