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Customer Testimonials

After having a problem with inaccurate sizing of my husband's wedding band at another store on jewelers row in chicago, I turned to Gregg Helfer Ltd. desperately for help. They offered great customer service… hard to come by these days. They created the perfect ring for me within one week and plenty of time to spare before the wedding.

– J. Kies… Chicago

Home / Custom Diamond Search

Find the 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.

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

Diamond Cut Information

Fair
Good
Very Good
Excellent
Ideal

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

Priced from $ to $

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

Carat from to

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

FL
Flawless
IF
Internally flawless
VVS1
Few inclusions at 30x
VVS2
Some inclusions at 30x

VS1
Few inclusions at 10x
VS2
Some inclusions at 10x
SI1
No visable inclusions
SI2
Some visible inclusions

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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