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The MGS Precious Metals Blog

Manhattan Gold & Silver is an industry leader in precious metal pricing and refining with more than 30 years of experience. During our time in the business, we’ve found the topic of precious metals to be a vast and interesting one. Here on our precious metals blog, we write in-depth posts about the science of precious metal refining, historical and modern uses for precious metals, market news, and much more. Subscribe to our RSS feed to stay current, and discuss the latest posts on our Facebook and Google+ pages.

Fifth Largest Gem-Quality Diamond Sold for $40 Million

November 6, 2018 07:00
Fifth Largest Gem-Quality Diamond Sold for $40 Million

A 910-carat diamond from southern Africa was recently sold to an undisclosed buyer in Antwerp, Belgium, for $40 million.

The gem is a D color, Type 11A, which is the highest color and quality rating possible. It’s also the fifth largest gem-quality diamond that’s ever been discovered, according to Diamond District Monthly.

Experts estimate that it could produce 10 to 30 high-quality, smaller diamonds of varying sizes.

The diamond has been nicknamed the “Lesotho Legend” after its country of origin.

Many large diamonds have been found there, including the “Lesotho Promise,” which was 603 carats and sold for $12.4 million.

It was cut down to 26 smaller diamonds, each one as flawless as the next.


Source:

Diamond District Monthly, May 2018
USA Today

The Uses of Platinum

October 30, 2018 12:48

In ancient times, Egyptians and early Americans used platinum for jewelry and decorative pieces. The first record of platinum dates back to 1557, when Italian physician Julius Scaliger described a metal found in Central America that wouldn’t melt. He called it “platina,” which means “little silver.”

Today, the primary uses of platinum are to make catalytic converters and jewelry.

But there are a number of surprising applications for this precious metal. Here are some of them.

What is ‘White Gold’?

October 23, 2018 07:00
What is ‘White Gold’?

There are many different types of precious metals, including gold, silver, platinum, and palladium.

But, if you’ve ever shopped for an engagement ring or wedding band, you’ve also likely heard of another option — “white gold.”

It’s made of pure gold, mixed with an alloy metal that has a silvery-white color, such as nickel or palladium.

Typically, a white gold ring might be 25 percent nickel and zinc. If it’s stamped “18 karat,” it would be 75 percent pure gold.

Since some people are allergic to nickel, however, palladium can also be used to create white gold.

It produces a higher quality material — and costs more as a result.

White gold was originally created as a way to imitate palladium, according to the United States Geological Survey.

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