3 Carat Round Cut Lab Grown Diamond Engagement Rings

Type
Style
Metal
Carat
Carat is the measure of a diamond's weight and size. We offer an array of high-quality diamonds ranging from 0.18 to 25.00 carats- with 1.00 carat being the most popular.
Color
A diamond’s color grade actually measures how little color it reflects. To strike the best balance between cost and beauty, go for diamonds in the Near Colorless range: G, H, and I.
Clarity
Clarity indicates how many flaws are visible to the naked eye. Too many flaws can detract from a diamond's beauty.
Cut
Cut is the quality of a diamond’s proportions and symmetry. The better a diamond’s proportions and symmetry, the more sparkle it will produce. Cut is the most important of the 4 Cs.
Price
More Filters
Delivery Date
In a rush to get your diamond? Choose your ideal delivery date.
Delivery Date
Tool Tip Icon
In a rush to get your diamond? Choose your ideal delivery date.
4 interest-free payments of $632.25.
The Lia / 3.05 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $639.25.
The Dara / 3.05 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $649.00.
The Maddie / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $662.25.
The Evelyn / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $668.50.
The Petra / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $668.50.
The Vera / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $669.00.
The Giselle / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $689.00.
The Siena / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $689.25.
The Lia / 3.01 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $689.25.
The Lia / 3.01 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $690.75.
The Lia / 3.02 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $690.75.
The Lia / 3.02 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $690.75.
The Lia / 3.02 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $691.50.
The Juno / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $692.25.
The Lia / 3.03 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $693.00.
The Agnes / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $695.75.
The Una / 3.05 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $696.25.
The Dara / 3.01 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $697.75.
The Dara / 3.02 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $697.75.
The Dara / 3.02 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $699.25.
The Dara / 3.03 Carat Round Lab Diamond
Add To List
Save for later

4 interest-free payments of $699.25.
The Jasmine / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $702.75.
The Tallulah / 3.05 Carat Round Lab Diamond
Video play badge
Add To List
Save for later

4 interest-free payments of $702.75.
The Delia / 3.05 Carat Round Lab Diamond
Add To List
Save for later

You’ve viewed 24 of 1,242 products

3 Carat Round Cut Lab Grown Diamond Engagement Rings

An iconic shape, the round brilliant’s facets are designed for maximum sparkle. A Near Colorless or Colorless grade is advised if you intend to select a white metal. The faint yellow in K or L graded diamonds is balanced by a yellow gold setting. Setting your three-carat round cut diamond in a French-set halo adds even more vintage sparkle, while a solitaire emphasizes its impressive size and quality.