1.5 Carat Lab Grown Diamonds
Loose lab-grown diamonds from 1.50 to 1.69 carats, each with an IGI or GIA grading report.
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About 1.5 Carat Lab Grown Diamonds
This search opens on loose lab-grown diamonds from 1.50 to 1.69 carats in all shapes, each with an IGI or GIA grading report. Quality filters open on G color or better, VS2 clarity or better and an Excellent cut; widen any of them to see more. A round of this weight measures about 7.4 mm across; elongated shapes such as ovals, pears and marquises spread the same weight over a longer outline and usually look larger face-up. At this size, a lab-grown diamond typically costs far less than a natural diamond of the same size and quality. Each diamond is sourced for your order and arrives in about 2 to 3 weeks.
Looking at other sizes? Search 1 carat, 2 carats or 3 carats lab-grown diamonds.
From our guides
1.5 Carat Diamond Questions
How big is a 1.5 carat diamond?
A 1.5 carat round brilliant measures about 7.4 mm across, compared with about 6.5 mm for a 1 carat round.
Is a 1.5 carat lab grown diamond a good size for an engagement ring?
Yes. It is a noticeable step up from 1 carat while staying classic on most hands, and it suits solitaire, halo and three-stone settings.
Can I set a loose 1.5 carat diamond in an engagement ring?
Yes. Book a video or phone appointment and we will help you pair it with one of our settings. Loose diamonds are final sale, so we are glad to help you choose first.
Every Loose Diamond
IGI or GIA Graded
Every diamond comes with its IGI or GIA grading report.
Free US Shipping
Free FedEx shipping within the US; international orders ship for a flat $75.
Sourced for You
Each diamond is sourced for your order and arrives in about 2 to 3 weeks.
Final Sale
Because each diamond is sourced for your order, loose diamonds are final sale.
