DIALLURE Inc. (Formerly EMINA Inc.)
NEUK Shirokanetakanawa 206
1-20-2 Takanawa, Minato-ku
Tokyo 108-0074, Japan
Mariko Yanaka
August 2015
+81-3-4413-1113
info@diallure.co
Planning and sales of engagement and wedding rings using lab-grown and natural diamonds,
as well as in-person customer service.
Japan Laboratory-Grown Diamond Association; Japan Grown Diamond Association
In recent years, diamonds are chosen not only for their beauty, but also for their origins—the background and story of how they came to be.
At DIALLURE, we believe in a new standard that embraces ethical integrity, environmental commitment, and a vision to make diamonds more accessible to everyone.
Our dedication to these values has earned recognition within the industry, including features in leading jewelry publications.
Yet, our true compass remains the same: the profound emotion we felt when we first held a lab-grown diamond.
That encounter inspired us to open a door to a world where a wide variety of diamond shapes—still rare in Japan—can be enjoyed freely and closely.
DIALLURE will continue to create value in step with the times,
striving to remain a truly special presence for our customers.
We sincerely appreciate your continued support and patronage.
In recent years, diamonds are chosen not only for their beauty, but also for their origins—the background and story of how they came to be.
At DIALLURE, we believe in a new standard that embraces ethical integrity, environmental commitment, and a vision to make diamonds more accessible to everyone.
Our dedication to these values has earned recognition within the industry, including features in leading jewelry publications.
Yet, our true compass remains the same: the profound emotion we felt when we first held a lab-grown diamond.
That encounter inspired us to open a door to a world where a wide variety of diamond shapes—still rare in Japan—can be enjoyed freely and closely.
DIALLURE will continue to create value in step with the times, striving to remain a truly special presence for our customers.
We sincerely appreciate your continued support and patronage.

CEO / Brand Director
Mariko Yanaka
After graduating from Waseda University, she spent approximately a decade working overseas.
In 2015, she founded her own company and began developing businesses in the bridal sector.
Recognizing the potential of lab-grown diamonds at an early stage,
she launched DIALLURE—a brand that delivers ethical, high-quality diamonds at accessible prices. Through a direct-to-consumer model that eliminates intermediaries, she aims to establish a new industry standard.
In 2024, she was selected for the 9th cohort of ‘APT Women,’ a Tokyo Metropolitan Government program supporting the growth of women entrepreneurs.
After graduating from Waseda University, she spent approximately a decade working overseas.
In 2015, she founded her own company and began developing businesses in the bridal sector.
Recognizing the potential of lab-grown diamonds at an early stage, she launched DIALLURE—a brand that delivers ethical, high-quality diamonds at accessible prices. Through a direct-to-consumer model that eliminates intermediaries, she aims to establish a new industry standard.
In 2024, she was selected for the 9th cohort of ‘APT Women,’ a Tokyo Metropolitan Government program supporting the growth of women entrepreneurs.
Follow Us:
@diallure_diamondBook an Appointment