Round|Lab Grown|IGI

8.21ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG560236389

Shape and cutting style on the report: Round brilliant

Certificate IGI LG560236389

Diamond specifications and retailer prices

From £1,084 GBP

$1,453 USD

As of October 29, 2026

Save £5,722 GBP (84%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £6,807 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 8.21ct lab-grown round diamond

This 8.21ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG560236389 or 560236389. Listed at 22 retailers as of October 29, 2026, with prices from £1,084 to £6,807, a £5,722 spread on the same certified stone. Brilliant Earth lists it at £6,807. 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

8.21

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.4°

Pavilion angle40.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG560236389

Dimensions12.90 × 12.84 × 7.99 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG560236389

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: £6,807 GBP|Low: £934 GBP|High: £7,642 GBP|Avg: £2,718 GBP|-10.9%

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

Retailer 19

Retailer 20

Retailer 21

Retailer 22

Retailer 23

November 1, 2026

Retailer 3£1,084 GBP

Retailer 22£1,180 GBP

Retailer 10£1,214 GBP

Retailer 14£1,258 GBP

Retailer 23£1,258 GBP

Retailer 17£1,384 GBP

Retailer 7£1,628 GBP

Retailer 18£1,651 GBP

Retailer 2£1,754 GBP

Retailer 21£1,806 GBP

Retailer 11£1,983 GBP

Retailer 19£2,110 GBP

Retailer 8£2,283 GBP

Retailer 13£2,330 GBP

Retailer 4£2,358 GBP

Retailer 9£3,256 GBP

Retailer 15£3,391 GBP

Retailer 20£3,611 GBP

Retailer 12£3,695 GBP

Retailer 5£4,351 GBP

Retailer 16£4,428 GBP

Retailer 6£6,075 GBP

Brilliant Earth£6,807 GBP

29 data points across 23 retailers

22 retailers£1,084 GBP to £6,807 GBP

Cheapest Retailer

£1,084 GBP

$1,453 USD

Retailer 2

£1,180 GBP

$1,581 USD

View

Retailer 3

£1,258 GBP

$1,685 USD

View

Price last confirmed 21 days ago

Retailer 4

£1,258 GBP

$1,685 USD

View

Retailer 5

£1,384 GBP

$1,855 USD

View

Retailer 6

£1,628 GBP

$2,182 USD

View

Retailer 7

£1,651 GBP

View

B+

Retailer 8

£1,754 GBP

View

Retailer 9

£1,806 GBP

€2,304 EUR

View

B+

Retailer 10

£1,983 GBP

$2,657 USD

View

B+

Retailer 11

£2,110 GBP

ZAR 45,665 ZAR

View

B+

Retailer 12

£2,283 GBP

$3,059 USD

View

B+

Retailer 13

£2,330 GBP

A$4,804 AUD

View

B+

Retailer 14

£2,358 GBP

$3,159 USD

View

Retailer 15

£3,256 GBP

$4,363 USD

View

Retailer 16

£3,391 GBP

$4,543 USD

View

Retailer 17

£3,611 GBP

View

Retailer 18

£3,695 GBP

$4,951 USD

View

Price last confirmed 20 days ago

Retailer 19

£4,351 GBP

$5,830 USD

View

Price last confirmed 10 days ago

Retailer 20

£4,428 GBP

$5,933 USD

View

Retailer 21

£6,075 GBP

$8,140 USD

View

Most Expensive

Brilliant Earth

7625997A · Oct 31

£6,807 GBP

$9,120 USD

View

21 more retailers have this diamond

Prices start from £1,084 GBPSave up to £5,722 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.

Similar diamonds

8.21ct Round

£1,084 GBP