US Jewelry Manufacturers

The Leading Jewelry Manufacturers and Suppliers

Established in 1983 by a small group of distinguished jewelry manufacturers in the USA, The Plumb Club has become one of the leading go-to supplier organizations for jewelry suppliers. Today, The Plumb Club is a unique coalition of leading, responsible and important suppliers spanning all facets of the jewelry, diamond and watch industries. The Plumb Club’s membership accounts for a significant percentage of the domestic fine jewelry market.

All Plumb Club members adhere to very high standards of conduct on a personal and professional level. Members are also asked to sign the Plumb Club “Code of Responsibility” annually, agreeing to uphold high standards of integrity, ethics, morals, and honesty. This enables retailers and manufacturers to collaborate in an environment of respect and integrity.

Responsible Jewelry Council

In 2019, members of the Plumb Club collectively decided, in the spirit of solidarity, to make it mandatory for all members to become certified members of the Responsible Jewelry Council. The vote was unanimous, uniting us through undivided support of our mission and vision.

Why is it so important that Plumb Club members also become a part of the Responsible Jewelry Council? Because the RJC is the most respected leader in the jewelry and timepiece industry, when it comes to setting standards.

Members help the RJC make the industry – and world – a more responsible and sustainable place, contributing to a brighter future where everyone in the industry can work towards the same goals that unite and bind us.

About the TPC-365 platform

The jewelry manufacturers and jewelry suppliers who form The Plumb Club and populate it’s TPC-365 platform agree that joining was one of the most important decisions they’ve made for their business. The TPC-365 virtual sales meeting platform empowers retailers to better control how they shop for and view jewelry online, viewing inventories anytime and anywhere in astonishing detail. In addition TPC-365 will house an impressive array of jewelry knowledge, consumer insights, trend information and industry learning in its TPC-365 resource center.

The TPC-365 platform was developed and customized exclusively for Plumb Club members. The sales platform reaches beyond the limitations of traditional video conferencing software. Users enjoy all of the perks of an in-person meeting, amplified by the ability to collaborate anytime, anywhere, on any device.

Accordion Content
  • The CH Hakimi family is synonymous around the globe for producing essential core program items specific to buyer needs for over 30 years.
  • IMPERIAL Pearl – has become the pre-eminent global source not only for the finest pearls crafted by nature’s hand, but also for the most beautiful classic and contemporary pearl jewelry crafted by the hand of man.
  • Mastoloni is one of the most trusted and respected pearl-industry veterans; a company known worldwide for its ability to supply virtually any cultured pearl desired. An innovator with a reputation for quality forged over decades of experience, Mastoloni has a heritage of which all can be proud.
  • Founded in 1986, Sandeep Diamond corporation caters to major retailers in the United States and Latin America. Its core expertise roots in diamond bridal products while rapidly expanding to different jewelry areas such as diamond fashion, natural gemstones (semi precious, precious, exotic) and lab-created diamonds.
  • The Jasani Group is a vertically integrated company with expertise in all facets of the diamond industry, from rough diamond trading to state-of-the-art diamond manufacturing, global distribution, jewelry manufacturing and marketing of branded jewelry.
  • KP Sanghvi was founded on May 10th 1965, and since then, the company has dedicated itself to the art of perfection in craftmanship, a dedication that shows in its products, its ethics and in its people; a dedication that has steered the company over the past five decades
  • Wilkerson Express, the jewelry division of Wilkerson, offers a new delivery jewelry line defined by exciting designs and value that lets you maximize your margins. Our goal is to bring quality fine jewelry to retailers with prices behind the traditional manufacturer. With extended terms, discounts for early payment, hassle free stock balance, and incredible buying power, we achieve our goal. Enjoy the speed, quality, and service you deserve, backed by the experience and reputation of Wilkerson.
  • Leo Schachter Diamonds is regarded by industry experts as one of the most innovative and enduring diamond enterprises in the world. Founded in 1952, they are a leading supplier to America’s major jewelry chains.
  • Founded in 2019, CHIC PISTACHIO is the brainchild of over 100 years of combined experience in the jewelry industry to create a company that has access to all the latest technology and manufacturing to create brands with worldwide appeal.
  • Chatham is the world’s leader in lab-grown gemstones, creating the finest quality sapphires, emeralds, rubies, diamonds and a rainbow of other gems set in unique jewelry designs that are always stylish and never mined.
  • As part of the Hari Krishna Group, H.K. Designs is a vertically integrated company known for pioneering innovations and creating cutting-edge designs. Established in 2003, the company is known for creating and supplying an extensive range of diamond and gemstone jewelry to retail chains, department stores, wholesalers, and online merchants from various parts of the world. The company has also recently introduced a Lab Grown Diamond division called Craft Lab Grown Diamonds.
  • Award winning master designer and founder, Samuel Behnam brings more than thirty years of art and jewelry experience to The Samuel B. Collection. Samuel blends traditional Balinese and Thai craftsmanship with contemporary style so that every jewel represents an innovation in jewelry design.
  • Benchmark is a USA based manufacturer located in Tuscaloosa, Alabama. Benchmark was founded in 1973. Benchmark precision manufactures all precious metals and select boutique contemporary metals. Benchmark focuses on design, speed of delivery, ease of use and strong marketing support.
  • Indigo Jewelry, Inc., a wholly-owned subsidiary of the S. Vinodkumar Group of companies, is one of the most renowned diamond and jewelry companies in the world. Their ability to cater to their customer’s needs in both rough and polished diamonds as well as fine diamond jewelry has enabled them to create long-lasting partnerships.
  • Diamour is a family-owned multinational diamond jewelry organization that is in an industry leader in product development and design. Three generations have maintained a tradition of innovation, integrity, and value. Diamour’ s expansive range of fine jewelry offerings include bridal rings, fashion rings, bracelets, necklaces, pendants, earrings, and men’s rings.
  • In operation collectively for over 100 years, amassing decades of industry knowledge and connections that prepare them to navigate the present and forecast the future. iStar maintains the highest level of integrity in every step of their business. They believe creativity, innovation, technology, and collaboration are paramount to their success, and incorporate these aspects into their company culture. iStar Jewelry is an RJC certified member. iStar is comprised of Stanley Creations, Candela Jewelry, and Roman and Sunstone.
  • After four decades in the diamond and jewelry industry, the Shah Luxury Group boldly emerges a better company: a leader in pushing the boundaries of technology, innovation, and design. They strive to produce world-class jewelry that not only appeals to the most discerning clients in the United States and Canada, but to those in markets across the globe.
  • SDC Designs LLC is a leading designer, manufacturer, and wholesaler of fine jewelry. Specializing in private label and designer brands, SDC is a fourth generation diamantaire. SDC Designs is committed to innovation. Our goal is to provide our customers with differentiation in the marketplace and create long term relationships by researching, identifying and developing new opportunities.
  • The Goldman family tradition of excellence spans a period of over seventy years. Frederick Goldman founded his company in 1948 as a one-man operation in New York City specializing in wedding rings. Since then the company has grown to become one of the largest privately held jewelry manufacturers in North America offering its customers a large selection of fine jewelry products across multiple divisions, brands and distribution channels.
  • With over 70 years in the jewelry industry, CARL K. GUMPERT, INC. is a major fine jewelry manufacturer and diamond supplier, providing its customers with individualized manufacturing services and outstanding quality and value.
  • Amassing a cumulative trade experience that transcends over four decades, Goldstar Jewellery, has firmly etched itself as a preferred supplier to most Major National and Multi-National retail jewelry brands.
  • IDD has a stellar reputation as the quintessential partner for regional jewelry chain stores and independent jewelry retailers across North America. IDD has developed the reputation as the “go to” supplier for diamond basics. IDD is the trusted supplier to thousands of retailers nationwide for basic jewelry programs, best-selling bridal, as well as curator of industry’s best consumer finance program.
  • R. Cobb Company has been a fundamental part of the jewelry industry since 1877 and has the widest range inventory of bridal jewelry, loose certified diamonds, and marketing solutions available to jewelry retailers.
  • Established in 1995 Uni-Design USA caters to its clients around the world with dedicated diamond jewelry manufacturing facilities in India and China. With direct access to a consistent supply of diamonds at the most competitive prices, Uni-Design USA enjoys certain advantages of making jewelry for different markets of the world within the shortest time frames.
  • Asian Star, one of the world’s leading diamantaires, has established a formidable reputation over the last five decades amongst global jewelry brands and retail jewelry chains owing to our deep-rooted values and passion to excel.
  • Established in 1994, F.D. Worldwide Merchandise Group is a privately owned company with vertical alliance offices in New York, Hong Kong and Panyu, China. They pride themselves on being a dependable supplier-partner for fine jewelry wholesalers and retailers worldwide. Their customers span across the globe from North America, Australia, New Zealand, Russia, Europe, and China.
  • Original Designs, celebrating sixty years in business, is your trusted source for diamond bridal and fashion jewelry. Original Designs is a member firm of the Tache Alliance, a group of leading diamond and fine jewelry companies, operating in 20 countries on five continents.
  • Established in 1998, KGS Jewels is a family-owned and operated diamond and Jewelry manufacturing company with a global presence in the Jewelry industry. Like the importance of every facet of a diamond they approach each facet of the business with dedication and purpose to provide quality product and services worldwide.
  • From the humble beginnings of a Norwegian immigrant’s small jewelry shop to its status today as one of the leading manufacturers of bridal and fashion jewelry, Ostbye has always stayed true to its mission of exemplary quality, service, and value.
  • SHEFI was established in 1975 by Mr. Dharam Chand Hirawat. Widely known as knowledgeable, honorable and true to his work, Mr. Shefi grew his loose business and later developed into one of the industry’s most respected jewelry manufacturers. Today, with offices in India, China and New York, SHEFI is recognized as a dependable, state-of-the-art consistent supplier that ultimately understands the retailer’s needs.
  • EMA Jewelry Inc began doing business in 1977 and over the years has grown into a leading manufacturer of both gemstone and diamond jewelry. They have factories in Mexico and Asia, which allow them to control both the quality and efficiency of their jewelry. They supply national and regional chains, as well as independent jewelers.
  • Aneri Jewels is one of the major jewelry manufacturers and distributors in North America. Since 2009, their business values expert craftsmanship and maintains its emphasis on the use of state-of-the-art factories, the latest technology, and quality control systems all of which guarantee efficiency and attention to detail.
  • Quality Gold (QG) is a worldwide company offering more than 165,000 jewelry & gift items in stock and available to ship same day and more than 150,000 special order items for purchase by retailers.
  • Cynergy Trading Corp is the wholly owned North American arm of Creations Jewellery Pvt Ltd, based in the SEEPZ zone in Mumbai India.  We have been manufacturing diamond jewelry since 2000. They design and manufacture diamond bridal and diamond fashion jewelry in gold, silver and platinum. Their clients include major and regional retailers, online retailers and wholesale accounts.
  • MJJ Brilliant has been in business for 30 years. They are widely recognized as the leading manufacturer of Fine Fashion Jewelry in the United States, which includes earrings, rings, pendants, necklaces, bracelets and gents jewelry in gold-diamond, silver-diamond and gemstones.
  • For over 60 years, The Kingswood Company has been the leading innovator in high-quality, private-label jewelry care products. Today, they bring you superior customer service; sophisticated packaging that will define your brand; and private-label jewelry cleaners and polishing cloths that are unparalleled in look and function.
  • Using the most advanced distribution systems, allied with the utmost human vigilance, Rosy Blue monitors every diamond passing through the manufacturing and finishing process, assuring their customers and partners of the integrity of all their stones. Their processes are also independently verified through our membership of the Forevermark programme in several of our operations.
  • The Marathon Company is a privately held, third generation family business founded in 1897. The company serves independent jewelers and large jewelry store chains. Marathon is the leading manufacturer of children’s jewelry in the U.S.A. The brand names, Kiddie Kraft and LeStage, are well known and trusted in the marketplace. Marathon also manufactures fine Sterling Silver baby gifts such as cups, spoons, and rattles.
  • JAFFE’s legacy dates back to its founding in 1892. The brand’s rich heritage spans across the Jazz Age and Art Deco period, through two world wars and into a new millennium. The historic American bridal designer is recognized for its iconic Signature Shank™ and Quilted Interior™ design features that provide superior balance, a luxurious feel and minimize twisting of the ring on the finger.
  • Gemological Science International (GSI) is the only major gemological organization established in the 21st century. Founded in 2005 in New York City, it has grown to become one of the largest gemological entities in the world with laboratory facilities spanning four continents.
  • Established in 1979, a second generation family owned and operated business – Ryan Gems began as loose gemstone distributors. By popular retail demand, Ryan Gems, Inc. transformed into an industry leader and one of the most trusted manufacturers of Fine Gemstone & Diamond Jewelry.
  • Mastoloni is one of the most trusted and respected pearl-industry veterans; a company known worldwide for its ability to supply virtually any cultured pearl desired. An innovator with a reputation for quality forged over decades of experience, Mastoloni has a heritage of which all can be proud.
  • Established in 1965, Carla Corporation has been serving both small and large retailers for over 55 years. Through their classic line of Carla Fine Jewelry to the modern styles of Nancy B, Carla Corporation has a wide selection of high quality 14K gold and sterling silver jewelry, all backed by a lifetime guarantee. They specialize in earrings with a diverse selection of necklaces, pendants and bracelets as well.
  • Founded in 1987, Color Merchants Inc. has garnered a reputation for unmatched quality and customer service within the jewelry industry. They are a leading supplier of wholesale diamond and gemstone jewelry. Now with two generations leading the way, Color Merchants has introduced their in-house Brevani brand.
  • Since 1976, Prime Art & Jewel (PAJ, Inc.) has been perfecting the art of creating jewelry that transcends consumer expectations. Today, PAJ has offices in New York, Toronto, Hong Kong, Macau, Europe and Dallas with more than three thousand employees. Using superior craftsmanship and a focus on customer satisfaction, PAJ has made a name for itself as one of the leading jewelry manufacturers in the world.
  • LALI Jewels, a family owned and operated company, was established in 2015 by brothers Arun and Adam Bassalali, a third-generation jewelry family.
  • LALI Jewels has a robust portfolio of styles in Precious, Semi- Precious and Diamond fashion, allowing them to deliver products that cater to their clients. From classical basics to extravagant beauty of fashion forward at a competitive rate.
  • Continental Jewellery, a one stop company, is dedicated to design, manufacture and export fine Jewelry products. Over the past 4 decades, we have established trusting relationships with majors, mid-size chains, wholesalers and independent jewelers worldwide. With headquarter in Hong Kong and sales offices in United States, United Kingdom, Canada and Europe, we have successfully built a very strong global customer base.
  • Richline Group, Inc., a wholly-owned subsidiary of Berkshire Hathaway Inc. since 2007, is the USA’s foremost Fine Jewelry Manufacturer and Marketer. Richline Jewelry markets and distributes to retailers, at thousands of jewelry outlets across all key distribution channels, National Retail Jewelers, Guild Jewelers, Department Stores, Television and Electronic shopping networks, Mass Merchants and Wholesalers.