3 Carat F Color Lab Grown Diamonds

Browse 3 carat F color lab grown diamonds with transparent pricing, IGI grading reports and free insured USA shipping. Choose from 162 options at 3 carat, in F color and VVS1, VVS2, VS1 and VS2 clarity, priced from $693.

Round Oval Cushion Pear Emerald Princess Heart Marquise Asscher Radiant Rose CutRose CutOld EuropeanOld EuropeanOld MineOld MinePortuguesePortugueseHalf MoonHalf MoonTapered BaguetteTapered BaguetteBaguetteBaguetteHexagonHexagonKiteKiteTrapezoidTrapezoidTriangleTriangleTrilliantTrilliantHeptagonalHeptagonalPentagonalPentagonalShieldShieldCapsuleCapsuleOctagonalOctagonalStarStarSquareSquareLozengeLozengeCalf HeadCalf HeadBulletBulletFlandersFlandersAshokaAshokaCadillacCadillacLilyLilyCadillac StepCadillac StepButterflyButterflyMovalMovalFlowerFlower

3 Carat F Color Lab Grown Diamonds

Browse 3 carat F color lab grown diamonds with transparent pricing, IGI grading reports and free insured USA shipping. Choose from 162 options at 3 carat, in F color and VVS1, VVS2, VS1 and VS2 clarity, priced from $693.

How big is a 3 carat diamond?

Carat measures weight, not size, but weight decides how large a diamond looks. A 3 carat round diamond measures about 9.3 mm across. Fancy shapes such as oval, pear and marquise often look larger than a round of the same weight because more of their weight sits in the visible top of the stone.

What does F color mean?

F is the last grade in the colorless range. It looks pure white to the eye in white gold or platinum and offers the best value among colorless diamonds.

How to choose

VVS1 and VVS2 are the cleanest grades we offer, while VS1 and VS2 are eye-clean and leave more budget for carat weight. Available shapes include Round, Oval, Cushion, Pear, Emerald, Princess, Heart and Marquise and more. Prices in this collection range from $693 to $289,122.

Are lab grown diamonds a smart choice?

Lab grown diamonds are real diamonds with the same chemical makeup, hardness and sparkle as mined stones, so they are just as durable for everyday wear. Because they cost a fraction of the price, many couples choose a larger carat weight or a higher color and clarity grade for the same budget, and they enjoy a known, ethical origin.

Setting your diamond

Once you pick a stone, our jewelers can set it in a solitaire, hidden halo, halo, pavé or three stone engagement ring in 14K or 18K white, yellow or rose gold or platinum. Each ring is made to order, and our team will confirm sizing and proportions before production.

Why buy from Northfire Jewelry

Every diamond is IGI certified, shipped free and fully insured within the USA, and backed by a 30-day return policy. Lab grown diamonds are real diamonds, chemically, physically and optically identical to mined diamonds, at a fraction of the price. Our team can set your diamond in any of our engagement ring designs or create a fully custom ring for you.

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Got Questions? We Got Answers

Are 3 carat F color lab grown diamonds real diamonds?
Yes. Lab grown diamonds are real diamonds made of pure carbon with the same hardness, brilliance and chemical structure as mined diamonds. Only their origin is different.
How much do 3 carat F color lab grown diamonds cost?
Diamonds in this collection are priced from $693 to $289,122, depending on shape, carat, color and clarity.
What size is a 3 carat diamond in mm?
A 3 carat round diamond is about 9.3 mm in diameter. Fancy shapes have similar face-up area spread over their own outline.
Is F color worth it?
F is the last grade in the colorless range. It looks pure white to the eye in white gold or platinum and offers the best value among colorless diamonds. It is the most popular choice for value.
Do these diamonds come with a certificate?
Yes. Every diamond is graded by IGI (International Gemological Institute) and ships with its original IGI grading report.
Can I set this diamond in an engagement ring?
Yes. Choose any loose diamond and our jewelers will set it in the Northfire engagement ring of your choice or in a custom design. Contact us and we will guide you.
What is your shipping and return policy?
Shipping is free and fully insured within the USA, and loose diamonds can be returned within 30 days in their original condition.