Global leader in manufacturing diamonds, colored stones, jewelry & watchmaking for the most prestigious brands since 1960

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Countries
Served

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Craftspeople,
Gemologists & Experts

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Carats
Processed Annually

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Iconic Brands and
Retailer's Trusted Partner

Antwerp , Belgium
Rosy Blue NV
Geneva , Switzerland
DIATHEKE SA
Dubai
Rosy Blue Trading FZCO
Hong Kong
Rosy Blue Hong Kong Ltd.
Tokyo , Japan
Rosy Blue Ltd
New York , United States
Rosy Blue Inc
Shanghai , China
Rosy Blue Diamond Co. Ltd
Mumbai , India
Rosy Blue Pvt. Ltd.

THE JOURNEY OF BRILLIANCE

Where precision, heritage, and innovation come together to create lasting value.

ROUGH TRADING

ROUGH TRADING

DIAMOND MANUFACTURING

DIAMOND MANUFACTURING

POLISHED DIAMONDS

POLISHED DIAMONDS

GEMSTONES

GEMSTONES

JEWELLERY DESIGN AND MANUFACTURING

JEWELLERY DESIGN AND MANUFACTURING

KNOW MORE ABOUT OUR OPERATIONS

RECOGNIZED BY THE WORLD, TRUSTED BY THE INDUSTRY

#INTHESPOTLIGHT

WJI 2030 event with industry leaders

RELIVING TWO INSPIRING DAYS AT THE WJI 2030

WJI 2030 event with industry leaders

OFFICIAL APPROVAL OF OUR SCIENCE BASED TARGETS

WJI 2030 event with industry leaders

ROSY BLUE 2024 ANNUAL REPORT

Cut by Masters. Perfected by Innovation.

What began as a modest diamond cutting operation has grown into a worldwide presence across Antwerp, Mumbai, New York, Dubai, Hong Kong, and Bangkok, supported by state-of-the-art manufacturing, advanced technology, and time honored craftsmanship.

Our Accreditations

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Affiliation 2
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OEAffiliation 5
Affiliation 6
Affiliation 7

We believe in impact that goes beyond the stone

BEAUTY WITH RESPONSIBILITY

Ethical Sourcing

Ethical Sourcing

Integrity across every step from mine to market.

Environmental Responsibility

Environmental Responsibility

Crafting brilliance with care for the planet.

People and Communities

People & Communities

At Rosy Blue, responsibility guides every decision we make. From sustainability and ethical sourcing to community upliftment and education, our commitments shape a more transparent and thoughtful diamond journey.