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Colleen B. Rosenblat Jewelry

German

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.

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Period: 1990s
Creator: Colleen B. Rosenblat
Colleen B. Rosenblat Stunning Lapis Lazuli Gold Necklace
By Colleen B. Rosenblat
Located in Hamburg, DE
Colleen B. Rosenblat designed this stunning necklace with 26 lapis lazuli with 22k yellow gold hammered gold pieces in between. Width of lapis lazuli balls: 15.5 mm
Category

1990s German Colleen B. Rosenblat Jewelry

Materials

Lapis Lazuli, 22k Gold, Yellow Gold

One of a Kind Ring in 18 Carat White Gold, with 1 Aquamarine of 140.4 ct
By Colleen B. Rosenblat
Located in Hamburg, DE
This very special cut could remind you of an iceberg. It has a length of 48 mm and a wide of 29 mm. The head of the ring is 24 mm high. Ring size: 54 (US 6.8) Designed by Colleen B. ...
Category

1990s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Aquamarine, 18k Gold, White Gold

Certified 6.2 Carat Rubelite Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
Very beautiful 22kt hammered yellow gold ring set with a 6.2 ct Rubelite. The size is 8. Designed by Colleen B. Rosenblat
Category

1990s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Rubelite, 22k Gold

63.04 Carat Aquamarine Gold Necklace
By Colleen B. Rosenblat
Located in Hamburg, DE
This marvelous aquamarine 63.04 ct adorns this 18k white gold necklace which is 51.5 cm long. The pendant is 4.2 cm long and 2.8 cm wide. This aquamarine has a very special mirror cu...
Category

1990s German Colleen B. Rosenblat Jewelry

Materials

Aquamarine, 18k Gold, White Gold

Colleen B. Rosenblat turquoise coral gold necklace
By Colleen B. Rosenblat
Located in Hamburg, DE
Double breasted turquoise necklace with a breathtaking coral clasp in 22k yellow gold. The clasp has the following dimensions: 75.5 mm length and 47.5 mm wide Designed by Coll...
Category

1990s German Colleen B. Rosenblat Jewelry

Materials

Coral, Turquoise, 22k Gold, Yellow Gold

Colleen B. Rosenblat tanzanite gold ring
By Colleen B. Rosenblat
Located in Hamburg, DE
The beautiful midnight-blue tanzanite 22.35 ct and 6.71 ct TW/if brilliant cut diamonds make this ring to an impressive eye catcher. Ring size: 56 Designed by Colleen B. Rosenblat
Category

1990s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Tanzanite, 18k Gold, White Gold

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18K Yellow Gold Aquamarine Drop Necklace
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Dimos 18k Gold Lapis Lazuli Pendant
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Pendant with Lapis Lazuli in 18k yellow gold. Beautiful and artistically work set with a cabochon natural lapis. A very daily and elegant piece of jewelry.
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Dimos 18k Gold Lapis Lazuli Pendant
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The length of the necklace is 26 inches ( 66 cm). The size of the rondelle beads is 7 mm. The necklace is made of gems in saturated, deep, dark blue with inclusions of gold pyrite. Authentic, natural color. No thermal or other mechanical treatments were used. The necklace is fastened with a gold plate silver box clasp with a natural lapis lazuli cabochon. This necklace alternates beads of lapis lazuli with 2 mm vintage gold beads...
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Gold Coral Necklace
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18k gold necklace with coral gems. Necklace is 17" long and 7mm wide. Marked 750. Weight 19 grams.
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Aquamarine, Kyanite, Freshwater Pearl & 18K Gold Necklace
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A hand-made long necklace of wonderful dark blue kyanite beads, round aquamarine beads, freshwater pearls, spaced by 18k gold beads, closes with an 18k gold toggle clasp. The lovely...
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2010s Colleen B. Rosenblat Jewelry

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Aquamarine, Pink Sapphire and White Diamond Cocktail Ring in 18k White Gold
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Glamorous Gemstones - Sunita Nahata started off her career as a gemstone trader, and this particular collection reflects her love for multi-colored semi-precious gemstones. The piece...
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Grand Aquamarine and Diamond Necklace 18k White Gold
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21st Century and Contemporary Unknown Edwardian Colleen B. Rosenblat Jewelry

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AJD Huge Dramatic Natural Turquoise and Real Bamboo Coral Necklace
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This natural highly polished Chinese Turquoise is enhanced with polished round and polished chunks of natural red Bamboo Coral in this beautiful 18 inch l...
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21st Century and Contemporary American Colleen B. Rosenblat Jewelry

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Tanzanite 14k Gold Ring, Flower Ring with Tanzanite
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Previously Available Items
27.10 Carat Fire Opal Yellow Gold Cocktail Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
This statement ring is unique because of its wonderful stone 27.10ct Fire Opal. An eye-catcher without equal. This handmade ring is made of 22 carat yellow gold.
Category

1990s German Colleen B. Rosenblat Jewelry

Materials

Opal, 22k Gold, Yellow Gold

Colleen B. Rosenblat Onyx Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
A pair of scarab earrings in 18k white gold with six desirable deep black onyx. This creation was designed by Colleen B. Rosenblat.
Category

1990s German Egyptian Revival Colleen B. Rosenblat Jewelry

Materials

Onyx, 18k Gold, White Gold

Colleen B. Rosenblat Rubellite Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
These stunning pink rubellites 14.7 ct are set in 22k hammered yellow gold. Ready to wear drop earrings designed by Colleen B. Rosenblat.
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1990s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Rubelite, 22k Gold, Yellow Gold

Colleen B. Rosenblat Rubellite Gold Earrings
Colleen B. Rosenblat Rubellite Gold Earrings
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W 0.74 in L 1.43 in
Colleen B. Rosenblat Pink Tourmaline Gold Cocktail Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
Extraordinary 22k hammered yellow gold ring with a beautiful pink tourmaline (rubellite) 20.09 ct. Dimensions: 37 mm x 21 mm Ring size: 56
Category

1990s German Medieval Colleen B. Rosenblat Jewelry

Materials

Tourmaline, 22k Gold, Yellow Gold

Colleen B. Rosenblat jewelry & watches for sale on 1stDibs.

Find a range of Colleen B. Rosenblat jewelry & watches available on 1stDibs. Each of these unique items was designed with extraordinary care, often using gold. While looking for the most stylish antique or vintage Colleen B. Rosenblat jewelry to pair with your ensemble, you’ll find that Colleen B. Rosenblat diamond jewelry & watches, from our inventory of 24, can add a particularly distinctive touch to your look. We have 112 pieces in this collection as well as a number of other designs by this jeweler. While this collection reflects work that originated over various time periods, most of these items were designed during the 21st century and contemporary. If you’re looking for additional options, many customers also consider jewelry & watches by Thomas Leyser, and Erich Zimmermann. Prices for Colleen B. Rosenblat jewelry & watches can differ depending upon gemstone, time period and other attributes. On 1stDibs, the price for these items starts at $2,161 and tops out at $100,499, while pieces like these, on average, can sell for $15,237.

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