• Diamond Jewelry

Besides certified GIA and AGS certified diamonds, Gregg Helfer Ltd. also offers one of the largest selections of diamond jewelry online. From a simple diamond solitaire pendant to the newest trends in diamond jewelry, buying certified diamonds and jewelry from Gregg Helfer Ltd.is sure to be easy.

Diamond Tennis Bracelets

Gregg Helfer Ltd. offers the highest quality hand picked diamonds available for their jewelry.

Diamond Stud Earrings

Diamond stud earrings selected for the best brilliance and quality.

Diamond Bracelets

Browse simple and elegant styling designer bracelets...

Diamond Necklaces

The finest quality designer inspired charms & pendants to compliment your style...

Diamond Fashion Rings

The finest quality diamond designer fashion rings to accent any occasion...

Diamond Fashion Earrings

Diamond earrings including the new diamond journey collection...

Solitaire Engagement Settings

Start with any of our simple traditional or contemporary settings available in White Gold, Yellow Gold, or Platinum.

Diamond Solitaire Pendants

Classic and simple, starting at $350.

Engagement Settings with Diamonds

Add more brilliance to your engagement ring with a diamond engagement setting available in White Gold, Yellow Gold or Platinum.

Wedding and Anniversary Bands

Hand selected premium anniversary, wedding jewelry and eternity bands available with Diamonds in White Gold, Yellow Gold, or Platinum.

Men's Wedding Rings

Hand selected premium anniversary, wedding jewelry and eternity bands available with Diamonds in White Gold, Yellow Gold, or Platinum.

Three Stone Diamond Pendants

Three Stone Diamond Pendant

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Expert Guidance

Need guidance before you start diamond shopping? This simple diamond guide explains the four Cs of diamonds: cut, color, clarity, and carat weight. Select your diamond based on the same criteria jewelers use to grade them. After reading through this guide, you'll be ready to choose the diamond that's right for your taste and budget.

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Customer Testimonials

Upfront, professional and real. Best jeweler in Chicago! Made my dream ring..like he was reading my mind.

– Jackie V.… Chicago