122.52 Carat Blue Diamond Rough Could Fetch $35 Million

An extremely rare piece of diamond rough was recently discovered at the famous Cullinan mine in South Africa, a 122.52 carat blue beauty that is estimated to sell for up to $35 million.

Comparable rough blue diamonds (over 100 carats) are somewhat of a legend: there have only been three or four that were ever recovered according a spokesperson of Petra Diamonds Ltd., the company that currently owns the Cullinan mine. Also in the blue diamond 100-carat plus club is the 115 carat rough from which ‘The Hope Diamond’ was cut. Often described as the most famous diamond in the world, The Hope is a 45.52 carat, Fancy Dark Grayish Blue diamond that is on permanent display at the Smithsonian Museum in New York.

The highest price paid for a rough diamond to date is $35.3 million. That record was achieved by the sale of a 507-carat colorless diamond, which was unearthed at the same Cullinan mine in 2010. Many diamond industry analysts are speculating that their newest find can rival, or even surpass, the $35 million mark.

Blue diamonds get their color from traces of boron impurities trapped in the carbon structure during formation. The crystallized carbon molecules form a very tight lattice structure that is nearly impenetrable; that is the reason for a diamond’s unparalleled hardness. It also makes it very unlikely for any impurities to be introduced into the structure, which is why blue diamonds (and other colors caused by impurities) are exceedingly rare and valuable.

World’s Largest Gold Crystal Worth $1.5 Million

Found in a riverbed in Venezuela, a 217.78 gram gold specimen was recently confirmed by scientists at Los Alamos National Laboratory to be the largest single crystal of gold in the world. So rare is a single gold crystal of this size, that although the metal gold value is only worth approximately $10,000, this crystal’s value is worth over $1.5 million.

To put the significance of its’ size into perspective, a typical gold crystal only measures about 0.25mm. The crystal specimen tested at Los Alamos is 150 times larger than that, or about the same size as a golf ball.

The owner of the record-holding gold crystal is a man from North Carolina, USA who collected other similar specimens over a 30 year stretch in the jungles of Venezuela. He had sent it to renowned gold crystallography expert John Rakovan, to be tested along with three other samples.

Rakovan and his team used neutron imaging technology to confirm three out of the four specimens were single crystals. “The structure or atomic arrangement of gold crystals of this size has never been studied before, and we have a unique opportunity to do so,” he commented.

Unlike gold nuggets, gold crystals are very rare to find in nature. A gold nugget is formed primarily from gold crystals, but also include some other metal impurities such as silver and copper. Gold nuggets usually range from 20K to 22K purity, while a gold crystal is the purest form of gold available.

The 24K gold alloy used in jewelry and bullion is classified as having 999.5/1000 parts gold or higher; it is impossible to reach crystal form, or 1000/1000 parts pure, through refining processes.


Are Smart Rings a Good Idea?

Smart RingAbout 40 years ago, you could have made a phone call from your 23 cm long, 0.8kg mobile phone – that is, if you were rich enough to afford one. Nowadays, nearly everyone in the developed world has a smartphone. Forget about just using your phone for texting or calling! Nowadays you can do anything from check your email and connect to social media, to starting your car (Directed SmartStart) and as a POS system to accept credit card payments (Square Register). The more technology we have, the more we want. But is it getting to be a little too much?

In the race for producing new “smart” products to make our lives easier, there have been some amazing products and some that don’t measure up.

Recently, we have seen a surge in tech wearables – Google glasses, smart bracelets, smart watches; you name it, and they are making it. One of the newest crazes to hit the market are smart rings. Through crowdfunding platforms such as Kickstarter and IndieGoGo, concepts like the Smarty Ring, Fin, and Ring have gained a lot of support and media attention. However, while many manufacturers are offering up their version of a smart ring, none have been successful in creating one on a consumer scale. Why?

Most of the problems center on its size. When trying to fit all of the sensors and functions (not to mention the battery) into a gadget that is less than an inch wide and hollow to boot, you are going to have to make sacrifices. And the very first sacrifice is the wearability: all smart rings and prototypes on the market today are wide and thick, which could be uncomfortable for every day wear as they are intended for. Another factor is that they are made with materials like hard plastics and steel, which aren’t as durable or allergy-safe. There is a reason why silver, gold, and platinum are the standard metals for jewelry: they have stood the test of time.

For all of their promises of Bluetooth enabling, user interfaces with motion sensors, vibration and more, we have yet to see a fully functional example of a smart ring. The majority are currently in various prototype stages. Experts are concerned that the miniaturization will affect the smart rings’ performance. Don Lehman, an industrial designer based in NYC, agrees. “Wearables are hard. No one has gotten bracelets just right yet, so how can we expect that same tech to shrink down further to rings?”

Even if these new smart rings worked as they should, would it really be that useful?

Ring, for example, has a text transmission function the user to write a message in the air rather than type it out on a cell phone. But you still have to use the phone to select contact, and customize the message. Fin has a security authenticator feature that can be used as an extra protection to unlock your other devices. But like all other accessories, a ring can easily be lost, and it would be a hassle to unlock your devices without it. Other common features of smart rings include receiving social media alerts, remote control for home appliances, and storage of a small amount of data. Rather than simplifying, smart rings seem to just add another layer of interaction to what you’re already doing.

The idea does hold some promise for the future, as technology progresses. But as of right now, take a pass on that new smart ring.