Thank You!

Diamond banc is a fantastic service for anyone looking to sell in Beverly Hills.

Katie, who runs the Beverly Hills office, is knowledgeable and friendly with everyone who comes in. Everyone feels taken care of and offered a great deal! Can’t recommend Diamond banc enough!

Kate and I had a great transaction today and her warm reception was top notch. Thank you for having me and taking your time to certify the product.

I had an exceptional experience with Katie Diamond Banc during a moment of real crisis involving an extremely high-end piece of jewelry. From the very first interaction, she brought a rare combination of professionalism, clarity, and genuine compassion that immediately put me at ease.

Katie is not only a highly skilled gemologist, but also someone who communicates complex information in a way that feels simple, transparent, and reassuring. She spelled everything out clearly, made the entire process effortless on my end, and handled every detail with precision and care.

Beyond her expertise, she is truly a remarkable person—warm, funny, compassionate, and deeply intuitive in how she supports her clients. In a stressful situation, she made everything feel grounded and manageable.

She is, quite honestly, a gem in every sense of the word. An angel in her field and a true master of her craft. I cannot recommend her highly enough.

Great experience, excellent customer service

I had the best experience with Katie! She was so knowledgable and helpful, and provided transparency throughout the process. I sold a number of 14k gold pieces, and some diamond studs, and felt the pricing was very fair. I will happily be back for any of my future jewelry selling needs!

Katie was great and professional

Katie made me so at ease. She was so informative, kind, compassionate and I just wanted to do business with her considering an emotional and financial decision. It never felt transactional. So grateful!

Katie was a pleasure to work with excellent service. Fair pricing. Highly recommend them if you’re looking to sell or buy some jewelry.

Excellent service a pleasure to sell with! Highly recommend them.

Katie was incredible. She was so informative and educated us on our options. She was patient and attentive during the process and we ended up so happy with the final offer and the entire process as a whole.