Colleen B. Rosenblat believes that “it is not we who select the jewelry, but the jewelry that selects us.” Based in Hamburg, Germany, she is known for her contemporary pieces that feature unconventional color and form along with fine materials like pearls, precious gemstones and gold and silver.
When she was a child, Rosenblat stumbled across some smoky quartz in the forest. It ignited a passion for gemology and jewelry that took her around the world. As a teenager, she used a handful of jewelry-making tools borrowed from a friend to craft her own pieces out of silver.
Trips to Australian and Indonesian gemstone mines solidified her focus, and Rosenblat applied to study at the Gemology Institute of America in Los Angeles. After graduation, she studied in Idar-Oberstein in Germany, finished a goldsmith apprenticeship in Frankfurt and earned a jewelry design diploma from Parsons School of Design in New York. She then split her time between the United States and Germany, working as a freelance goldsmith for several years before opening her own workshop and award-winning showroom in Hamburg.
Designed by American architect and interior designer Michael Gabellini, Rosenblat’s showroom luxuriously presents her jewelry. Handmade furniture by American woodworker George Nakashima complements the interior. In 2000, the American Institute of Architects in Philadelphia awarded it the Institute Honor Award for Interior Architecture.
Rosenblat continues to produce exquisite jewelry under her brand. Her work has been featured in high-end fashion magazines such as Vogue, Elle, Harper’s Bazaar, Vanity Fair, InStyle and GQ.
On 1stDibs, find a collection of Colleen B. Rosenblat rings, earrings, necklaces and more.
Amethyst, Mandarine Garnet and Emerald Brooch/Pendant
By Colleen B. Rosenblat
Located in Hamburg, DE
Stunning Colleen B. Rosenblat Brooch with one large 26.89 Carat Amethyst and 4 Mandarin Garnets 16.25 Carat and 4 Emeralds 0.66 Carat each. This Brooch is made of 18 Carat blackened ...
Amethyst, Emerald, Garnet, 18k Gold, White Gold
Elizabeth Locke Pendant/ Brooch with Orange Garnets
By Elizabeth Locke
Located in Darnestown, MD
Elizabeth Locke Pendant/ Brooch with orange garnets. The central stone measures one inch in diameter. It is surrounded by eight oval garnets with a small one at the tip of each. Th...
Garnet, 18k Gold
Victorian 18k Gold Garnet Round Brooch / Pendant
Located in Guaynabo, PR
This is a Victorian 18K yellow gold garnet round pendant brooch. It depicts a round gold plate with a cabochon center adorned with a carved flower. This ...
Garnet, 18k Gold, Yellow Gold
Victorian Garnet Enamel and Diamond Pendant or Brooch
Located in London, GB
A Victorian garnet, enamel and diamond pendant, set to the centre with an oval cabochon-cut garnet, measuring approximately 21.5x17.2mm, surrounded by old-cut diamond-set floral moti...
Diamond, Garnet, Yellow Gold, Silver, Enamel
BULGARI Diamond, Amethyst and Turquoise Brooch/Pendant
By Bulgari
Located in New York, NY
A magnificent composition of color, geometry, and light, this transformable brooch-pendant by BULGARI captures the exuberant spirit of 1970s Italian glamour. Crafted in 18K yellow go...
Amethyst, Diamond, Turquoise, 18k Gold, Yellow Gold
Cameo, Garnets, Diamonds, Rose Gold and Silver Vintage Brooch/Pendant
Located in Napoli, Campania
Vintage brooch/pendant in 9k rose gold and silver structure, mounted with a big cameo finely carved with lady motif framed by a crown of garnets and silver decorations studded with d...
Diamond, Garnet, Gold, 9k Gold, Rose Gold, Silver
Garnets, Diamonds, Rose Gold and Silver Fly Brooch / Pendant.
Located in Napoli, Campania
Fashion brooch 7 pendant in 9 kt rose gold and silver structure mounted with two garnets as eyes, a garnet on the neck and the body is studded with garnets while the wings are studde...
Diamond, Garnet, 9k Gold, Rose Gold, Silver
Diamond Sapphire Amethyst Gold Flower Ring Pendant Brooch
Located in Beverly Hills, CA
This unique piece can be worn three ways, as a ring, pendant and brooch. The ring shank slides on and off the bottom to easily change from ring to brooch and back. It features 4.06 c...
Amethyst, Diamond, Sapphire, 18k Gold, White Gold
Amethyst Citrine Garnet and Smokey Topaz Brooch Pin
Located in Trumbull, CT
Brooch is 100% Handmade and one of a kind. Marquise Citrine and Amethyst are 6 MM X 12 MM One Trillion and Five Round are Smokey quartz and two eyes are Garnet. Total Weight is 7.60...
$2,500
W 0.9 in L 1.4 in
Antique Amethyst Garnet Spider Insect Brooch Bernhard Hertz Denmark Circa 1890
By Bernhard Hertz
Located in New York, NY
Indulge in a wonderful antique Victorian Amethyst, Garnet and Pearl Spider or Insect Beetle Bug Brooch by Bernhard Hertz of Denmark dating to circa 1890. Bernhard Hertz is one of th...
Amethyst, Garnet, Pearl, Silver
$1,720Sale Price|20% Off
H 1.5 in W 1.62 in D 0.38 in
Retro 14K Gold Amethyst & Diamond Pendant Brooch
Located in Henderson, NV
Retro 14K yellow, white and rose gold pendant brooch, featuring a large oval amethyst set in a beaded bezel, surrounded by diamond set ribbons and satin finished gold bars. Amethyst:...
Amethyst, Diamond, 14k Gold, Rose Gold, White Gold, Yellow Gold
$2,998
H 1.8 in W 1.6 in
Vintage Solid Gold Opal Emerald Garnet Pink Blue Sapphire Peacock Brooch Pendant
Located in Montclair, NJ
–Stone(s)– Numerous Natural Genuine Opal, Emerald, Garnet, Pink & Blue Sapphire - Round Faceted & Cabochon Cut - Multi Prong Set - Multi Colors Material: 14k Yellow Gold w/ Multi Co...
Emerald, Garnet, Opal, Blue Sapphire, Pink Sapphire, Gold, Yellow Gold, ...
Edwardian Emerald and Diamond Pendant/Brooch
Located in London, GB
An Edwardian emerald and diamond pendant/brooch, the pear-shaped emerald, weighing approximately 2.20 carats, accompanied by GCS ...
Diamond, Emerald, Platinum