India, 15th September 2026: QWEEN, India’s first self-discovery, 100% natural experiential luxury jewellery brand, has detailed the strategic roles of Rosy Blue and Kashikey in powering its product proposition. Beyond being investors in the brand, Rosy Blue and Kashikey serve as QWEEN’s core supply-chain and craftsmanship partners, respectively, bringing together traceable access to 100% natural diamonds and nearly a century of Japanese craftsmanship expertise.
You know the diamond. But do you know its journey?
As QWEEN’s single strategic supply-chain partner, Rosy Blue brings over six decades of diamond expertise and sourcing capabilities to the brand. This partnership enables QWEEN’s Mine to Marvel™ initiative, allowing consumers to trace their diamonds back to their mine of origin.
At QWEEN, the story behind the stone is as important as the sparkle you see. And not every diamond makes it into a QWEEN.
Only 0.03% of the world’s diamonds that enter QWEEN’s selection process meet its exacting standards. Every QWEEN diamond is 100% natural and perfectly cut, meeting the Hearts & Arrows standard. At the QWEEN store, consumers can see that precision for themselves through specialised viewers.
“At Rosy Blue, we believe that trust must be established across the entire value chain. Our partnership with QWEEN brings together exceptional natural diamonds, greater traceability and consistent product standards, giving consumers greater visibility into the journey of their diamond and a clearer understanding of what makes it exceptional,” said Ms. Manali Jayant Parekh, Director, Rosy Blue.
But knowing the diamond is only half the story. What happens to it next matters just as much.
QWEEN’s strategic craftsmanship partner, Japanese luxury jewellery house Kashikey, brings nearly a century of jewellery-making expertise to the brand. Founded in 1928,
Kashikey’s craftsmanship informs the construction, setting and finishing of QWEEN jewellery.
A QWEEN jewel is made by 131 pairs of masterful hands. From planning, cutting and polishing to setting and quality checks, every pair brings a decade or more of specialised expertise to the piece before it reaches the woman who wears it.
That attention to detail extends to the smallest elements of the jewellery. One example is QWEEN’s four-prong setting, which leaves more of the diamond visible than a conventional six-prong setting while keeping it securely held.
“For nearly a century, Kashikey has pursued beauty through precision, balance and attention to detail. Our partnership with QWEEN brings this approach to jewellery created for the modern Indian woman, where every element, from the setting to the finish, is considered to enhance the beauty of the diamond while preserving the integrity of the piece,” said Mr. Hisao Kato, Chairman, Kashikey Co. Ltd.
“For us, these partnerships go well beyond investment. Rosy Blue, as our single strategic supply-chain partner, gives us the ability to build traceability, consistency and rigorous selection standards into every QWEEN diamond, while Kashikey brings decades of craftsmanship and precision to how we turn those diamonds into jewellery. We wanted all of that to be part of the product itself, so women can see and understand what makes a QWEEN piece different,” said Amit Kumar, Co-founder and CEO, QWEEN.
From knowing where the diamond came from to understanding how precisely it was cut and how carefully it was crafted, QWEEN is building a jewellery experience where trust is not just a promise.
It is something you can see for yourself.
With Rosy Blue as its single strategic supply-chain partner and Kashikey as its strategic craftsmanship partner, QWEEN brings together diamond expertise, traceability and nearly a century of Japanese craftsmanship to set a new standard for the jewellery a woman chooses to wear.
About QWEEN
QWEEN is India’s first self-discovery experiential luxury jewellery brand, redefining jewellery shopping for the modern Indian woman by replacing intimidation with the joy of exploration. Through accessible, open displays, 100% natural gemstones and diamonds across 16+ collections and 3,000+ SKUs, and full Mine to MarvelTM transparency, the brand challenges antiquated norms that kept jewellery occasion-bound and restricted behind glass counters. With Rosy Blue as its single supply chain partner, alongside luxury jewellery house Kashikey Co. Ltd. and strategic investors Aamir Khan and Ranbir Kapoor, QWEEN is building a culturally relevant luxury universe rooted in trust, design, and the evolving identity of the contemporary Indian woman.
For more information, visit www.qween.com
About Rosy Blue
Rosy Blue is one of the world’s foremost diamantaires founded in 1960 by Arunkumar Mehta, with a deep commitment to responsible sourcing, traceability, and excellence from rough diamond to finished jewelry. The company, now a leader in diamond manufacturing, trading, and retail, is known for its ethical practices and global presence, with operations in over 10 countries. https://www.rosyblue.com/
About Kashikey
Founded in 1928 by Hidetaka Kato, Kashikey is a family-owned Japanese luxury jeweller, renowned for its expertise in brown diamonds. The brand is involved in every stage of the process from sourcing raw materials (diamonds, conch pearls, etc.) to design, production, branding, and sales. With strict quality control, in-house expert craftsmanship, and an extensive gemstone collection, Kashikey showcases exceptional jewelry design, featuring pieces suited for both everyday wear and special occasions. For more details, visit https://kashikey.com/
