Radiant|Lab Grown|IGI

2.91ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG784642584

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG784642584

Diamond specifications and retailer prices

From £621 GBP

$832 USD

As of October 30, 2026

Save £7,201 GBP (92%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £7,822 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 2.91ct lab-grown radiant diamond

This 2.91ct lab-grown radiant 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 LG784642584 or 784642584. Listed at 16 retailers as of October 29, 2026, with prices from £621 to £7,822, a £7,201 spread on the same certified stone. Brilliant Earth lists it at £7,822. 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

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle39.9°

Pavilion angle36°

OriginLab Grown

Grading LabIGI

CertificateIGI LG784642584

Dimensions9.94 × 7.00 × 4.86 mm

L/W Ratio1.42

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG784642584

Side View

Caratlytics Score

How it works →

Excellent

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: £7,822 GBP|Low: £568 GBP|High: £8,068 GBP|Avg: £2,664 GBP|-3.1%

Brilliant Earth

Retailer 2

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Retailer 17

October 30, 2026

Retailer 2£621 GBP

Retailer 17£743 GBP

Retailer 8£796 GBP

Retailer 15£924 GBP

Retailer 6£940 GBP

Retailer 14£1,270 GBP

Retailer 3£1,420 GBP

Retailer 16£1,763 GBP

Retailer 11£1,907 GBP

Retailer 4£2,114 GBP

Retailer 13£2,236 GBP

Retailer 12£2,711 GBP

Retailer 9£2,934 GBP

Retailer 7£3,485 GBP

Retailer 5£3,993 GBP

Retailer 10£5,515 GBP

Brilliant Earth£7,822 GBP

35 data points across 17 retailers

16 retailers£621 GBP to £7,822 GBP

Cheapest Retailer

£621 GBP

$832 USD

Retailer 2

£743 GBP

$996 USD

View

Retailer 3

£796 GBP

$1,066 USD

View

Final sale: no returns

Retailer 4

£924 GBP

$1,238 USD

View

Retailer 5

£940 GBP

$1,260 USD

View

Retailer 6

£1,270 GBP

$1,702 USD

View

Retailer 7

£1,420 GBP

€1,812 EUR

View

Retailer 8

£1,763 GBP

$2,362 USD

View

Retailer 9

£1,907 GBP

$2,555 USD

View

Retailer 10

£2,114 GBP

A$4,358 AUD

View

Price last confirmed 8 days ago

B+

Retailer 11

£2,236 GBP

$2,996 USD

View

B+

Retailer 12

£2,711 GBP

View

Retailer 13

£3,485 GBP

A$7,183 AUD

View

Price last confirmed 27 days ago

Retailer 14

£3,993 GBP

$5,350 USD

View

Price last confirmed 9 days ago

Retailer 15

£5,515 GBP

$7,390 USD

View

Most Expensive

Brilliant Earth

20496009Y · Oct 29

£7,822 GBP

$10,480 USD

View

15 more retailers have this diamond

Prices start from £621 GBPSave up to £7,201 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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