Heart|Lab Grown|IGI

20.12ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG802624683

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG802624683

Diamond specifications and retailer prices

From £6,092 GBP

As of November 2, 2026

Save £21,489 GBP (78%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: £27,581 GBP at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 20.12ct lab-grown heart diamond

This 20.12ct lab-grown heart 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 LG802624683 or 802624683. Listed at 14 retailers as of October 31, 2026, with prices from £6,092 to £27,581, a £21,489 spread on the same certified stone. Taylor and Hart lists it at £27,581. 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

20.12

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle40.1°

Pavilion angle32.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG802624683

Dimensions18.87 × 15.69 × 10.69 mm

L/W Ratio1.20

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 LG802624683

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: Nov 2

Current: £8,304 GBP|Low: £6,092 GBP|High: £29,530 GBP|Avg: £11,481 GBP|-20.3%

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

Taylor and Hart

November 3, 2026

Retailer 8£6,092 GBP

Retailer 6£7,323 GBP

Retailer 2£7,815 GBP

Retailer 11£8,128 GBP

Retailer 1£8,304 GBP

Retailer 5£8,393 GBP

Retailer 3£8,496 GBP

Retailer 4£8,952 GBP

Retailer 10£9,039 GBP

Retailer 12£9,066 GBP

Retailer 7£9,070 GBP

Retailer 9£17,134 GBP

Retailer 13£18,839 GBP

Taylor and Hart£27,581 GBP

35 data points across 14 retailers

14 retailers£6,092 GBP to £27,581 GBP

Cheapest Retailer

£6,092 GBP

B+

Retailer 2

£7,323 GBP

$9,821 USD

View

Final sale: no returns

B+

Retailer 3

£7,815 GBP

$10,481 USD

View

B+

Retailer 4

£8,128 GBP

$10,900 USD

View

B+

Retailer 5

£8,304 GBP

$11,136 USD

View

B+

Retailer 6

£8,393 GBP

$11,256 USD

View

B+

Retailer 7

£8,496 GBP

$11,394 USD

View

B+

Retailer 8

£8,952 GBP

$12,005 USD

View

B+

Retailer 9

£9,039 GBP

$12,122 USD

View

Retailer 10

£9,066 GBP

$12,158 USD

View

Price last confirmed 22 days ago

B+

Retailer 11

£9,070 GBP

View

Retailer 12

£17,134 GBP

A$35,350 AUD

View

Retailer 13

£18,839 GBP

$25,265 USD

View

Most Expensive

Taylor and Hart

6PTYT4W · Oct 31

£27,581 GBP

$36,988 USD

View

13 more retailers have this diamond

Prices start from £6,092 GBPSave up to £21,489 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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20.12ct Heart

£6,092 GBP