Oval|Lab Grown|IGI

1.23ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG836620697

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836620697

Diamond specifications and retailer prices

From £180 GBP

$240 USD

As of October 29, 2026

Save £2,088 GBP (92%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £2,268 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620697 or 836620697. Listed at 17 retailers as of October 29, 2026, with prices from £180 to £2,268, a £2,088 spread on the same certified stone. Brilliant Earth lists it at £2,268. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.7°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG836620697

Dimensions8.90 × 6.03 × 3.66 mm

L/W Ratio1.48

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 LG836620697

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: £2,268 GBP|Low: £179 GBP|High: £2,268 GBP|Avg: £640 GBP

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

Retailer 16

Retailer 17

Retailer 18

October 30, 2026

Retailer 17£180 GBP

Retailer 3£201 GBP

Retailer 14£209 GBP

Retailer 6£223 GBP

Retailer 12£223 GBP

Retailer 15£377 GBP

Retailer 8£382 GBP

Retailer 11£383 GBP

Retailer 2£423 GBP

Retailer 18£605 GBP

Retailer 5£717 GBP

Retailer 16£720 GBP

Retailer 9£747 GBP

Retailer 4£757 GBP

Retailer 10£818 GBP

Retailer 13£896 GBP

Retailer 7£1,686 GBP

Brilliant Earth£2,268 GBP

36 data points across 18 retailers

17 retailers£180 GBP to £2,268 GBP

Cheapest Retailer

£180 GBP

$240 USD

Retailer 2

£201 GBP

$268 USD

View

Final sale: no returns

Retailer 3

£209 GBP

$278 USD

View

Retailer 4

£223 GBP

$297 USD

View

Retailer 5

£223 GBP

$297 USD

View

Retailer 6

£377 GBP

$502 USD

View

Retailer 7

£383 GBP

ZAR 8,250 ZAR

View

Retailer 8

£423 GBP

View

B+

Retailer 9

£605 GBP

$806 USD

View

B+

Retailer 10

£717 GBP

$955 USD

View

B+

Retailer 11

£720 GBP

$959 USD

View

B+

Retailer 12

£747 GBP

SGD 1,344 SGD

View

B+

Retailer 13

£757 GBP

$1,008 USD

View

B+

Retailer 14

£811 GBP

$1,080 USD

View

B+

Retailer 15

£896 GBP

View

Retailer 16

£1,686 GBP

$2,245 USD

View

Price last confirmed 8 days ago

Most Expensive

Brilliant Earth

21433552A · Oct 29

£2,268 GBP

$3,020 USD

View

16 more retailers have this diamond

Prices start from £180 GBPSave up to £2,088 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.

Where to buy this spec

See every retailer carrying 1.23ct E FL oval lab-grown

Ranked by inventory count, with return policy, certs, and trust signals.

Similar diamonds

1.23ct Oval

£180 GBP