Simon Golub & Sons, headquartered in Seattle, Washington, was formed in 1922 as a family owned business and operated for three generations until 2007 when they were acquired by Shrenuj & Company, Ltd. Shrenuj, with 4 generations of family leaders in their company, was established in 1906 as a diamond trading corporation and currently has a network of 14 sales offices throughout the world spanning four continents. Each local office has intimate knowledge of its market, and strives to offer the best possible service to its customers. Shrenuj has been a DTC sight holder since 1983 and most recently acquired a diamond cutting facility and a separate DTC sight in Botswana.

Shrenuj & Company built their reputation on the same strategic core values and high-standards of business practices as Simon Golub & Sons. Shrenuj’s jewelry design and production expertise has been regularly commended by leading industry bodies and has received numerous significant awards such as two DeBeers Diamonds International Awards, Botswana Shining light award and a JCK and HRD award.

Shrenuj and Simon Golub have combined their international and domestic relationships with the added value of Shrenuj’s vertically integrated manufacturing capabilities to provide our customers exceptional value through innovation, reliability and consistency. Simon Golub, known for our world class customer service, will continue to provide the same standard of service, which the jewelry community has recognized by awarding Simon Golub & Sons IJO Vendor of The Year multiple times.

Shrenuj has created three separate divisions within Simon Golub & Sons that work cohesively as a team to meet the variety of customer needs throughout the jewelry industry. Those divisions include:

  • The Independent Division (JLY), – This division concentrates on the Independent Jewelry trade. Simon Golub & Sons belongs to both RJO and IJO, the two most significant buying groups for the independent trade.
  • C&A Diamonds, – Specializes in certified and loose diamonds with two branded bridal lines, Caro74 ( and Valina Bridals (
  • Portland Division, – This division specializes in tools, equipment, boxes, displays, packaging materials and tools for jewelry-making and repair. Portland also sells many gift items appropriate for jewelry stores.