Gems, Glitter & Glamour world’s of Crazy Diamonds founded by 3 Indonesian entrepreneur women since November 2019, Ferlin, Sherley are based in Rotterdam, Netherlands and Rika is in Jakarta, Indonesia.

Our main office is locating in the heart city centre of Rotterdam, while our manufacturers are in The Hague (Den Haag), The Netherlands and Jaipur, India.

We are working with passion. Our signature is combining diamonds with colorful gemstones with the highest quality gemstones and designer jewelry by circumventing conventional channels, designing jewelry in our state-of-the-art factory and engaging with customers directly.

We only work with custom made jewelry. all are handmade with best craftsmen and artisans.

Our prices are revolutionary, we start our collections from affordable price up to high price.

Our goal is to make our customers happy and make their dream come true


The Founders

Sherley Silvia Yahya Putri Kornaat
Co-Founder Crazy Diamonds Jewelry

Serial fashion entrepreneur

Experience in Fashion (clothing line and bags) and retail, export import from Asia to Europe.

Owner and Founder Bidadari bags

Awards: 2002, Miss Indonesia Finalist, represent Bengkulu Province.


Rika Amelia Singh
Co-Founder Crazy Diamonds Jewelry

An Engineer and serial entrepreneur

Board of Director at Making Name Production House.

Director of PT. Ayu Parahita Indonesia as supplier for Catering and Convection Business in Indonesia.


Ferlin Vermeer Yoswara
Co-Founder Crazy Diamonds Jewelry

CEO Market Your Jewelry B.V.  Netherlands

CEO EMEA of Ring Theory (Smart Wearable), Boston, USA

Ferlin’s artworks/ jewelries have been collected by Royal family of The Netherlands, world leaders, and museums

AwardS: Top 5 Ethnic Business Woman of The Netherlands 2018; won 40 international art awards in USA, Asia, Europe, and Australia and 155 art awards from Indonesia; She was art ambassador for Louis Vuitton, UNESCO, and UNICEF.


Crazy Diamonds, Shine ON!