Lab Grown Diamond Jewelry

All of the Jewelry can be custom-made in any size Diamonds.

Lab-grown diamonds offer identical brilliance and quality to natural diamonds while being more affordable and eco-friendly. They reduce environmental impact, ensure conflict-free sourcing, and provide customizable options. Certified by reputable gemological labs, lab-grown diamonds are a sustainable, ethical choice without compromising beauty or value.

Lab Grown Diamond Bracelets

lab grown Diamond earrings

lab grown Diamond necklaces

lab grown Diamond rings

view all collections lab grown


A fourth generation member of the Ortman family, Heidi Ortman Sheff was fortunate to work with her grandfather for 6 years (1984-90) before he passed away. Today she is still active in the diamond, precious stone and fine jewelry industry. Having connections throughout the US, J.Ortman Inc is a premier source for buying, selling, and redesigning your jewelry and precious gems.

Customer Reviews

Barbara, South Florida & NYC
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I Had the privilege of working with Heidi to design a truly special pair of diamond studs. The quality of the stones combined with an embellished border was the perfect combo. The piece de resistance! Heidi`s idea to add a gorgeous aquamarine drop for black cocktail dress evenings. Integrity and creativity...Thank you, Heidi!
Angela, NYC & Boca Raton, Fl
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Ms Ortman Sheff has a discerning eye and has been a joy to work with throughoutt the years. She made a spectacular diamond wedding band for me, upgraded the look of my engagement ring by redesigning the setting, and has made an exquisite custom necklace for me. She is very well versed in market trends and value. I trust her implicitly to provide the highest quality at the best value.
Jocelyn, South Carolina
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I have been purchasing jewelry from Heidi Sheff for the last 20 years. She has the most wonderful collections that always has me wanting more! Heidi is fun to work with. Her eye, knowledge, and attention to detail is astounding. The quality of her pieces are top tier and her prices are very fair. When i need a special gift for myself or someone i love, Heidi is my first call.
Ed, Dallas, Texas
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Heidi is the consummate professional and my go to person whenever i need precious stones or i nedd to liquidate part of my jewelry collection. She is extremely knowledgeable and it`s very rare to find someone in this industry who has her morals in the right place. I highly recommend anybody and everybody to consult with Heidi prior to making any decisions in the jewelry world.
Ken, Ct
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I have worked with Heidi for over 30 years and i would not go anywhere else for precious gems or fine jewelry. I have always received the best service and quality in diamonds and workmanship. If i wanted to sell something, i would make a profit on my investment.

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