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Today, diamonds are located in the diamond-rich density fraction with the help of X-ray fluorescence, after which the final sorting steps are done by hand.
#jewelleryfacts365 312/365 Diamond fact
Saturday, June 10, 2017
Approximately 130,000,000 carats (26,000 kg) of diamonds are mined annually, with a total value of nearly US$9 billions.
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| Gahcho Kué, co-owned by De Beers Canada and Mountain Province Diamonds, is located at Kennady Lake, about 280 km northeast of Yellowknife. (Image courtesy of De Beers Group) |
#jewelleryfacts365 311/365 Silver fact
Friday, June 9, 2017
Silver has more malleability than any element except gold. One grain of silver can be made into a sheet one hundred and fifty times thinner than a piece of paper.
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| Cake decorated with silver sheet |
#jewelleryfacts365 310/365 Gold fact
Thursday, June 8, 2017
The visors of astronauts' helmets are coated in a very thin, transparent layer of gold (.000002 inches) that reduces glare and heat from sunlight.
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| Gold astronaut's helmet |
Jewellery masterpieces
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| A basket of flowing flowers and leaves with all of the basket, leaves and branches being comprised of diamonds. The petals of each flower are various colored sapphires with a diamond set in the center. On each side of the cascading floral design the bottom section moves so when worn the diamonds and sapphires would reflect even more color and brilliance. It is comprised of 4.12 Ct.T.W. of diamonds and 21.08 Ct.T.W. of colored sapphires. It measures 2 3/4 inches tall by 2 1/4 inches wide. The diamonds are F to G color with excellent clarity. |
#jewelleryfacts365 309/365 Ancient Rome jewellery fact
Wednesday, June 7, 2017
The senators and equites of Ancient Rome wore golden rings as did the the legionary tribunes. The plebeians wore iron rings unless when they were presented with a golden one for their bravery in war or as a reward for special services.
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| This is an ancient Roman iron signet ring set with its original sard intaglio, dating to the 1st century A.D. The intaglio is finely cut with a hand, grasping two wheat stalks and a poppy. This is a reference to the goddess of the harvest Demeter and Persephone goddess of the Underworld. The intaglio has chip to the lower edge, it is firmly set in the ring. This has been stabilized and conserved to a museum display standard, thus is not really suited for wear due the age of the ancient iron. |
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