Want to Know More About Our Diamonds?

From their chemical composition to their intense sparkle and scintillation, lab grown diamonds are 100% real diamonds, just with a different origin story. Using advanced technology in a highly controlled environment, scientists mimic the same process the earth uses over billions of years to create natural diamonds.

YES, They are Real Diamonds

Chemically, physically and visually, lab grown diamonds are identical to natural diamonds.

Breathtaking Doesn’t Begin to Cover It

Lab grown diamonds offer the same remarkable fire, brilliance and scintillation as natural diamonds.

Budget-Friendly Beauty

Lab grown diamonds offer incredible value, giving you all the sparkle while being inclusively priced.

Environmentally Conscious

There’s no mining involved, and these stones can be created with renewable energy, leaving behind very little (or zero) emissions.

Held to the highest industry standards, every Promise by Effy lab created diamond is obsessively handcrafted and certified by the diamond 4Cs, ensuring exceptional quality and enduring beauty.

Since lab grown diamonds are real diamonds, their quality is determined the same way you would for a natural diamond — by using the 4 Cs: Cut, Color, Clarity and Carat Weight.

All Promise by Effy lab created diamonds are made with the CVD process. A narrow slice of diamond seed is placed in a sealed chamber. The chamber is filled with hydrocarbon gas mixtures and the seed is ionized. This causes the molecular bonds in the gases to break down so the pure carbon sticks to the diamond seed. Once the lab-grown diamonds are fully formed, they’re expertly cut and crafted to unleash their maximum fire and scintillation.

Want to Know More About Our Diamonds?

For personalized guidance and expert advice, we encourage you to book an appointment with our lab diamond experts. You’ll receive in-depth lab made diamond education, as well as help in selecting the perfect diamond, setting and matching wedding band. Our lab diamond experts are also available to help you with custom design options.

Schedule a Virtual Appointment

THE SAME BEAUTIFUL SHAPES

Lab grown diamonds are available in all the same gorgeous shapes as their mined counterparts. Find out more to choose the perfect stone for you.

THE RING BUILDER COMING SOON

Let us help you design the engagement ring of your dreams. Our innovative ring builder is launching shortly. Customize to your heart’s content, from selecting the perfect center stone to embellishing the band and beyond.

Have Questions?

From crush to commitment and everything that follows, we're here for you. Give us a call at 212-PROMISE during the below hours.

9:30AM - 5PM Monday - Thursday EDT
9:30AM - 2:30PM Friday EDT

You can also email us at hello@promisebyeffy.com.

Schedule a Virtual Appointment