Robb Design Portfolio: Mineral Riches

"You never know what’s inside a geode until you crack it open," says jewelry designer Kimberly McDonald (www.kimberlymcdonald.com; available at Bergdorf Goodman, 212.?753.7300). "Each rock is so distinctive; some sparkle, some bubble, and some appear like a rainbow of colors." Any visitor to a natural-history museum will recognize these rough rocks—black, gray, green, reddish-clay, and off-white—that, when sliced open, reveal internal cavities encrusted with crystal formations. But the miniature versions of these curiosities, which the New York–based McDonald discovered toward the end of 2006 while scouting stones for private clients, absolutely captivated her. "It’s unexpected to see an asteroid-looking rock set with precious diamonds and gold in a stylish design," rel="nofollow" observes McDonald, who develops the concepts for her pieces ($3,000–$95,000) according to the idiosyncrasies and unique characteristics of the individual stones.

Chanel, Mikimoto, Todd Reed, and others reinterpret the classic gem…
The reportedly $2 million Pearl Egg is Fabergé’s first piece in a new series of private commissions…
Photo by Doyle New York
In its 53 years, Doyle has auctioned the estates of Gloria Swanson, Bette Davis, and other film...
Photo by Bertrand Moulin
A cloak of secrecy has long kept the jewelry trade hidden from public view...
The show will spotlight a selection of rare pieces from seven of the world’s top diamond houses…
Two extremely rare jewels, one of which was owned by Napoléon’s niece, will headline the sale…
Exceptional colored gemstones were in high demand at the annual fair…
In celebration of Easter, here are some of Robb Report's favorite Fabergé eggs...
The internally flawless type IIa stone is one of the largest and rarest in existence…
The Milanese jeweler celebrated the opening with one-off jewelry pieces inspired by paintings…