Round|Lab Grown|IGI

28.64ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG743546787

Shape and cutting style on the report: Round brilliant

Certificate IGI LG743546787

Diamond specifications and retailer prices

From £13,904 GBP

As of October 30, 2026

Save £29,570 GBP (68%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £43,474 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 28.64ct lab-grown round diamond

This 28.64ct 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 LG743546787 or 743546787. Listed at 16 retailers as of October 29, 2026, with prices from £13,904 to £43,474, a £29,570 spread on the same certified stone. Brilliant Earth lists it at £43,474. 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

28.64

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.4°

Pavilion angle40.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG743546787

Dimensions19.49 × 19.45 × 12.15 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG743546787

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30

Current: £43,474 GBP|Low: £13,857 GBP|High: £65,914 GBP|Avg: £28,224 GBP|-10.5%

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

October 30, 2026

Retailer 2£13,904 GBP

Retailer 3£14,558 GBP

Retailer 12£16,069 GBP

Retailer 4£16,147 GBP

Retailer 5£16,198 GBP

Retailer 11£18,365 GBP

Retailer 14£18,421 GBP

Retailer 6£18,640 GBP

Retailer 15£18,640 GBP

Retailer 9£19,201 GBP

Retailer 8£31,585 GBP

Retailer 7£34,121 GBP

Retailer 10£34,931 GBP

Retailer 13£40,558 GBP

Brilliant Earth£43,474 GBP

42 data points across 15 retailers

16 retailers£13,904 GBP to £43,474 GBP

B+

Cheapest Retailer

£13,904 GBP

B+

Retailer 2

£14,558 GBP

$19,506 USD

View

B+

Retailer 3

£16,069 GBP

$21,531 USD

View

B+

Retailer 4

£16,147 GBP

$21,635 USD

View

B+

Retailer 5

£16,198 GBP

$21,703 USD

View

Retailer 6

£18,365 GBP

$24,607 USD

View

Retailer 7

£18,421 GBP

$24,682 USD

View

Retailer 8

£18,640 GBP

$24,976 USD

View

Price last confirmed 18 days ago

Retailer 9

£18,640 GBP

$24,976 USD

View

B+

Retailer 10

£19,201 GBP

View

Retailer 11

£26,733 GBP

$35,820 USD

View

Price last confirmed 72 days ago

Retailer 12

£31,585 GBP

€40,305 EUR

View

Retailer 13

£34,121 GBP

$45,719 USD

View

Final sale: no returns

Retailer 14

£34,931 GBP

A$72,006 AUD

View

Price last confirmed 8 days ago

Retailer 15

£40,558 GBP

$54,343 USD

View

Most Expensive

Brilliant Earth

16474580A · Oct 29

£43,474 GBP

$58,250 USD

View

15 more retailers have this diamond

Prices start from £13,904 GBPSave up to £29,570 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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B+

28.64ct Round

£13,904 GBP