9.07 carat diamond found at Crater of Diamonds State Park

Kevin Kinard found the 9.07 carat stone in the Crater of Diamonds State Park on Labor Day. It is the second-largest ever found at the park.

Pink & purple sapphire

Camélia Origami earrings from the Chanel Jardin de Camélias collection.

Boucheron Python ring with a Ceylon pink 17.36 carats cushion cut sapphire

Sortilège de Cartier collection ring. White gold, pink and purple sapphires.

Dior

de Grisogono

Rose gold set with 28.3 carats of pear-shaped pink sapphires and 5.9 carats of pear-shaped rubellites. Chaumet.

Graff pink diamond floral brooch shines

Graff has released a new brooch that pays homage to the house’s history of innovative diamond design: a floral brooch featuring 63 carats of pink and white diamonds. The piece took 240 hours to make, and incorporates 293 round pink diamonds, accented by pear-shape and marquise white diamonds. No word on price, but with the supply of red and pink diamonds expected to decline 90% next year this piece will likely hold it's value.

Cullinan mine yields blue diamonds

The high quality stones range in size from 9.6 carats to 25.8 carats.

South Africa’s Petra Diamonds (LON:PDL), which put itself up for sale in June, announced it has found five high-quality blue diamonds. Petra, which has been hit by a triple whammy of weak market conditions, power emergencies and covid-19, found the Type IIb blue diamonds at its flagship Cullinan mine.

High Flower Jewels

Oscar Heyman

Van Cleef & Arpels

Cartier

Boghossian

Boghossian

Dior

Giglio

Chanel

Van Cleef & Arpels

Chanel

Burma Ruby

Fine ruby is the rarest and most valuable of all colored gemstones. Burma is the traditional source for fine ruby, with new material coming from Madagascar, Tanzania and Mozambique. Treatment is common. Heat treatment has been used for centuries. It is used to improve the clarity and colour of rubies. The ruby is placed in a crucible and heated to around 1800 degrees.

In 2004, a gem lab in Chanthaburi, Thailand developed a technique to improve the appearance of rubies. Previously undesirable gems could be repaired using heat treatment with lead glass. The refractive index of corundum and lead glass are similar, allowing light to travel through the stone and improving color and clarity. Fracture-filled rubies sell at a fraction of the cost of untreated rubies of similar color.

World's Most Expensive Necklaces

Chopard Magnificent Diamond and Emerald Necklace - 191 carats of emeralds, set between 16 carats of diamonds. $3m.

De Beers’ Marie Antoinette Necklace features more than 181 carats of diamonds, including an 8 carat, pear-shaped white diamond. $3.7m

Neil Lane’s Diamond Necklace features 140 carats of pear-shaped, cushion-shaped and teardrop-shaped diamonds, set in platinum $4m.

Diamond Pendant Necklace by Christie’s sold at an auction in 2001. Pear diamond weighs 47.49 carats. $4.8m

James W. Currens the Red Scarlet necklace was sold for $5.1m in 2012.

The “Mrs. Winston”: $5.8m.

The Etcetera Burmese Ruby necklace became the most expensive ruby-based necklace. It sold for $6.4m in 2013.

Christie’s Diamond Necklace. 52 round diamonds weighing a total of 104.84 carats sold for $8.14m 2013.

Leviev’s Vivid Yellow Diamond Pendant. 77.12 carat vivid yellow diamond. $10m.

Garrard’s Heart of the Kingdom Ruby necklace features as its centerpiece a 41-carat, super rare, heart-shaped Burma ruby. The stone is surrounded by more than 150 diamonds. $14m

Winston’s version of the Heart of the Ocean Diamond necklace with a blue diamond of 15 carats. $20m

The Hutton-Mdivani necklace by Cartier sold for $27.4 million, a world record for a Cartier jewel. For hundreds of years, jadeite has been a symbol of supreme status and wealth and this stunning bead necklace is undeniably one of the best examples of its type in the world. It was last offered on the market in 1994 and fetched $2m – a record at the time for a piece of jadeite jewellery.

L'Incomparable, features a large yellow stone suspended from a rose gold setting with 90 white diamonds and weighs 637 carats in total. The necklace was made by Mouawad and features a yellow, internally flawless diamond weighing 407 carats with 90 white diamonds weighing 230 carats. The rough stone was found in a pile of mining tailings by a young girl in the Democratic Republic of Congo. Wallace Chan's “A Heritage in Bloom” is said to be worth $200m. The piece boasts 383.4 carats in precious stones with the main flawless stone worth $35m.