Education

How Big Is a 1, 2, 3, 4, or 5 Carat Diamond? Actual Sizes in Millimeters

Carat is weight, not size. Here are the real face-up millimeter measurements of round brilliant diamonds from 1 to 5 carats, and how shape changes how big a diamond looks.

Are Lab-Grown Diamonds Real Diamonds? An NYC Jeweler's Honest Answer

Yes — chemically, physically, and optically, lab-grown diamonds are diamonds. A NYC Diamond District jeweler explains what's identical, what's different, and how certification protects you.

How to Verify Your IGI Certificate (and What the Laser Inscription Means)

Every certified Zack & Elle diamond comes with an IGI report and a laser-inscribed stone ID. Here's how to look up your report online and confirm your diamond matches it.

Martini vs Basket Setting: Which Diamond Stud Setting Is Right for You?

The two classic diamond stud settings compared — how martini and basket settings differ in look, comfort, and security, and how to choose between push backs and screw backs.

Lab-Grown Diamond Price Guide: What 1 to 5 Carats Actually Costs (2026)

Real 2026 prices for IGI-certified lab-grown diamond rings and studs from 1 to 5+ carats — and why buying direct from the maker changes the math.

Certification- The 5th C

Certification is proof of a diamond’s 4C’s grading. Although many diamonds look the same, they are not all going to be of equal quality. Diamond certification is the written proof of a diamo...

The Secret Behind Choosing the Perfect Ring

  Picking the perfect ring can be seen as a daunting task, however Zack, Elle, and the rest of the team are here to help. This process starts off with you explaining to us what you like. This can ...

How a Concierge Jeweler Works for You

At ZACK & ELLE® Jewelry, one of our graduate gemologists will guide you through the custom engagement ring selection process from start to finish. We take special care in helping our clients ...

How Much to Spend on an Engagement Ring

You need to ensure you are not overextending yourself, so finding the right balance is the key. The first step in finding that balance is to do your homework on buying diamonds. You should kn...

How to Properly Take Care of Your Diamond

One way to properly clean your diamond at home is to soak it briefly in water mixed with liquid detergent, and then use a soft brush, like a toothbrush, to clean all sides of the diamond, including...