Talk to a diamond specialist

Consider us your in-house diamond specialists.

Experience you can trust; quality your customers will treasure.

K.Rosengart Jewelry

Our Certified Diamond Services

What if you had your own diamond department, fully staffed by GIA Certified Diamond Specialists with decades of experience in jewelry design, manufacturing, bench work, and stone setting? Imagine the efficiency, the convenience, the consistency, the value — and, most importantly, the quality — that in-house GIA-certified diamond specialists could deliver. With K. Rosengart, you can bring that business-building vision to life.

Consider us your resident diamond experts; our range of certified diamond services and attention to client needs transcends that of a typical diamond dealer. We are fully invested in your success — and will help you build it, one stone at a time. Order your Melee Diamonds Wholesale for your jewelry.

  • Diamond Sorting

    At K. Rosengart, we pride ourselves on having the most precise loose diamond sorting process in the industry. Our team of GIA graduate gemologists follows GIA’s strict standards of diamond grading when it comes to the 4C’s.

    Diamond Sorting and Analysis
  • Melee Diamonds Wholesale

    To create diamond melee jewelry of outstanding beauty and elegance, you need a supplier who upholds strict standards, one who consistently meets your specific tolerance in size. You need K. Rosengart.

    Melee Diamonds
  • Diamond Analysis

    At K. Rosengart sells only 100% natural diamond melee. With the M-Screen 4.0 and the Sherlock Holmes testers, we can assure our clients they are only purchasing 100% natural diamonds.

    Diamond Analysis Service
  • Diamond Insurance Claims & Appraisals

    At K. Rosengart we are happy to provide an appraisal free of charge for any diamond, gemstone, jewelry, or watch sold or made by our team.

  • CAD Diamond Jewelry

    At K. Rosengart we provide CAD (computer-aided design) services to bring your designs to life. We take visions of your idea whether it’s a drawing, inspirational picture, or heirloom piece, and create a three-dimensional jewelry design using CAD.

    Custom CAD Diamond Jewelry
  • Diamond Bagging

    Your name is everything; entrust your diamond orders to K. Rosengart. We deliver consistently exceptional results. After all, we have a reputation to maintain too.

    Diamond Bagging Services
  • Diamond Cutting & Polishing Service

    With our renowned diamond setting and polishing services, we complete the picture. Simply send us your CAD designs or castings, and our team of experts will select the diamonds and/or other gemstones needed to complete the piece.

    Diamond Polishing
  • Brilliant Diamond Insurance

    When you invest in a piece of jewelry, you want to make sure it is protected, giving you peace of mind of knowing if anything happens to it, it can be fixed or replaced. That’s where we come in. K. Rosengart offers lifetime jewelry protection plans in addition to diamond and gemstone protection.

    Brilliant Diamond Insurance
  • Premium Loose Melee Diamonds

    When it comes to your loose diamond supply, trust our GIA-certified specialists to meet your expectations every time.

    Loose Diamond Supply

Partnerships as Strong as Diamonds

We offer a full array of diamond services that enable our valued clients to focus on what they do best: delivering products that their customers will cherish for a lifetime. They can do this with confidence, knowing that we will supply diamond melee that meets their exact specifications — and provide personalized support that exceeds their expectations.

Our goal is not to sell a parcel of stones; it is to forge strong, and sustainable, relationships with designers, manufacturers, retail store owners, buyers, and other professionals. By delivering consistent quality and pricing, and by paying meticulous attention to your unique needs, we seek to become trusted partners.

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