Cushion|Lab Grown|IGI

3.23ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG843685647

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG843685647

Diamond specifications and retailer prices

From £1,089 GBP

$1,450 USD

As of October 29, 2026

Save £6,984 GBP (87%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £8,072 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 3.23ct lab-grown cushion diamond

This 3.23ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843685647 or 843685647. Listed at 16 retailers as of October 29, 2026, with prices from £1,089 to £8,072, a £6,984 spread on the same certified stone. Brilliant Earth lists it at £8,072. 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

3.23

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.8°

Pavilion angle39°

OriginLab Grown

Grading LabIGI

CertificateIGI LG843685647

Dimensions8.44 × 8.08 × 5.73 mm

L/W Ratio1.04

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 LG843685647

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: £3,533 GBP|Low: £1,089 GBP|High: £4,566 GBP|Avg: £2,658 GBP|-11.4%

Retailer 1

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

October 30, 2026

Retailer 13£1,089 GBP

Retailer 8£1,250 GBP

Retailer 2£1,258 GBP

Retailer 9£1,597 GBP

Retailer 5£1,645 GBP

Retailer 15£1,813 GBP

Retailer 11£2,552 GBP

Retailer 14£2,620 GBP

Retailer 12£2,735 GBP

Retailer 6£2,937 GBP

Retailer 4£3,238 GBP

Retailer 1£3,533 GBP

Retailer 3£3,645 GBP

Retailer 10£3,977 GBP

Retailer 7£4,348 GBP

16 data points across 15 retailers

16 retailers£1,089 GBP to £8,072 GBP

Cheapest Retailer

£1,089 GBP

$1,450 USD

Final sale: no returns

Retailer 2

£1,250 GBP

View

Retailer 3

£1,258 GBP

$1,675 USD

View

Retailer 4

£1,597 GBP

View

Retailer 5

£1,645 GBP

$2,190 USD

View

Retailer 6

£1,813 GBP

€2,300 EUR

View

Retailer 7

£2,552 GBP

$3,399 USD

View

Retailer 8

£2,620 GBP

ZAR 56,374 ZAR

View

Retailer 9

£2,735 GBP

View

Retailer 10

£2,937 GBP

A$6,017 AUD

View

Price last confirmed 7 days ago

Retailer 11

£3,238 GBP

$4,312 USD

View

B+

Retailer 12

£3,533 GBP

$4,705 USD

View

B+

Retailer 13

£3,645 GBP

View

B+

Retailer 14

£3,977 GBP

$5,296 USD

View

Retailer 15

£4,348 GBP

$5,790 USD

View

Price last confirmed 15 days ago

Most Expensive

Brilliant Earth

22286639A · Oct 29

£8,072 GBP

$10,750 USD

View

15 more retailers have this diamond

Prices start from £1,089 GBPSave up to £6,984 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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