A United Kingdom-based company called Superlative Luxury has created an eco-friendly t-shirt priced at $400,000.

The t-shirt is made of 100% organic cotton and the manufacturing process uses only renewable energy, such as wind and solar, reducing the carbon footprint by 90%.

The t-shirt features a spherical pattern created from 16 one-carat diamonds; half of which are white diamonds and the other half are enhanced rare black diamonds.

Black Astrum today launch the Signature Card range of bespoke diamond encrusted business cards, targeting ultra high net worth individuals across the world.

A full set of cards can contain in excess of 30 carats. The average selling price per card is around the £1000 mark, sold in sets of 25, 50 and 100 cards.

“The Signature Card allows our members to express themselves in a truly unique way” said Sufian Khawaja, Black Astrum’s concept director.

Faithful to its annual rendezvous, Blancpain once again presents an exclusive creation for Valentine’s Day, the Saint-Valentin Chronograph 2012 .

This limited series of 14 watches, each set with 2.95 carats of precious stones, offers a fresh take on the refined aesthetics of the Blancpain Women collection.

With its diamond-set bezel and lugs, caseband set with four diamonds and a heart-shaped ruby, crown adorned with a diamond and pushpieces covered with cabochon-cut rubies, the white gold case sparkles with dazzling splendour.

The Lobortas Classic Jewelry House of Kiev, Ukraine has entered the record books by setting 2,525 diamonds in one ring.

The “Tsarevna Swan” ring was presented and measured in Kiev on July 21, 2011, the Guinness Book of World Records confirmed.

The diamonds range from 0.001-0.05 carats with a total weight of 10.48 carats. All of the diamonds are of G color and range from VVS2 to VS1 in clarity.

For 2012, Ralph Lauren presents two new interpretations in its Slim Classique collection, featuring the luxuriously embellished cases.

The first model places a single row of brilliant-cut diamonds on the bezel, set off by a glossy black frame that emphasizes the rectilinear form of the watch.

On the second watch, two rows of diamonds make the bezel sparkle. Diamonds have also been set into the lugs, and a single rosecut diamond adorns the crown.

A 110-carat yellow jewel called the Sun Drop Diamond, thought the biggest of its kind in the world, sold for a record 10 million francs ($10.9 million) at auction in Geneva.

The gem was discovered in South Africa in 2010 and wowed visitors to London’s Natural History Museum where it was displayed earlier this year.

“It’s an absolute record for a yellow diamond,” Sotheby’s David Bennett told journalists after the sale. “It is a spectacular, unique stone.”