A 1,111 ct. diamond—described as slightly smaller than a tennis ball—was discovered this week at the Karowe mine in Botswana.

The type IIa stone, pictured at right, measures 65 mm by 56 mm by 40 mm and is considered the second- largest diamond ever found, behind the 3,106 ct. Cullinan, discovered in 1905. It is also the largest diamond ever found in Botswana.

The remarkable find overshadowed another amazing discovery this week by Lucara: An 813 ct. stone, discovered at the same mine. That is considered the sixth-largest piece of rough ever found.

Lucara president and CEO William Lamb tells JCK that the 1,111 ct. stone will likely have top color. But he did not wish to speculate whether it could produce a group of stones, like the Cullinan did.

“I have not seen the stone, so I do not know what the internal features look like,” he says.

He declined to speculate on a potential price for the stone, which will likely be tendered during the first half of 2016. He did say that it will not be affected by the diamond market’s current woes.

“The price reduction people are seeing is for smaller, lower-quality goods,” he says. “The demand for these large, high-quality stones is still very strong. This is a special stone. I do not think current markets will affect the valuation.”

In a statement, Lamb described himself as “truly at a loss for words” at these twin finds.

JCK online Rob Bates | November 19, 2015 |

(Photo courtesy Lucara)

Previous Article Next Article
“Janet, thank-you for everything you do. As I said before, you are truly an artist, and that is why it is so special buying jewelry from you.” Peter, Atlanta, GA

” Beauty, exquisite design, pleasant and personalized attention. These qualities have been constant in our 20 years of shopping with Janet and Jeff Deleuse – Two exceptionally talented and caring people. The Best!’ Helen P.,Belvedere

"This store has a very pleasant environment and Jeff and Janet are both kind, wonderful people. I used Jeff a few times for appraisals and he was very thorough and was happy to answer lots of questions. He uses scientific methods and tests rather than going solely by appearance as some jewelers will try to do, and his expertise is well respected. On one occasion, he even went out of his way to help expedite a deal for me. He has my highest recommendation. Suzanne T., San Rafael, CA

“Jeff is an incredible gemologist who knows everything there is to know about gem stones. He is a true professional and can be trusted. The quality of their work is impeccible and always consistent. I would recommend Deleuse Jewelers to anyone looking for a new, “bauble,” for themselves or someone special!” Terri B., Ross

"I have used Deleuse Jewelers for many years - for everything from purchasing jewelry to repairing jewelry to getting appraisals on jewelry. Their service and work is superb. I highly recommend them." Suzanne S., Tiburon, CA

"I purchased this beautiful chain from Janet Deleuse about 3 weeks ago. It was an online purchase so I was hoping I would be pleased. It exceeded my expectations as it was exactly as pictured. Delicate and perfectly crafted. Packing was very secure and shipping was quick. I would not hesitate to purchase from Deleuse again! Michele, New Jersey

“Janet and Jeff designed and crafted our wedding rings and did a great job. They worked with existing diamonds we had in an antique ruby cocktail ring, added the sapphire stone and made a beautiful pendant with the ruby. In addition, they designed earrings for our daughters. All are still in great shape today. They are easy to work with and very reliable and trustworthy.” Peg M., San Anselmo

Accreditation includes diplomas from the Gemological Institute of America and the American Gem Society and thirty years of experience.

Recently Viewed