Insurance companies such as Allstate, State Farm and Chubb rely on K&W for consulting, replacement gems, diamond cutting, jewelry repair, salvage recovery and purchase. These companies know that they can trust our appraisers and Certified Graduate Gemologists.


Our experts can provide accurate professional evaluations for any and all your appraisal needs. Whether obtaining appraisals for insurance, estate tax, equitable distribution, donation, dissolution of marriage, bankruptcy or sale, we are ready to assist you.


Knowledge, ethics and reliability guide our appraisal service. Our passion for gems and jewelry in addition to our commitment to professionalism manifest itself in our service.


Insurance Claim Replacement

K&W (American Gemological Replacements), a specialist in loose diamonds and finished jewelry, uniquely combines a diamond cutting factory, jewelry manufacturing, and GIA like lab. We are a source supplying both the jewelry industry and the replacement gem and jewelry industry.


American Gemological goes even further! To insure complete satisfaction, AGR handles your claims from start to AOS. We will take care of Appraisal review, Direct claimant contact, Product sent directly to claimant, Signed AOS’s sent directly to you.


AGR guarantees 100% satisfaction to all clients; all qualities stated are guaranteed. No customer is forced to accept merchandise unless 100% satisfied with the quality of the product.


Buy & Trade In

Kestenbaum & Weisner is always available to turn your old outdated or just unwanted jewelry and gems into cash or trade-in for a new piece of jewelry.


We are experts in evaluating and pricing, which enables us to pay the highest prices for your gems.


Come see us in the showroom or we will make arrangements for a home, bank or office visit.



It’s important to you…It is important to us.
There is no job that is too big or too small. Broken or twisted, chipped or just dull, we are experts at repairing and reconditioning your gems.

  • "Their service is second to none. They are all extremely honest, fair and over the top accommodating when it comes to purchasing jewelry."