Diamonds are forever.
Suppliers can be too.
Diamonds are forever. Suppliers can be too.

A love of diamonds has driven 28 years of excellence. Over the years we have earned a position as a preferred supplier to the world’s most prestigious jewellery and timepiece maisons. With offices holding inventory in Paris, Genève, and New York, and a directly owned polishing atelier in Jaipur, India, we combine senior leadership close to our maison clients with full control over our manufacturing, ready to serve our global clientele.

30% of our team have been with Excellent Facets since the start of the journey, and 100% of us share an unwavering commitment to excellence, proven by industry-leading quality standards, under-2% return rates, and over 99% early or on-time deliveries.

As an industry leader, we supply our partners with a curated selection of finely cut natural mêlée diamonds from 0.60 mm to 3.80 mm. Alongside mêlée, we specialize in fancy color diamonds and unique stones, including a large inventory of pink diamonds sourced from Australia’s renowned Argyle mine.

Our History

1984

1984

Deepak arrives in the United States and joins a De Beers sightholder as a trainee. Over the next 10 years, he built his book of accounts selling VVS to I2 clarity diamonds in colors D to Z to many of the top 50 retailers, jewelry manufacturers and diamond wholesalers in North America.

1997

1997

Deepak starts his own business, Excellent Facets, with a sole focus on selling top-quality melee diamonds to the most quality-conscious maisons. He saw the potential of long-term relationships and customer satisfaction and felt an independent company would be the best structure to align with customer needs and his personal strengths over the long-term.

2003

2003

We became a Rio Tinto Select Diamantaire and received our first rough allocation from its Diavik Mine in Canada, which we sought in order to have a mine-to-market supply chain. This rough produced polished diamonds of 0.30cts to 2.00cts. We used it to cut custom shaped stones for customers. We worked as a Select Diamantaire until 2009, at which point the custom shaped project was completed. We initially polished the Rio Tinto rough in our Bangkok factory. After shutting the factory down, we moved manufacturing to a third-party audited and socially compliant factory in Qingdao Province, China.

2009

2009

As a customer of Rio Tinto Diamonds, we were given the opportunity to purchase pink diamonds directly from Australia’s Argyle Mine via tender. We were impressed with the mine’s incredible provenance and the beauty of its treasures. This marked our entry into the fancy color diamond business. From here, we expanded into other rare and important stones, both in fancy color and in white. Today we have a large inventory of Argyle pink diamonds, along with other important fancy color diamonds.

2023

2023

Amay Sheth, Deepak’s son, wound down the software company that he founded in order to join the family business. Amay was always excited about Deepak’s vision of a mine-to-market supply chain, and believed the time was right to implement it more thoroughly with traceability involved. He is also passionate about sustainability, and one of his first initiatives was auditing Excellent Facets existing emissions and investing in renewable energy projects to offset those emissions, making the company net zero for 2023.

2025

2025

Amay relocates to Paris to open Excellent Facets' second headquarters at 10 Place Vendôme, bringing inventory closer to the maisons for same-day delivery. He builds a local, French-speaking team to support existing and new maison relationships, deepening the company's presence at the heart of the European luxury market.

1995

1995

Deepak establishes his first recurring business of top-quality melee diamonds (0.18cts and below) with top maisons in North America. He realizes that this business is perfectly suited to his strengths because of the attention to detail and precision in grading required.

2002

2002

We started to manufacture our own melee diamonds, rather than solely buying polished from the market, in order to ensure compliance with local labor laws and promote a better work environment. This was accomplished by both starting our own diamond cutting and polishing factory in Thailand, which we later closed down, as well as by working with manufacturing subcontractors.

2004

2004

As part of our commitment to precision, we were early adopters of Sarine technologies for the measurement of each melee diamond’s table, depth, facet angles, and girdle thickness. This optimized the brilliance of each stone. We continue to evaluate and implement new technology in order to optimize polished outcomes, as well as to ensure each and every diamond entering our inventory is 100% natural.

2016

2016

We purchased two of the most important diamonds in the history of North America. One was the Diavik Foxfire, which was the largest white diamond mined in North America, weighing over 187 carats. The other was the Radiant North, which was the largest fancy color diamond mined in North America at the time. The Diavik Foxfire was exhibited at the world-renowned Smithsonian Institute in Washington, DC for three months, where it was placed next to the famous Hope Diamond.

2024

2024

Excellent Facets establishes a Swiss company and builds a local team to serve timepiece maisons, adding traceable cut-to-measure baguettes to its established expertise in finely calibrated round brilliant mêlée. The Genève office brings inventory and a dedicated point of contact close to our Swiss clients.

2026

2026

Excellent Facets opens a tech-enabled atelier in Jaipur, India, specializing in finely calibrated fancy shapes under 0.75 carats, cut-to-measure, custom cuts, and round brilliants. It is one of the few producers to handle these categories fully in-house, offering maison clients the confidentiality and discretion their most sensitive projects require.

1984

Deepak arrives in the United States and joins a De Beers sightholder as a trainee. Over the next 10 years, he built his book of accounts selling VVS to I2 clarity diamonds in colors D to Z to many of the top 50 retailers, jewelry manufacturers and diamond wholesalers in North America.

1995

Deepak establishes his first recurring business of top-quality melee diamonds (0.18cts and below) with top maisons in North America. He realizes that this business is perfectly suited to his strengths because of the attention to detail and precision in grading required.

1997

Deepak starts his own business, Excellent Facets, with a sole focus on selling top-quality melee diamonds to the most quality-conscious maisons. He saw the potential of long-term relationships and customer satisfaction and felt an independent company would be the best structure to align with customer needs and his personal strengths over the long-term.

2002

We started to manufacture our own melee diamonds, rather than solely buying polished from the market, in order to ensure compliance with local labor laws and promote a better work environment. This was accomplished by both starting our own diamond cutting and polishing factory in Thailand, which we later closed down, as well as by working with manufacturing subcontractors.

2003

We became a Rio Tinto Select Diamantaire and received our first rough allocation from its Diavik Mine in Canada, which we sought in order to have a mine-to-market supply chain. This rough produced polished diamonds of 0.30cts to 2.00cts. We used it to cut custom shaped stones for customers. We worked as a Select Diamantaire until 2009, at which point the custom shaped project was completed. We initially polished the Rio Tinto rough in our Bangkok factory. After shutting the factory down, we moved manufacturing to a third-party audited and socially compliant factory in Qingdao Province, China.

2004

As part of our commitment to precision, we were early adopters of Sarine technologies for the measurement of each melee diamond’s table, depth, facet angles, and girdle thickness. This optimized the brilliance of each stone. We continue to evaluate and implement new technology in order to optimize polished outcomes, as well as to ensure each and every diamond entering our inventory is 100% natural.

2009

As a customer of Rio Tinto Diamonds, we were given the opportunity to purchase pink diamonds directly from Australia’s Argyle Mine via tender. We were impressed with the mine’s incredible provenance and the beauty of its treasures. This marked our entry into the fancy color diamond business. From here, we expanded into other rare and important stones, both in fancy color and in white. Today we have a large inventory of Argyle pink diamonds, along with other important fancy color diamonds.

2016

We purchased two of the most important diamonds in the history of North America. One was the Diavik Foxfire, which was the largest white diamond mined in North America, weighing over 187 carats. The other was the Radiant North, which was the largest fancy color diamond mined in North America at the time. The Diavik Foxfire was exhibited at the world-renowned Smithsonian Institute in Washington, DC for three months, where it was placed next to the famous Hope Diamond.

2023

Amay Sheth, Deepak’s son, wound down the software company that he founded in order to join the family business. Amay was always excited about Deepak’s vision of a mine-to-market supply chain, and believed the time was right to implement it more thoroughly with traceability involved. He is also passionate about sustainability, and one of his first initiatives was auditing Excellent Facets existing emissions and investing in renewable energy projects to offset those emissions, making the company net zero for 2023.

2024

Excellent Facets establishes a Swiss company and builds a local team to serve timepiece maisons, adding traceable cut-to-measure baguettes to its established expertise in finely calibrated round brilliant mêlée. The Genève office brings inventory and a dedicated point of contact close to our Swiss clients.

2025

Amay relocates to Paris to open Excellent Facets' second headquarters at 10 Place Vendôme, bringing inventory closer to the maisons for same-day delivery. He builds a local, French-speaking team to support existing and new maison relationships, deepening the company's presence at the heart of the European luxury market.

2026

Excellent Facets opens a tech-enabled atelier in Jaipur, India, specializing in finely calibrated fancy shapes under 0.75 carats, cut-to-measure, custom cuts, and round brilliants. It is one of the few producers to handle these categories fully in-house, offering maison clients the confidentiality and discretion their most sensitive projects require.

Our Team

NO PRESSURE, NO DIAMONDS.

“30% of our team have been at Excellent Facets since its inception, 100% of us have an unwavering commitment to excellence.”

Deepak Sheth
President, Excellent Facets

Deepak Sheth

Deepak Sheth founded Excellent Facets in 1998 to serve the world’s most prestigious jewellery and timepiece maisons. Drawing on decades in the diamond trade, he leads the company as President, guiding its sourcing relationships, manufacturing standards, and long-term partnerships with the maisons it supplies.

Amay Sheth

President, Excellent Facets SAS, SA, and Pvt Ltd

Amay Sheth

Amay Sheth drives strategic operations, focusing on partnerships with luxury brands, supply chain technology for diamond tracing, and high-quality diamond procurement. He curates fancy-color diamonds while promoting global sustainability. Before Excellent Facets, he founded Retentive, a software startup, and previously worked in hedge funds. Amay holds a BA in Economics from the University of Chicago and enjoys supporting Arsenal Football Club and walking his Pomeranian, Oreo, along the Hudson River.

Rajesh Butala

Chief Financial Officer

Rajesh Butala

Rajesh, with over 35 years of experience, leads accounting and profit-and-loss calculations and is also involved in people management. Born and raised in India, Rajesh has certifications including a Certified Public Accounting & Internal Auditor designation in the United States of America, a Bachelor of Accounting, a Chartered Accountant designation in India and a Cost Accountant designation in India. He is proficient in Quickbooks, Peachtree & Various other accounting and tax software. His deep understanding of accounting and management skills makes him a trusted professional to collaborate with. In his free time, he prioritizes international travel with his family.

Nawroze Daroowalla

Diamond Sales & Grading

Nawroze Daroowalla

Nawroze is a seasoned diamond industry professional and a Graduate Gemologist with 25 years of experience. With an extensive knowledge of jewelry production and diamond grading and a special interest in natural fancy color diamonds. He loves gardening and music.

Jasmine Pradhan

Compliance Manager

Jasmine Pradhan

Jasmine is a dedicated professional with over 15 years in the diamond industry, excels in customer service and compliance, integrating ESG principles seamlessly. She is recognized as a valuable team player, fostering collaboration and synergy within her team. She has a background in accounting and business. Outside of work, she enjoys hiking and swimming.

Thien Nguyen

Inventory Controller

Thien Nguyen

Thien, with over 35 years of experience, combines diamond manufacturing, software management, and testing expertise to advance the diamond industry through innovation and excellence. His deep understanding of production and technology makes him a trusted professional to collaborate with. Additionally, he loves photography.

Laura Lu

Head of Quality Control

Laura Lu

Laura is a diamond buyer and quality control specialist with over 30 years of experience. As a master gemologist, Laura has deep knowledge of rough diamond grading as well as unparalleled expertise in grading fine quality natural melee diamonds. She enjoys cooking and shopping.

Jalal Ahmed

Diamond Grading

Jalal Ahmed

Jalal is a self-motivated individual with 30 years of experience in the diamond industry. Jalal has extensive knowledge of jewelry manufacturing and is an expert diamond color grader. In his free time, Jalal enjoys gardening and cooking.

Nathan Bensoussan

Sales and Quality Manager, France

Nathan Bensoussan

Based in Paris, Nathan leads customer relations in France, focusing on customer happiness, longterm relationships, and final quality control of inventory. He also supports Swiss clients with technical
questions and quality control, serving as a second point of contact to ensure continuity.

Nathalie Bonvin

Sales Director, Switzerland

Nathalie Bonvin

Based in Switzerland, Nathalie brings over 25 years of experience working with Swiss timepiece
maisons. She builds long-term customer relationships while working closely with manufacturing and
order fulfilment, and serves as a second point of contact for French clients to ensure continuity.

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Our Values

VALUES ARE A TEAM’S BEST FRIEND.

Integrity

Integrity is earned, and we will never stop working towards it. 26 years in this business are made possible by promises made and promises kept. It's simple, we do what we say we are going to do.

Customer-first

Our purpose is to make our customers' lives easier. We work backward from their needs, ensuring their experience is the best one possible.

Rigorous Quality Control

Not a single stone leaves our facility without rigorous quality control. Never. We have earned our near-zero rejection rate.

Make it swift, make it consistent

We understand you have priorities to honor, deadlines to meet, and orders to fill. Work with us to never slow down, and always deliver on quality. You can rely on our unfailing delivery times and near-zero rejection rate. Make it swift, and make it consistent.

The finer the detail, the finer the diamond

When it comes to rare diamonds - details make perfection. During our cutting process, we use precise angles within stringent ranges to ensure the optimal optical qualities of each stone.

Sustainability.

WE CARE.

At Excellent Facets, we recognize that sustainability is non-negotiable. Our dedication to sustainability influences every aspect of our business.

We are proud to have been certified carbon neutral since 2023, with 2024 certified and 2025 in progress.

Our responsible sourcing practices ensure transparency, with all diamonds accompanied by their mine of origin disclosed and uploaded to iTraceiT, a blockchain-based and tamper-proof traceability solution.

Furthermore, our India-based manufacturing facility undergoes regular audits for social compliance.

As early adopters of ethical practices, we were among the first companies in North America to attain certification from the Responsible Jewelry Council. Additionally, we actively participate as members of the Watch & Jewelry Initiative 2030, committed to shaping the future of our industry through sustainable practices.

Our Affiliations