Cushion|Lab Grown|IGI

3.18ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG790626874

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG790626874

Diamond specifications and retailer prices

From £702 GBP

$935 USD

As of October 25, 2026

Save £5,410 GBP (89%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: £6,113 GBP at Brilliant Earth · As of October 24, 2026

View at Brilliant Earth

About this 3.18ct lab-grown cushion diamond

This 3.18ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG790626874 or 790626874. Listed at 19 retailers as of October 24, 2026, with prices from £702 to £6,113, a £5,410 spread on the same certified stone. Brilliant Earth lists it at £6,113. 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

3.18

Carat

Colour

VVS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle28.2°

Pavilion angle37.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG790626874

Dimensions10.22 × 8.15 × 5.16 mm

L/W Ratio1.25

Girdle conditionFaceted

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 LG790626874

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 25

Current: £6,113 GBP|Low: £547 GBP|High: £6,300 GBP|Avg: £1,831 GBP|-3.0%

Brilliant Earth

Retailer 2

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October 25, 2026

Retailer 7£547 GBP

Retailer 16£662 GBP

Retailer 18£702 GBP

Retailer 4£858 GBP

Retailer 13£897 GBP

Retailer 2£922 GBP

Retailer 8£927 GBP

Retailer 17£1,289 GBP

Retailer 15£1,290 GBP

Retailer 14£1,306 GBP

Retailer 5£1,466 GBP

Retailer 3£1,762 GBP

Retailer 9£1,913 GBP

Retailer 19£1,937 GBP

Retailer 6£1,960 GBP

Retailer 12£2,396 GBP

Retailer 10£2,663 GBP

Retailer 11£3,188 GBP

Brilliant Earth£6,113 GBP

34 data points across 19 retailers

19 retailers£702 GBP to £6,113 GBP

Retailer 1

£662 GBP

Price last confirmed 11 days ago

Retailer 2

£702 GBP

$935 USD

View

Retailer 3

£858 GBP

$1,142 USD

View

Retailer 4

£897 GBP

View

Retailer 5

£922 GBP

€1,169 EUR

View

Retailer 6

£927 GBP

$1,235 USD

View

Price last confirmed 9 days ago

Retailer 7

£1,289 GBP

$1,717 USD

View

Price last confirmed 7 days ago

Retailer 8

£1,290 GBP

A$2,643 AUD

View

Price last confirmed 9 days ago

Retailer 9

£1,306 GBP

ZAR 28,103 ZAR

View

Retailer 10

£1,466 GBP

$1,952 USD

View

B+

Retailer 11

£1,762 GBP

View

B+

Retailer 12

£1,833 GBP

$2,441 USD

View

B+

Retailer 13

£1,913 GBP

SGD 3,442 SGD

View

B+

Retailer 14

£1,937 GBP

$2,579 USD

View

B+

Retailer 15

£1,960 GBP

$2,609 USD

View

B+

Retailer 16

£2,396 GBP

View

Retailer 17

£2,663 GBP

A$5,456 AUD

View

Price last confirmed 22 days ago

Retailer 18

£3,188 GBP

$4,245 USD

View

Price last confirmed 25 days ago

Most Expensive

Brilliant Earth

18673139A · Oct 24

£6,113 GBP

$8,140 USD

View

18 more retailers have this diamond

Prices start from £702 GBPSave up to £5,410 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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