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  • https://www.revediamonds.com/3-carat-si1-clarity-lab-grown-diamonds

3 Carat SI1 Clarity Lab Grown Diamonds

Select a 3ct SI1 Clarity lab grown diamond from the thousands of certified lab diamonds in our collection.
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Call us today: 020 35852295

Looking To Buy a 3 Carat SI1 Clarity Lab Grown Diamond?

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Lab Grown Diamonds
Coloured Diamonds

  • Round Round

  • Princess Princess

  • Cushion Cushion

  • Emerald Emerald

  • Pear Pear

  • Oval Oval

  • Marquise Marquise

  • Radiant Radiant

  • Asscher Asscher

  • Heart Heart

  • European Cut European Cut

  • Old Miner Old Miner

  • Rose Rose

  • Briolette Briolette

  • Bullets Bullets

  • Calf Calf

  • Flanders Flanders

  • Half Moon Half Moon

  • Hexagonal Hexagonal

  • Kite Kite

  • Lozenge Lozenge

  • Octagonal Octagonal

  • Pentagonal Pentagonal

  • Shield Shield

  • Square Square

  • Star Star

  • Tapered Baguette Tapered Baguette

  • Baguette Baguette

  • Tapered Bullet Tapered Bullet

  • Trapezoid Trapezoid

  • Triangular Triangular

  • Trilliant Trilliant

  • Other

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3 Carat SI1 Clarity Lab-Grown Diamond

A 3-carat SI1 clarity diamond is a stylish and affordable option for engagement rings or custom jewellery. With slight internal imperfections, it delivers impressive sparkle and visual appeal—ideal for those who seek timeless beauty with excellent value.

Why Choose a Lab-Grown Diamond?

Lab-grown diamonds are real diamonds created in a laboratory setting, using either the High Pressure High Temperature (HPHT) or Chemical Vapour Deposition (CVD) process. They are physically, chemically, and visually the same as mined diamonds—so much so that even expert gemmologists require advanced equipment to tell them apart.

Choosing lab-grown means saving 30% to 50% over the price of a natural diamond, all while making an environmentally conscious and ethical decision.

All Rêve Diamonds’ lab-grown stones are independently certified, most commonly by IGI or GIA.

Need Assistance?

Call us on 020 3585 2295 or chat with our diamond experts to find your perfect 3 carat SI1 Clarity lab-grown diamond today.

Frequently Asked Questions

-What does SI1 clarity mean in a 3 carat lab-grown diamond?

SI1 (Slightly Included) clarity means the diamond has small internal imperfections visible under 10x magnification, and occasionally with the naked eye. It offers excellent value without sacrificing beauty.

-How much does a 3 carat SI1 clarity lab-grown diamond cost?

Prices typically range from £2,500 to £14,000, depending on the diamond’s cut, colour, polish, symmetry, and certification. SI1 is one of the best-value clarity grades for larger stones.

-Is a 3 carat SI1 clarity lab-grown diamond better than a mined diamond?

Lab grown diamonds are chemically and optically identical to mined diamonds. A 3ct SI1 clarity lab-grown diamond offers the same visual impact at a lower price and with a smaller environmental footprint.

-Will an SI1 clarity lab-grown diamond look better than a VS or VVS diamond?

To the naked eye, SI1 diamonds often appear similar to VS or VVS stones. While inclusions may be slightly more visible, a well-cut SI1 diamond still delivers stunning brilliance.

-What size is a 3 carat SI1 lab-grown diamond?

A 3 carat diamond typically measures around 9.3 mm in diameter for a round cut or 9.5 mm x 9.5 mm for a square cut like Asscher. Clarity does not affect the dimensions of the stone.