Jewelry selling, buying, and appraising.




If you are looking for a trusted resource for your jewelry liquidation needs, we can help. Ken Dondero and Kevin Kleiner, owners of Dondero Diamonds and Fine Jewelry, founded Benchmark Gem Brokers in 2010. From their experiences at Dondero’s, they recognized the need in the community for a service that offers true and honest liquidations as well as consultation and appraisal services.

With a combined seventy years of experience in jewelry selling, buying, and appraising, as well as GIA, JA and DCA accreditation, Benchmark Gem Brokers will guide you through the jewelry liquidation process with confidence and peace of mind.


Benchmark Gem Brokers offers a full range of services to fit your particular buy/sell needs:

  • The highest liquidation offers on your diamonds – Any and all sizes
  • Fair and honest scrap metals liquidation
  • Advice on how to sell your own pieces


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Dondero Diamonds and Fine Jewelry is a full-service fine jewelry store specializing in engagement rings and wedding bands, loose diamonds, custom-made one-of- a-kind jewelry and engagement rings, diamond and gemstone jewelry, and jewelry repair. Dondero’s offers fine jewelry at the most affordable prices, and carries a huge selection of bracelets, necklaces, rings, and earrings, and watches by MOVADO and CITIZEN.

Since 1948, Dondero’s has been family owned and operated in Vineland, New Jersey. Owners Kevin Kleiner and Ken Dondero, along with their entire staff, share this philosophy:

“Everything we do is for the benefit of our customers and no job or sale is any more or less important than any other”. It is our commitment to this philosophy that has allowed us to grow over the years. Our customers expect us to “do it all”, and to do it better than anyone else. This is what we strive for every day we open our doors. This is who we are.”