Cattivo Jewelry is the brainchild of the collaborative couple Thomas Tjiong and Carman Un. since 2008. Over the past 13 years, we have designed and produced a multitude of successful jewelry collections for various international brands, and our works have been exhibited in Paris, Denmark, and Hong Kong.

“Cattivo” is an Italian word that means “bad”. It’s not a traditional way to name a jewelry company, but we believe that our services are changing the old industry practices, and unleash the creative powers of young designers in the new digital era. With the service we provided, we are hoping to incubate a new generation of jewelry designers and entrepreneurs who are capable of creating “wearable sculptures” that express the personality of the wearers all around the globe.



We aim to empower jewelry designers and entrepreneurs to develop their brands and scale their businesses via providing one-stop service and end-to-end manufacturing support. With over 14 years of experience in the field of jewelry, we have been consistently delivering one-stop services to jewelry designers all around the world. You can focus on developing the creatives, while we will take care of the production steps and logistics.



We pride ourselves in our innovative integration of jewelry designs and production processes, as well as our outstanding customer services provided to all customers. They are recognised by our qualifications of SMETA by SEDEX, certified by ISO 9001:2015. Our factory is also a member of the Responsible Jewellery Council (RJC). Our production facilities are strictly in compliance with the international regulations, examplifying our commitment to the industrial-leading environmental, safety, and labour standards.



Cattivo is much more than a jewelry manufacturer. We disrupt the jewelry manufacturing industry by taking a few steps further – we follow the world’s latest design trends closely and actively advise designers on jewelry designs.

Combining our trend insight and fine craftsmenship, we are working with jewelry designers around the globe for a wide range of collections following the most updated fashion trends.



At Cattivo, we believe that the foundation of our jewelry brand and services are our values, which distinguish us from others and guide our actions. Over the years, we have been committed to creating jewelry ethically and responsibly by adopting sound environmental practices to make our Earth a more sustainable place. We use 100% recycling silver, opt for biodegradable packaging, and adopt sustainable practices in our production process.  These values are rooted in Cattivo’s history, heritage and character, and help us meet our purpose.

Start making jewelry with us

Check out how we work and take a look at our online catalogue now.