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Browse our exceptional selection of 1 carat diamonds, available in a range of shapes, styles and colors. 1 ct diamonds are an excellent choice no matter what piece of jewelry you want to showcase. Shop with confidence at JamesAllen.com, we guarantee conflict free diamonds, exceptional quality, and a certification report. We also carry earth and lab created diamonds.

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Lab-Created 1.00 Carat E SI1 Ideal Cut round diamond

$1,340

Lab-Created 1.00 Carat E SI1 Ideal Cut round diamond

$1,410

Lab-Created 1.00 Carat E SI1 Ideal Cut round diamond

$1,410

10% off Lab Created True Hearts Diamonds.

Exclusions apply

Lab-Created 1.00 Carat E SI1 Ideal Cut round diamond

$1,410

Lab-Created 1.00 Carat E SI1 Excellent Cut round diamond

$1,410

Lab-Created 1.00 Carat E SI1 Excellent Cut round diamond

$1,410

Lab-Created 1.00 Carat E SI1 Ideal Cut round diamond

$1,410

Lab-Created 1.00 Carat E VS2 Ideal Cut round diamond

$1,660

$1,490

Lab-Created 1.00 Carat E VS1 Ideal Cut round diamond

$1,680

$1,510

Lab-Created 1.00 Carat D VS2 Ideal Cut round diamond

$1,750

$1,580

Lab-Created 1.00 Carat E VS1 Ideal Cut round diamond

$1,620

Lab-Created 1.00 Carat F VS2 Ideal Cut round diamond

$1,630

Lab-Created 1.00 Carat G VS1 Ideal Cut round diamond

$1,640

Lab-Created 1.00 Carat G VS1 Ideal Cut round diamond

$1,640

Lab-Created 1.00 Carat G VS1 Excellent Cut round diamond

$1,640

Lab-Created 1.00 Carat G VS1 Ideal Cut round diamond

$1,640

Lab-Created 1.00 Carat G VS1 Ideal Cut round diamond

$1,640

Lab-Created 1.00 Carat G VS1 Excellent Cut round diamond

$1,640

Lab-Created 1.00 Carat F VS1 Excellent Cut round diamond

$1,650

Lab-Created 1.00 Carat F VS1 Ideal Cut round diamond

$1,650

Lab-Created 1.00 Carat E VS2 Ideal Cut round diamond

$1,660

Lab-Created 1.00 Carat E VS2 Ideal Cut round diamond

$1,660

Lab-Created 1.00 Carat E VS2 Ideal Cut round diamond

$1,660

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*Offer applies to ring setting only. Does not include loose diamonds, gemstones, or designer collections. Promotional discounts applied to an order are only valid for the item purchased and will not be applied to future purchases or exchanges after the sale ends. Cannot be combined with any other offer.

*Offer applies to setting only. Does not include designer collections. Promotional discounts applied to an order are only valid for the item purchased and will not be applied to future purchases or exchanges after the sale ends. Cannot be combined with any other offer. Promotion ends June 13, 2019 at 11:59pm EST.

*With the purchase of any single True Hearts diamond, receive 25% off your ring setting. Excludes designer collections. Cannot be combined with any other offer.

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