Round|Lab Grown|IGI

2.30ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG840617088

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840617088

Diamond specifications and retailer prices

From £643 GBP

$862 USD

As of October 29, 2026

Save £2,864 GBP (82%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £3,508 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 2.3ct lab-grown round diamond

This 2.3ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840617088 or 840617088. Listed at 18 retailers as of October 29, 2026, with prices from £643 to £3,508, a £2,864 spread on the same certified stone. Brilliant Earth lists it at £3,508. 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

2.30

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.5°

Pavilion angle40.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG840617088

Dimensions8.39 × 8.43 × 5.23 mm

L/W Ratio1.00

Girdle conditionFaceted

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 LG840617088

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 29

Current: £3,508 GBP|Low: £643 GBP|High: £5,754 GBP|Avg: £1,660 GBP|-39.0%

Brilliant Earth

Retailer 2

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October 31, 2026

Retailer 13£643 GBP

Retailer 6£699 GBP

Retailer 5£746 GBP

Retailer 9£769 GBP

Retailer 8£869 GBP

Retailer 3£877 GBP

Retailer 16£941 GBP

Retailer 12£957 GBP

Retailer 17£1,067 GBP

Retailer 2£1,133 GBP

Retailer 15£1,188 GBP

Retailer 11£1,714 GBP

Retailer 14£1,924 GBP

Retailer 4£2,097 GBP

Retailer 10£2,310 GBP

Retailer 18£2,505 GBP

Retailer 7£2,809 GBP

Brilliant Earth£3,508 GBP

16 data points across 18 retailers

18 retailers£643 GBP to £3,508 GBP

Cheapest Retailer

£643 GBP

$862 USD

Retailer 2

£699 GBP

$937 USD

View

Retailer 3

£746 GBP

$999 USD

View

Retailer 4

£769 GBP

$1,031 USD

View

Price last confirmed 14 days ago

Retailer 5

£869 GBP

HK$9,100 HKD

View

Retailer 6

£877 GBP

$1,175 USD

View

Retailer 7

£941 GBP

$1,261 USD

View

Retailer 8

£957 GBP

View

B+

Retailer 9

£1,067 GBP

$1,430 USD

View

B+

Retailer 10

£1,133 GBP

View

B+

Retailer 11

£1,188 GBP

€1,516 EUR

View

B+

Retailer 12

£1,714 GBP

$2,297 USD

View

B+

Retailer 13

£1,924 GBP

ZAR 41,651 ZAR

View

B+

Retailer 14

£2,097 GBP

$2,810 USD

View

Retailer 15

£2,310 GBP

$3,095 USD

View

Retailer 16

£2,505 GBP

SGD 4,535 SGD

View

Retailer 17

£2,809 GBP

View

Most Expensive

Brilliant Earth

22132380A · Oct 30

£3,508 GBP

$4,700 USD

View

17 more retailers have this diamond

Prices start from £643 GBPSave up to £2,864 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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2.30ct Round

£643 GBP