Home / Custom Diamond Search

Start by finding your perfect diamond

We know that finding the right diamond can be a difficult task. Using this search, we can help you narrow down your search for AGS certified diamonds or GIA certified diamonds. We'll give you instant feedback on the number of results and provide help to you along the way. If you need additional assistance, call 312-578-8462 to speak to a diamond expert.

Diamond Ring Builder Progress: Find your diamond

Welcome to the Gregg Helfer ring builder. You'll start here by finding your perfect diamond. Once you've narrowed down your options, and selected your choice from the results, you'll be taken the list of available settings to choose from. Once you've finished your ring, it will be added to your shopping bag and you can continue on to the checkout. If you prefer, you can start with the setting and choose your diamond afterwords.

STEP 1. Select your diamond shape (REQUIRED):

Diamond Shape Information

We have an exceptional collection of traditional round diamonds and we also offer the finest non-round, or "fancy-shaped", diamonds available. Since all diamond shapes are very different, unique characteristics determine quality for each shape. * Learn More …

STEP 2. Select your diamond cut grade(s):

Diamond Cut Information

The cut of a diamond determines its brilliance. There is no single measurement of a diamond that defines its cut, but rather a collection of measurements and observations that determine the relationship between a diamond's light performance, dimensions and finish. * Learn More …

STEP 3. Enter your diamond price range:

Diamond Price Information
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If you're on a budget, you can limit your results by price. You can set one of the limits to set an only an upper or lower bound.

STEP 4. Enter your carat weight:

Diamond Carat Information
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To choose the best carat weight of diamond, consider her style, the size of her finger, the size of your setting, and your budget. * Learn More …

STEP 5. Select your diamond color grade(s):

Diamond Color Information

Acting as a prism, a diamond can divide light into a spectrum of colors and reflect this light as colorful flashes called fire. The less color in a diamond, the more colorful the fire, and the better the color grade. * Learn More …

STEP 6. Select your diamond clarity grade(s):

Diamond Clarity Information

Diamonds that are absolutely clear are the most sought-after and therefore the most expensive. But many diamonds have inclusions, scratches, trace minerals or other tiny characteristics that can detract from the pure beauty of the diamond. * Learn More …

STEP 7. Select certified lab report(s):

Certified Lab Report Information

Before purchasing a diamond, you should review a copy of its certificate of examination by an unbiased, professional examination. * Learn More …

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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