3.1 Carat Marquise Lab Grown Diamonds

Search over 6,417 3.1 Carat Marquise lab grown diamonds from 12 online retailers.Prices typically range from $644 to $10,536 depending on the diamond's shape, color, clarity, and other factors.For broader market trends, check our Diamond Price Indexes.

3.1 Carat Marquise Lab Grown Diamonds Available

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Showing up to 50 of 6,417 offers.

3.07ct | Marquise | G | VS1 | ExcellentIGI
Save 67.8%

3.07ct | Marquise | G | VS1 | Excellent

From $644

Compare at $2,004

5 stores
3.07ct | Marquise | G | VS1 | IdealIGI
Save 67.8%

3.07ct | Marquise | G | VS1 | Ideal

From $644

Compare at $2,004

5 stores
3.07ct | Marquise | G | VS1 | IdealIGI
Save 33%

3.07ct | Marquise | G | VS1 | Ideal

From $644

Compare at $962

3 stores
IGI
Save 35.6%

3.08ct | Marquise | G | VS1 | Ideal

From $646

Compare at $1,003

3 stores
3.08ct | Marquise | G | VS1 | ExcellentIGI
Save 67.9%

3.08ct | Marquise | G | VS1 | Excellent

From $646

Compare at $2,010

5 stores
3.08ct | Marquise | G | VS1 | IdealIGI
Save 67.9%

3.08ct | Marquise | G | VS1 | Ideal

From $646

Compare at $2,010

5 stores
3.08ct | Marquise | G | VS1 | ExcellentIGI
Save 67.9%

3.08ct | Marquise | G | VS1 | Excellent

From $646

Compare at $2,010

5 stores
3.05ct | Marquise | G | VVS2 | IdealIGI
Save 32.3%

3.05ct | Marquise | G | VVS2 | Ideal

From $646

Compare at $955

3 stores
3.05ct | Marquise | G | VVS2 | ExcellentIGI
Save 32.3%

3.05ct | Marquise | G | VVS2 | Excellent

From $646

Compare at $955

3 stores
IGI
Save 32.3%

3.05ct | Marquise | G | VS1 | Ideal

From $646

Compare at $955

3 stores
IGI
Save 32.3%

3.05ct | Marquise | G | VVS2 | Ideal

From $646

Compare at $955

3 stores
3.09ct | Marquise | G | VS1 | ExcellentIGI
Save 33.1%

3.09ct | Marquise | G | VS1 | Excellent

From $647

Compare at $968

3 stores
3.09ct | Marquise | G | VS1 | ExcellentIGI
Save 33.1%

3.09ct | Marquise | G | VS1 | Excellent

From $647

Compare at $968

3 stores
3.09ct | Marquise | G | VS1 | ExcellentIGI
Save 67.9%

3.09ct | Marquise | G | VS1 | Excellent

From $647

Compare at $2,016

5 stores
3.09ct | Marquise | G | VS1 | ExcellentIGI
Save 33.1%

3.09ct | Marquise | G | VS1 | Excellent

From $647

Compare at $968

3 stores
3.06ct | Marquise | G | VS1 | IdealIGI
Save 32.4%

3.06ct | Marquise | G | VS1 | Ideal

From $648

Compare at $959

3 stores
3.1ct | Marquise | G | VS1 | ExcellentIGI
Save 67.9%

3.1ct | Marquise | G | VS1 | Excellent

From $649

Compare at $2,023

5 stores
3.1ct | Marquise | G | VS1 | IdealIGI
Save 33.2%

3.1ct | Marquise | G | VS1 | Ideal

From $649

Compare at $971

3 stores
3.1ct | Marquise | G | VS1 | IdealIGI
Save 33.2%

3.1ct | Marquise | G | VS1 | Ideal

From $649

Compare at $971

3 stores
3.1ct | Marquise | G | VS1 | IdealIGI
Save 33.2%

3.1ct | Marquise | G | VS1 | Ideal

From $649

Compare at $971

3 stores
IGI
Save 32.5%

3.07ct | Marquise | G | VVS2 | Ideal

From $649

Compare at $962

3 stores
3.08ct | Marquise | G | VVS2 | ExcellentIGI
Save 68%

3.08ct | Marquise | G | VVS2 | Excellent

From $651

Compare at $2,032

5 stores
3.08ct | Marquise | G | VVS2 | ExcellentIGI
Save 68%

3.08ct | Marquise | G | VVS2 | Excellent

From $651

Compare at $2,032

5 stores
3.08ct | Marquise | G | VS1 | IdealIGI
Save 68%

3.08ct | Marquise | G | VS1 | Ideal

From $651

Compare at $2,032

5 stores
3.08ct | Marquise | G | VS1 | IdealIGI
Save 68%

3.08ct | Marquise | G | VS1 | Ideal

From $651

Compare at $2,032

5 stores
3.09ct | Marquise | G | VVS2 | IdealIGI
Save 68%

3.09ct | Marquise | G | VVS2 | Ideal

From $652

Compare at $2,038

5 stores
3.09ct | Marquise | G | VS1 | ExcellentIGI
Save 68%

3.09ct | Marquise | G | VS1 | Excellent

From $652

Compare at $2,038

5 stores
IGI
Save 32.6%

3.09ct | Marquise | G | VVS2 | Ideal

From $652

Compare at $968

3 stores
3.09ct | Marquise | G | VVS2 | ExcellentIGI
Save 32.6%

3.09ct | Marquise | G | VVS2 | Excellent

From $652

Compare at $968

3 stores
3.09ct | Marquise | G | VS1 | IdealIGI
Save 32.6%

3.09ct | Marquise | G | VS1 | Ideal

From $652

Compare at $968

3 stores
3.09ct | Marquise | G | VVS2 | IdealIGI
Save 32.6%

3.09ct | Marquise | G | VVS2 | Ideal

From $652

Compare at $968

3 stores
IGI
Save 32.7%

3.1ct | Marquise | G | VVS2 | Ideal

From $654

Compare at $971

3 stores
3.1ct | Marquise | G | VVS2 | IdealIGI
Save 68%

3.1ct | Marquise | G | VVS2 | Ideal

From $654

Compare at $2,044

5 stores
3.1ct | Marquise | G | VS1 | IdealIGI
Save 68%

3.1ct | Marquise | G | VS1 | Ideal

From $654

Compare at $2,044

5 stores
3.1ct | Marquise | G | VVS2 | IdealIGI
Save 32.7%

3.1ct | Marquise | G | VVS2 | Ideal

From $654

Compare at $971

3 stores
3.1ct | Marquise | G | VVS2 | IdealIGI
Save 68%

3.1ct | Marquise | G | VVS2 | Ideal

From $654

Compare at $2,044

5 stores
3.06ct | Marquise | G | VS1 | IdealIGI
Save 33.8%

3.06ct | Marquise | G | VS1 | Ideal

From $658

Compare at $994

3 stores
3.06ct | Marquise | G | VS1 | ExcellentIGI
Save 80.5%

3.06ct | Marquise | G | VS1 | Excellent

From $658

Compare at $3,380

6 stores
3.06ct | Marquise | G | VS1 | IdealIGI
Save 33.8%

3.06ct | Marquise | G | VS1 | Ideal

From $658

Compare at $994

3 stores
3.06ct | Marquise | I | VS1 | ExcellentIGI
Save 27.5%

3.06ct | Marquise | I | VS1 | Excellent

From $661

Compare at $912

3 stores
3.05ct | Marquise | G | VVS2 | Very GoodIGI
Save 80.6%

3.05ct | Marquise | G | VVS2 | Very Good

From $661

Compare at $3,410

6 stores
3.05ct | Marquise | G | VS1 | ExcellentIGI
Save 34%

3.05ct | Marquise | G | VS1 | Excellent

From $661

Compare at $1,002

3 stores
3.05ct | Marquise | G | VVS2 | IdealIGI
Save 34%

3.05ct | Marquise | G | VVS2 | Ideal

From $661

Compare at $1,002

3 stores
3.05ct | Marquise | G | VVS2 | IdealIGI
Save 80.6%

3.05ct | Marquise | G | VVS2 | Ideal

From $661

Compare at $3,410

6 stores
3.05ct | Marquise | G | VS1 | IdealIGI
Save 80.6%

3.05ct | Marquise | G | VS1 | Ideal

From $661

Compare at $3,410

6 stores
3.05ct | Marquise | G | VS1 | IdealIGI
Save 34%

3.05ct | Marquise | G | VS1 | Ideal

From $661

Compare at $1,002

3 stores
3.09ct | Marquise | G | VS1 | ExcellentIGI
Save 34%

3.09ct | Marquise | G | VS1 | Excellent

From $662

Compare at $1,003

3 stores
3.06ct | Marquise | G | VVS2 | ExcellentIGI
Save 34.8%

3.06ct | Marquise | G | VVS2 | Excellent

From $663

Compare at $1,017

3 stores
3.06ct | Marquise | G | VVS2 | IdealIGI
Save 34.8%

3.06ct | Marquise | G | VVS2 | Ideal

From $663

Compare at $1,017

3 stores
3.06ct | Marquise | G | VS2 | IdealIGI
Save 85.4%

3.06ct | Marquise | G | VS2 | Ideal

From $663

Compare at $4,530

4 stores

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