Cushion|Lab Grown|IGI

6.51ct E VS2 Cushion Lab Grown Diamond

EX • E/VS2 • IGI LG839647750

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839647750

Diamond specifications and retailer prices

From £767 GBP

$1,021 USD

As of October 27, 2026

Save £3,979 GBP (84%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £4,746 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 6.51ct lab-grown cushion diamond

This 6.51ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839647750 or 839647750. Listed at 16 retailers as of October 27, 2026, with prices from £767 to £4,746, a £3,979 spread on the same certified stone. Brilliant Earth lists it at £4,746. 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

6.51

Carat

Colour

VS2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.1°

Pavilion angle33.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG839647750

Dimensions12.63 × 9.57 × 6.30 mm

L/W Ratio1.32

Girdle conditionFaceted

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG839647750

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 27

Current: £1,203 GBP|Low: £767 GBP|High: £4,404 GBP|Avg: £2,205 GBP|-0.8%

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

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Retailer 15

October 29, 2026

Retailer 3£767 GBP

Retailer 12£854 GBP

Retailer 8£913 GBP

Retailer 11£957 GBP

Retailer 1£1,203 GBP

Retailer 13£1,216 GBP

Retailer 4£1,274 GBP

Retailer 2£2,197 GBP

Retailer 7£2,396 GBP

Retailer 15£2,486 GBP

Retailer 10£2,638 GBP

Retailer 14£2,699 GBP

Retailer 6£3,683 GBP

Retailer 9£3,770 GBP

Retailer 5£4,382 GBP

25 data points across 15 retailers

16 retailers£767 GBP to £4,746 GBP

Cheapest Retailer

£767 GBP

$1,021 USD

Final sale: no returns

Retailer 2

£854 GBP

View

Retailer 3

£913 GBP

HK$9,500 HKD

View

Retailer 4

£957 GBP

$1,275 USD

View

Retailer 5

£1,203 GBP

€1,526 EUR

View

Retailer 6

£1,216 GBP

View

B+

Retailer 7

£1,274 GBP

$1,697 USD

View

Retailer 8

£2,197 GBP

View

B+

Retailer 9

£2,396 GBP

$3,191 USD

View

B+

Retailer 10

£2,486 GBP

$3,311 USD

View

B+

Retailer 11

£2,638 GBP

SGD 4,747 SGD

View

B+

Retailer 12

£2,699 GBP

View

Retailer 13

£3,683 GBP

A$7,546 AUD

View

Price last confirmed 21 days ago

B+

Retailer 14

£3,770 GBP

$5,020 USD

View

Retailer 15

£4,382 GBP

$5,835 USD

View

Price last confirmed 11 days ago

Most Expensive

Brilliant Earth

21808577A · Oct 29

£4,746 GBP

$6,320 USD

View

15 more retailers have this diamond

Prices start from £767 GBPSave up to £3,979 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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6.51ct Cushion

£767 GBP