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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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Creator: Colleen B. Rosenblat
Returnable Items Only
Colleen B. Rosenblat Diamond Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
These glamorous red carpet earrings are set in 18 carat white gold with various 12,65 ct cognac diamonds.
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Brown Diamond, Diamond, 18k Gold, White Gold

Colleen B. Rosenblat beryl gold ring
By Colleen B. Rosenblat
Located in Hamburg, DE
The beryl has 33.97 ct it sits exposed in the beautiful white gold setting. Designed by Colleen B. Rosenblat. Ring size: 57
Category

Early 2000s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Beryl, 18k Gold, White Gold

Colleen B. Rosenblat amethyst golden beryl gold earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
Beautiful amethyst and golden beryl were used in these eye-catching white gold earrings by Colleen B. Rosenblat. Eight amethyst weigh 9.01 ct and two golden beryl have a weight of 7....
Category

2010s German Medieval Colleen B. Rosenblat Jewelry

Materials

Amethyst, Beryl, 18k Gold, White Gold

Colleen B. Rosenblat gold chain
By Colleen B. Rosenblat
Located in Hamburg, DE
Combine this 55 cm long and 3 mm wide 18k white gold chain with the tourmaline pendant from Colleen B. Rosenblat. 1stdibs reference number of the tourmaline pendant: LU3322981982
Category

2010s Colleen B. Rosenblat Jewelry

Materials

18k Gold, White Gold

Cross Pendant, 18K White Gold, Star Sapphires 6.66 ct, Diamonds 0.65 ct
By Colleen B. Rosenblat
Located in Hamburg, DE
Take a look at this precious pendant with its stunning star sapphires and diamonds. The stars on the sapphires will be visible as soon as one light source is shining on the pendant. ...
Category

2010s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Star Sapphire, Diamond, 18k Gold, White Gold

Colleen B. Rosenblat Tourmaline White Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
Studs in 18k white gold with 8 green Tourmalines 11,3 ct. Designed by Colleen B. Rosenblat
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Tourmaline, 18k Gold, White Gold

Colleen B. Rosenblat Tourmaline Rhodolite Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
Two beautiful vibrant colors are mixed up in these 18k white gold earrings. With its perfect length of 22 mm they are wearable every day. The green tourmalines have a weight of 5.4 c...
Category

2010s German Contemporary Colleen B. Rosenblat Jewelry

Materials

18k Gold, White Gold

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

Colleen B. Rosenblat Chrysoprase Necklace
By Colleen B. Rosenblat
Located in Hamburg, DE
This chrysophrase necklace brings the spring into your life. The clasp is set in 18 K white gold. It is designed by Colleen B. Rosenblat.
Category

Early 2000s German Colleen B. Rosenblat Jewelry

Materials

Chrysophrase, 18k Gold, White Gold

Colleen B. Rosenblat Pink Tourmaline Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
This 18K rose gold ring with a gorgeous pink tourmaline 11.25 ct. is one of a kind
Category

2010s German Modern Colleen B. Rosenblat Jewelry

Materials

Tourmaline, 18k Gold, Rose Gold

Colleen B. Rosenblat Tourmaline Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
Are you ready to wear this beautiful 18k rosé gold ring with a vibrant pink tourmaline 13.08 ct designed by Colleen B. Rosenblat? Ring size: 55
Category

2010s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Tourmaline, 18k Gold, Rose 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

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

Hammered Gold Collier, 18 kt hammered white gold, 51 diamonds 8.87 ct TW/SI
By Colleen B. Rosenblat
Located in Hamburg, DE
An extraordinary high-class hammered white gold necklace with 51 brilliant-cut diamonds 8,87 ct TW/SI. The size of each segment varies between 23 -...
Category

Early 2000s German Colleen B. Rosenblat Jewelry

Materials

18k Gold, Rhodium, 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 Citrine Gold Bracelet
By Colleen B. Rosenblat
Located in Hamburg, DE
Handmade contemporary bracelet with 5 cabochon citrine 41,29 ct. set in 18K white gold. this one of a kind piece is handmade and designed by Colleen B. Rosenblat
Category

Early 2000s German Colleen B. Rosenblat Jewelry

Materials

Citrine, 18k Gold, White Gold

Colleen B. Rosenblat Topaz Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
This enormous cocktail ring is set in 18 carat rose gold with a 74,30 ct topaz. This ring is handmade and designed by Colleen B. Rosenblat. Ring size: 59
Category

Early 2000s German Colleen B. Rosenblat Jewelry

Materials

Topaz, 18k Gold, Rose 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

Colleen B. Rosenblat 14.45 Carat Indigolite Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
A classic rectangular Ring with an incredible indigolite 14.45 ct in 18k white gold. The blueish green color is exceptionally rare. And elegant & modern ring designed by Colleen B. R...
Category

2010s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Tourmaline, 18k Gold, White Gold

Colleen B. Rosenblat South Sea Baroque Pearl Gold Necklace with Gold Clasp
By Colleen B. Rosenblat
Located in Hamburg, DE
Everyone should have one pearl necklace in his jewelry box, especially when it comes along with noble shiny southsea baroque pearls with a 22k yellow gold clasp topped off with Colle...
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

South Sea Pearl, 22k Gold, Yellow Gold, Gold

Colleen B. Rosenblat Amber Gold Necklace
By Colleen B. Rosenblat
Located in Hamburg, DE
stunning and impressive handmade amber necklace in 22k yellow gold from the “one of a kind” collection by Colleen B. Rosenblat. This necklace is 55 cm long and between 4.5 cm and 5.6...
Category

Early 2000s German Colleen B. Rosenblat Jewelry

Materials

Amber, 22k Gold, Yellow Gold

Colleen B. Rosenblat Morganite Sapphire Rose Gold Cocktail Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
This amazing cocktail ring, set in 18k rose gold, comes along with a huge morganite 31,35 ct and a pair of sapphires 2,00 ct on the sides.
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Morganite, Sapphire, 18k Gold, Rose Gold

Colleen B. Rosenblat Tanzanite Amethyst Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
Earrings in 18k white gold with two tanzanite 3.81 ct and two amethyst 15.24 ct. Designed by Colleen B. Rosenblat
Category

Early 2000s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Amethyst, Tanzanite, 18k Gold, White Gold

Colleen B. Rosenblat Green Tourmaline Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
This Ring,set in 18k white gold, captivates with a garden green tourmaline 12.14 ct. It is designed by Colleen B. Rosenblat.
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Tourmaline, 18k Gold, White Gold

Colleen B. Rosenblat Tourmaline Rubellite Aquamarine Gold Scarab Collier
By Colleen B. Rosenblat
Located in Hamburg, DE
This colorful collier with scarab pendants in 18k white gold with big cabochons as tourmalines, rubellites and aquamarines stands in the old Egypt for a lucky charm with the traditio...
Category

2010s German Egyptian Revival Colleen B. Rosenblat Jewelry

Materials

Aquamarine, Rubelite, Tourmaline, 18k Gold, White Gold

Colleen B. Rosenblat Zircon Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
This shape is one of the favored in our middle ages collection. A blue vibrant and breathtaking zircon 10.93 ct adorns the 18k white gold setting. Ring size: 57
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Zircon, 18k Gold, White Gold

Colleen B. Rosenblat Aquamarine Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
This square setting is very modern and enhances the mirrored cut aquamarine 33.4 ct. Designed by Colleen B. Rosenblat. Ring size: 57
Category

Early 2000s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Aquamarine, 18k Gold, White Gold

Colleen B. Rosenblat Peridot Aquamarine White Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
These 18k white gold earrings with two enticing peridots 17.55 ct and two shimmering aquamarine 3.55 ct are from the beautiful pure design by Colleen B. Rosenblat.
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Aquamarine, Peridot, 18k Gold, White Gold

Colleen B. Rosenblat Tourmaline Garnet Gold Scarab and Box
By Colleen B. Rosenblat
Located in Hamburg, DE
Box of Scarab with 22K yellow gold, 1 green tourmaline 212ct., 4 red garnet 3,24ct. and 4 green tourmaline 3,76ct.
Category

Early 2000s German Colleen B. Rosenblat Jewelry

Materials

Garnet, Tourmaline, 22k Gold, Yellow Gold

Colleen B. Rosenblat Keshi Pearl Diamond Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
The ring in 18k white gold, diamonds 1,59 ct. and a grey-pink keshi pearl is definitley an eye - cather.
Category

2010s German Modern Colleen B. Rosenblat Jewelry

Materials

Diamond, Pearl, 18k Gold, White Gold

Colleen B. Rosenblat Amethyst Rose Gold Cocktail Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
A timeless, glorious and high-class cocktail ring from the “Masterpieces” collection by Colleen B. Rosenblat. A amethyst of that size and colour is very rare.
Category

2010s German Modern Colleen B. Rosenblat Jewelry

Materials

Amethyst, 18k Gold, Rose Gold

Colleen B. Rosenblat Tourmaline Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
A glorious tourmaline-drop is set in this 18k white gold setting which is designed by Colleen B. Rosenblat.
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Tourmaline, 18k Gold, White Gold

Colleen B. Rosenblat Tourmaline Mandarin Garnet Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
Colleen B. Rosenblat designed this classic pair of tourmaline 23.13 ct and mandarine granet 13.22 ct earrings set in 18k rose gold. This earring put col...
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Tourmaline, Garnet, 18k Gold, Rose Gold

Colleen B. Rosenblat brilliant cut diamond gold bracelet
By Colleen B. Rosenblat
Located in Hamburg, DE
An extraordinary bracelet with the Rosenblat-logo. Altogether 1,219 brilliant-cut diamonds in light brown 7.63 ct. Designed by Colleen B. Rosenblat
Category

Early 2000s German Contemporary Colleen B. Rosenblat Jewelry

Materials

18k Gold, Rose Gold

Colleen B. Rosenblat amber sapphire gold earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
Elegant drop earrings with beautiful amber 17.01 ct and at the top are 24 yellow sapphires embedded with a weight of 22.33 ct. The bottom part is detachable and the upper part can be...
Category

Early 2000s German Colleen B. Rosenblat Jewelry

Materials

Amber, Yellow Sapphire, 18k Gold, 22k Gold, Yellow Gold

Colleen B. Rosenblat Diamond Gold Pendant
By Colleen B. Rosenblat
Located in Hamburg, DE
Everybody will love this pendant with 85 diamonds 5,22ct. A beautiful and pure design by Colleen B. Rosenblat.
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

Diamond, 18k Gold, White Gold

Colleen B. Rosenblat Ebony Diamond Gold Earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
One of a kind ebony earrings with cognac diamonds set in 18 carat white gold. designed by Colleen B. Rosenblat.
Category

Early 2000s German Colleen B. Rosenblat Jewelry

Materials

Diamond, 18k Gold, White Gold

Colleen B. Rosenblat Amethyst Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
A fascinating 26.26 ct amethyst is embedded in a 18kt rose gold setting and design by Colleen B. Rosenblat. This ring is an eye-catcher! Ring size: 56
Category

2010s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Amethyst, 18k Gold, Rose Gold, Gold

55 cm gold chain necklace
By Colleen B. Rosenblat
Located in Hamburg, DE
This 55 cm long and 2.6 mm wide chain is a perfect combination to the cross pendant with the 1stdibs reference number: LU3322966502
Category

2010s German Colleen B. Rosenblat Jewelry

Materials

18k Gold, White Gold

Colleen B. Rosenblat citrine amethyst gold earrings
By Colleen B. Rosenblat
Located in Hamburg, DE
These 18k white gold earrings with two enticing citrine 36,06 ct and two shimmering amethyst 5.18 ct are from the beautiful pure design by Colleen B. Rosenblat. With a length of 27.5...
Category

2010s German Contemporary Colleen B. Rosenblat Jewelry

Materials

Amethyst, Citrine, 18k Gold, White Gold

Colleen B. Rosenblat Mandarin Garnet Pave Sapphire Blackened Gold Ring
By Colleen B. Rosenblat
Located in Hamburg, DE
This spectacular Cocktail ring, is set in 18k blackened white gold paved with 412 intense orange Sapphires 9.1 ct and a magnificiant mandarine garnet 26.0 ct in the front. It is desi...
Category

2010s German Art Deco Colleen B. Rosenblat Jewelry

Materials

Garnet, Sapphire, 18k Gold, White 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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