Columbia Jewelry Firm Will Expand to 40 Locations
Headquartered in Columbia, Diamond Banc aims for rapid growth in the luxury-asset resale market by 2030.
Updated on Oct. 12, 2026 in Jewelry
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Diamond Banc, which currently operates 17 offices, is embarking on a strategic expansion plan to reach 40 store locations by the end of 2030. The Columbia-based business anticipates significant growth as it seeks to scale its presence in the luxury-asset resale market.
Why it matters
The company is targeting an aggressive expansion to capitalize on the increasing demand for luxury-asset resale services. By selecting markets with populations exceeding one million, the firm aims to sustain its current momentum in the high-end jewelry sector.
Diamond Banc maintains an annual inventory turnover rate of 12 times per year. The company expects to serve over 15,000 clients by the end of 2026.
The players
Diamond Banc
This jewelry business is headquartered in Columbia, Missouri, and focuses on the luxury-asset resale market.
Mills Menser
He is the founder of Diamond Banc, having established the company in 2007.
The details
Diamond Banc recruits employees with specialized expertise in GIA training, Rolex retail, or independent jewelry store operations to staff its locations. The company plans to open an average of seven new offices annually over the next three years to reach its growth targets.
Timeline
Mills Menser founded Diamond Banc in 2007.
The business generated $4 million in top-line revenue in 2018.
Company revenue reached $60 million in 2025.
The firm expects to serve 15,000 clients by the end of 2026.
The target date to reach 40 store locations is the end of 2030.
Culture Shift
Diamond Banc is capitalizing on the broader surge in the luxury-asset resale market, which has seen consumer habits shift toward the secondary market for high-end goods. This move reflects a wider trend of retail firms scaling specialized services to meet demand for accessible luxury assets.
Local shoppers in current and future markets may see increased access to luxury-asset appraisal and resale services. As the brand expands into major metropolitan areas, customers can expect standardized service levels maintained by staff with specific GIA and luxury retail training.
The takeaway
The company illustrates how specialized niche retailers can achieve rapid growth by targeting high-density urban markets. Consumers interested in the secondary jewelry market should monitor company announcements to see which cities are selected for the next phase of expansion.
Further reading
For more information on the regional jewelry market, see Jewelry.
Source note: This article includes information reported by JCK.
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