Oval|Lab Grown|IGI

4.00ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG841645925

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG841645925

Diamond specifications and retailer prices

From £2,020 GBP

As of October 30, 2026

Save £12,721 GBP (86%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: £14,741 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG841645925 or 841645925. Listed at 23 retailers as of October 29, 2026, with prices from £2,020 to £14,741, a £12,721 spread on the same certified stone. Brilliant Earth lists it at £14,741. 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

4.00

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.1°

Pavilion angle40.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG841645925

Dimensions12.64 × 8.99 × 5.55 mm

L/W Ratio1.41

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG841645925

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: £14,741 GBP|Low: £2,020 GBP|High: £14,741 GBP|Avg: £4,794 GBP

Brilliant Earth

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October 30, 2026

Retailer 13£2,020 GBP

Retailer 20£2,085 GBP

Retailer 6£2,284 GBP

Retailer 9£2,435 GBP

Retailer 14£2,435 GBP

Retailer 11£2,521 GBP

Retailer 8£2,557 GBP

Retailer 12£3,136 GBP

Retailer 18£3,267 GBP

Retailer 15£3,348 GBP

Retailer 5£3,499 GBP

Retailer 4£3,749 GBP

Retailer 7£3,789 GBP

Retailer 10£3,885 GBP

Retailer 21£4,166 GBP

Retailer 3£4,843 GBP

Retailer 22£5,184 GBP

Retailer 24£5,226 GBP

Retailer 16£6,161 GBP

Retailer 23£6,206 GBP

Retailer 2£6,740 GBP

Retailer 19£8,428 GBP

Retailer 17£11,479 GBP

Brilliant Earth£14,741 GBP

26 data points across 24 retailers

23 retailers£2,020 GBP to £14,741 GBP

Cheapest Retailer

£2,020 GBP

Retailer 2

£2,085 GBP

$2,776 USD

View

Retailer 3

£2,284 GBP

$3,042 USD

View

Retailer 4

£2,435 GBP

$3,243 USD

View

Price last confirmed 17 days ago

Retailer 5

£2,435 GBP

$3,243 USD

View

Retailer 6

£2,521 GBP

$3,357 USD

View

Retailer 7

£2,557 GBP

$3,405 USD

View

Retailer 8

£3,136 GBP

$4,176 USD

View

Final sale: no returns

Retailer 9

£3,267 GBP

View

Retailer 10

£3,348 GBP

$4,458 USD

View

Retailer 11

£3,499 GBP

$4,660 USD

View

Retailer 12

£3,789 GBP

$5,046 USD

View

Retailer 13

£3,885 GBP

$5,173 USD

View

Retailer 14

£4,166 GBP

View

B+

Retailer 15

£4,843 GBP

$6,450 USD

View

B+

Retailer 16

£5,184 GBP

ZAR 111,522 ZAR

View

Retailer 17

£5,226 GBP

A$10,706 AUD

View

Price last confirmed 7 days ago

B+

Retailer 18

£6,161 GBP

$8,204 USD

View

B+

Retailer 19

£6,206 GBP

View

B+

Retailer 20

£6,740 GBP

$8,976 USD

View

B+

Retailer 21

£8,428 GBP

$11,223 USD

View

Retailer 22

£11,479 GBP

A$23,518 AUD

View

Price last confirmed 21 days ago

Most Expensive

Brilliant Earth

21696522A · Oct 29

£14,741 GBP

$19,630 USD

View

22 more retailers have this diamond

Prices start from £2,020 GBPSave up to £12,721 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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