Login

Cart

Your cart is empty

3 Carat Lab Grown Diamond Engagement Rings

Explore the collection and choose the details that suit you.

About this collection

Engagement rings with a 3 to 3.99 carat lab-grown center diamond, our most popular size. A 3 carat round measures about 9.3mm across; ovals, radiants and elongated cushions face up even larger. Every center diamond is IGI certified and laser-inscribed, set by hand in our NYC Diamond District studio in 14K, 18K gold, or platinum.

See actual carat sizes in millimeters and what 1 to 5 carats actually costs.

Sort by

23 products

On sale3.50 Ct E VS1 Oval Lab Grown Diamond Halo Ring, in white gold, front viewOval
3.50 Ct E VS1 Oval Lab-Grown Diamond Halo Ring

E VS1 · IGI Certified

Sale priceFrom $1,795.00 Regular price$2,550.00
Metal Color
On sale3.50 Ct D VS1 Radiant Cut Lab-Grown Diamond Three Stone Ring With Trapezoid Accents, in white gold, front viewRadiant
3.50 Ct D VS1 Radiant Cut Lab-Grown Diamond Three Stone Ring With Trapezoid Accents

D VS1 · IGI Certified

Sale priceFrom $1,895.00 Regular price$2,700.00
Metal Color
On sale6.50 Ct E VS1 Princess Cut Lab-Grown Diamond Engagement Ring with Matching Band, in white gold, front viewPrincess
6.50 Ct E VS1 Princess Cut Lab-Grown Diamond Engagement Ring with Matching Band

E VS1 · IGI Certified

Sale priceFrom $4,895.00 Regular price$6,900.00
Metal Color
On sale4.20 Ct Oval E VS1 Diamond Ring With Baguette and Round Accents, in white gold, front viewOval
4.20 Ct E VS1 Oval Lab-Grown Diamond Ring With Round Accents

E VS1 · IGI Certified

Sale priceFrom $1,895.00 Regular price$2,700.00
Metal Color
On sale3.00 Ct E VS1 Oval Lab Grown Diamond Solitaire Ring, in white gold, front viewOval
3.00 Ct E VS1 Oval Lab-Grown Diamond Solitaire Ring

E VS1 · IGI Certified

Sale priceFrom $1,395.00 Regular price$2,000.00
Metal Color
On sale3.50 Ct E VS1 Cushion Lab Grown Diamond Three Stone Ring, in white gold, front viewCushion
3.50 Ct E VS1 Cushion Lab-Grown Diamond Three Stone Ring

E VS1 · IGI Certified

Sale priceFrom $1,695.00 Regular price$2,400.00
Metal Color
On sale3.00 Ct D VS1 Cushion Solitaire Lab Grown Diamond Ring, in white gold, front viewCushion
3.00 Ct D VS1 Cushion Solitaire Lab-Grown Diamond Ring

D VS1 · IGI Certified

Sale priceFrom $1,695.00 Regular price$2,400.00
Metal Color
On sale3.00 Ct D VS1 Round Solitaire Diamond Ring Tulip Setting, in white gold, front viewRound Brilliant
3.00 Ct D VS1 Round Solitaire Lab-Grown Diamond Ring Tulip Setting

D VS1 · IGI Certified

Sale priceFrom $1,495.00 Regular price$2,100.00
Metal Color
On sale3.00 Ct D VS1 Oval Solitaire Diamond Ring Tulip Setting, in white gold, front viewOval
3.00 Ct D VS1 Oval Solitaire Lab-Grown Diamond Ring Tulip Setting

D VS1 · IGI Certified

Sale priceFrom $1,395.00 Regular price$2,000.00
Metal Color
On sale3.00 Ct D VS1 Oval Solitaire Lab Grown Diamond Ring, in white gold, front viewOval
3.00 Ct D VS1 Oval Solitaire Lab-Grown Diamond Ring

D VS1 · IGI Certified

Sale priceFrom $1,395.00 Regular price$2,000.00
Metal Color
On sale5.20 Ct D VS1 Round Three Stone Ring With Heart Shape Accents and Halo, in white gold, front viewRound
5.20 Ct D VS1 Round Lab-Grown Diamond Three Stone Ring With Heart Shape Accents and Halo

D VS1 · IGI Certified

Sale priceFrom $2,295.00 Regular price$3,250.00
Metal Color
On sale3.00 Ct E VS1 Oval Lab Grown Diamond Solitaire Ring, in white gold, front viewOval
3.00 Ct E VS1 Oval Lab-Grown Diamond Solitaire Ring

E VS1 · IGI Certified

Sale priceFrom $1,495.00 Regular price$2,100.00
Metal Color
On sale3.18 Ct E VS1 Marquise Halo Lab Grown Diamond Ring, in white gold, front viewMarquise
3.18 Ct E VS1 Marquise Halo Lab-Grown Diamond Ring

E VS1 · IGI Certified

Sale priceFrom $1,795.00 Regular price$2,550.00
Metal Color
On sale3.00 Ct E VS1 Princess Cut Lab Grown Diamond Solitaire Ring, in white gold, front viewPrincess
3.00 Ct E VS1 Princess Cut Lab-Grown Diamond Solitaire Ring

E VS1 · IGI Certified

Sale priceFrom $1,495.00 Regular price$2,100.00
Metal Color
On sale3.00 Ct E VS1 Marquise Lab Grown Diamond Solitaire Ring, in white gold, front viewMarquise
3.00 Ct E VS1 Marquise Lab-Grown Diamond Solitaire Ring

E VS1 · IGI Certified

Sale priceFrom $1,595.00 Regular price$2,250.00
Metal Color
On sale3.00 Ct E VS1 Radiant Cut Solitaire Diamond Ring, in white gold, front viewRadiant
3.00 Ct E VS1 Radiant Cut Solitaire Lab-Grown Diamond Ring

E VS1 · IGI Certified

Sale priceFrom $1,429.00 Regular price$2,050.00
Metal Color
On sale3.50 Ct E VS1 Radiant Three Stone Ring With Trapezoid Accents, in white gold, front viewRadiant
3.50 Ct E VS1 Radiant Lab-Grown Diamond Three Stone Ring With Trapezoid Accents

E VS1 · IGI Certified

Sale priceFrom $2,295.00 Regular price$3,250.00
Metal Color
On sale5.00 Ct E VS1 Round Diamond Three Stone Ring, in white gold, front viewRound
5.00 Ct E VS1 Round Lab-Grown Diamond Three Stone Ring

E VS1 · IGI Certified

Sale priceFrom $2,295.00 Regular price$3,250.00
Metal Color
On sale3.50 Ct D Color VS1 Emerald Cut Three Stone Diamond Ring With Tapered Baguettes, in white gold, front viewEmerald Cut
3.50 Ct D Color VS1 Emerald Cut Three Stone Lab-Grown Diamond Ring With Tapered Baguettes

D VS1 · IGI Certified

Sale priceFrom $1,695.00 Regular price$2,400.00
Metal Color
On sale3.50 Ct Radiant Cut D VS1 Diamond Three Stone Ring With Tapered Baguettes, in white gold, front viewRadiant
3.50 Ct Radiant Cut D VS1 Lab-Grown Diamond Three Stone Ring With Tapered Baguettes

D VS1 · IGI Certified

Sale priceFrom $1,595.00 Regular price$2,250.00
Metal Color
On sale3.00 Ct E VS1 Elongated Cushion Solitaire Diamond Ring, in rose gold, front viewElongated Cushion
3.00 Ct E VS1 Elongated Cushion Solitaire Lab-Grown Diamond Ring

E VS1 · IGI Certified

Sale priceFrom $1,795.00 Regular price$2,550.00
Metal Color
On sale3.40 Ct E VS1 Oval Lab Diamond Side Stone Engagement Ring, in yellow gold, front viewOval
3.40 Ct E VS1 Oval Lab-Grown Diamond Side Stone Engagement Ring

E VS1 · IGI Certified

Sale priceFrom $1,895.00 Regular price$2,700.00
Metal Color
On sale3.40 Ct Round Diamond Ring W/ Tapered Baguettes, in 14k white gold, angle view 1Round
3.40 Ct D VS1 Round Lab-Grown Diamond Three Stone Ring with Tapered Baguette Accents

D VS1 · IGI Certified

Sale priceFrom $1,695.00 Regular price$2,400.00
Metal Color
Can’t decide on the one?

Tell us your shape, budget, and timeline. A real specialist will hand-pick options — or design something entirely custom.

Book a Specialist

Free Delivery in the United States

Fully insured FedEx shipping on every order, signature required on delivery.

30-Day Returns

30-day returns on unworn pieces. A $75 insured return-label fee is deducted from your refund.

Family-Owned Support

Two generations in NY's Diamond District. Text, call, or email — real humans.

Secure Payments

Encrypted checkout. Cards, Google Pay, and Shop Pay accepted — with Shop Pay Installments available.