Heart|Lab Grown|IGI

20.11ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG774691137

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG774691137

Diamond specifications and retailer prices

From £7,577 GBP

$10,162 USD

As of November 2, 2026

Save £19,492 GBP (72%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: £27,070 GBP at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 20.11ct lab-grown heart diamond

This 20.11ct 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 LG774691137 or 774691137. Listed at 14 retailers as of October 31, 2026, with prices from £7,577 to £27,070, a £19,492 spread on the same certified stone. Taylor and Hart lists it at £27,070. 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

20.11

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.1°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG774691137

Dimensions15.75 × 18.31 × 11.48 mm

L/W Ratio1.16

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG774691137

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: £9,383 GBP|Low: £7,577 GBP|High: £29,413 GBP|Avg: £12,274 GBP|+1.5%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Taylor and Hart

November 2, 2026

Retailer 12£7,577 GBP

Retailer 8£7,881 GBP

Retailer 4£8,107 GBP

Retailer 3£8,238 GBP

Retailer 2£8,486 GBP

Retailer 9£8,683 GBP

Retailer 11£8,790 GBP

Retailer 1£9,383 GBP

Retailer 7£9,472 GBP

Retailer 6£10,369 GBP

Retailer 5£16,623 GBP

Retailer 10£18,740 GBP

Taylor and Hart£27,070 GBP

22 data points across 13 retailers

14 retailers£7,577 GBP to £27,070 GBP

Cheapest Retailer

£7,577 GBP

$10,162 USD

Retailer 2

£7,881 GBP

$10,569 USD

View

Retailer 3

£8,107 GBP

$10,872 USD

View

B+

Retailer 4

£8,238 GBP

$11,048 USD

View

B+

Retailer 5

£8,486 GBP

$11,381 USD

View

Final sale: no returns

B+

Retailer 6

£8,683 GBP

$11,645 USD

View

B+

Retailer 7

£8,790 GBP

$11,788 USD

View

Retailer 8

£8,790 GBP

$11,788 USD

View

Price last confirmed 22 days ago

B+

Retailer 9

£9,383 GBP

$12,583 USD

View

B+

Retailer 10

£9,472 GBP

$12,703 USD

View

B+

Retailer 11

£10,369 GBP

View

Retailer 12

£16,623 GBP

A$34,296 AUD

View

Retailer 13

£18,740 GBP

$25,132 USD

View

Most Expensive

Taylor and Hart

4PI63TX · Oct 31

£27,070 GBP

$36,303 USD

View

13 more retailers have this diamond

Prices start from £7,577 GBPSave up to £19,492 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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20.11ct Heart

£7,577 GBP