Education

Do Lab-Grown Diamonds Hold Their Value? An Honest Answer Before You Buy

An honest look at lab-grown diamond resale value from a Diamond District family jeweler: what you give up, what you gain, and why most buyers come out ahead.

Do Lab-Grown Diamonds Pass a Diamond Tester? Yes — Here's Why

Yes — lab-grown diamonds pass every standard diamond tester, because they are real diamonds. An NYC Diamond District jeweler explains how testers work and how to verify your stone.

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

Why certification is the fifth C — what an independent IGI report tells you, and why you should never buy a significant diamond without one.

The Secret Behind Choosing the Perfect Ring

How to choose a ring they'll love — reading their style, getting the size right, and picking a setting that fits their life.

How a Concierge Jeweler Works for You

What it's like to work directly with a Diamond District maker — private viewings, custom work, and honest guidance without retail pressure.