Princess|Lab Grown|IGI

2.91ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG768631087

Shape and cutting style on the report: Princess cut

Certificate IGI LG768631087

Diamond specifications and retailer prices

From £992 GBP

$1,321 USD

As of October 30, 2026

Save £6,900 GBP (87%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £7,892 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 2.91ct lab-grown princess diamond

This 2.91ct lab-grown princess sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768631087 or 768631087. Listed at 17 retailers as of October 29, 2026, with prices from £992 to £7,892, a £6,900 spread on the same certified stone. Brilliant Earth lists it at £7,892. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.91

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle39.3°

Pavilion angle37.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG768631087

Dimensions7.89 × 7.89 × 7.86 mm

L/W Ratio1.00

Culet sizePointed

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG768631087

Side View

Caratlytics Score

How it works →

A+

Exceptional

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30

Current: £7,892 GBP|Low: £992 GBP|High: £8,140 GBP|Avg: £3,649 GBP|-3.0%

Brilliant Earth

Retailer 2

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Retailer 17

October 30, 2026

Retailer 10£992 GBP

Retailer 4£1,197 GBP

Retailer 3£1,314 GBP

Retailer 16£1,365 GBP

Retailer 11£2,000 GBP

Retailer 15£2,012 GBP

Retailer 9£2,017 GBP

Retailer 12£2,082 GBP

Retailer 17£2,316 GBP

Retailer 14£2,380 GBP

Retailer 13£3,224 GBP

Retailer 5£3,422 GBP

Retailer 7£4,132 GBP

Retailer 6£4,558 GBP

Retailer 2£6,826 GBP

Retailer 8£7,023 GBP

Brilliant Earth£7,892 GBP

33 data points across 17 retailers

17 retailers£992 GBP to £7,892 GBP

A+

Cheapest Retailer

£992 GBP

$1,321 USD

Retailer 2

£1,197 GBP

$1,594 USD

View

Retailer 3

£1,314 GBP

$1,750 USD

View

Retailer 4

£1,365 GBP

$1,818 USD

View

Retailer 5

£2,000 GBP

$2,663 USD

View

Retailer 6

£2,012 GBP

$2,679 USD

View

Retailer 7

£2,017 GBP

$2,686 USD

View

Final sale: no returns

Retailer 8

£2,082 GBP

€2,641 EUR

View

Retailer 9

£2,316 GBP

$3,084 USD

View

Retailer 10

£2,380 GBP

$3,169 USD

View

Retailer 11

£3,224 GBP

$4,293 USD

View

Retailer 12

£3,422 GBP

A$7,011 AUD

View

Price last confirmed 7 days ago

Retailer 13

£4,132 GBP

View

Price last confirmed 8 days ago

B+

Retailer 14

£4,558 GBP

$6,070 USD

View

Retailer 15

£6,826 GBP

$9,090 USD

View

Retailer 16

£7,023 GBP

A$14,388 AUD

View

Price last confirmed 21 days ago

Most Expensive

Brilliant Earth

18070555Y · Oct 29

£7,892 GBP

$10,510 USD

View

16 more retailers have this diamond

Prices start from £992 GBPSave up to £6,900 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

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A+

2.91ct Princess

£992 GBP