Heart|Lab Grown|IGI

18.12ct F VS2 Heart Lab Grown Diamond

ID • F/VS2 • IGI LG776651106

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG776651106

Diamond specifications and retailer prices

From £5,403 GBP

$7,250 USD

As of November 3, 2026

Save £16,536 GBP (75%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: £21,938 GBP at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 18.12ct lab-grown heart diamond

This 18.12ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG776651106 or 776651106. Listed at 12 retailers as of November 2, 2026, with prices from £5,403 to £21,938, a £16,536 spread on the same certified stone. Brilliant Earth lists it at £21,938. 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

18.12

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35°

Pavilion angle31.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG776651106

Dimensions17.42 × 16.16 × 9.52 mm

L/W Ratio1.08

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG776651106

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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

Price History

Last verified: Nov 3

Current: £21,938 GBP|Low: £5,403 GBP|High: £22,617 GBP|Avg: £13,430 GBP|-3.0%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

November 3, 2026

Retailer 7£5,403 GBP

Retailer 8£6,423 GBP

Retailer 2£6,709 GBP

Retailer 11£8,034 GBP

Retailer 9£8,334 GBP

Retailer 6£11,168 GBP

Retailer 5£13,909 GBP

Retailer 10£15,400 GBP

Retailer 4£18,731 GBP

Retailer 3£20,794 GBP

Brilliant Earth£21,938 GBP

Retailer 12£22,160 GBP

37 data points across 12 retailers

12 retailers£5,403 GBP to £21,938 GBP

Cheapest Retailer

£5,403 GBP

$7,250 USD

Retailer 2

£6,423 GBP

$8,619 USD

View

Retailer 3

£6,709 GBP

View

B+

Retailer 4

£8,034 GBP

$10,781 USD

View

Final sale: no returns

B+

Retailer 5

£8,334 GBP

$11,184 USD

View

B+

Retailer 6

£11,168 GBP

A$23,056 AUD

View

Retailer 7

£13,041 GBP

€16,667 EUR

View

Retailer 8

£13,909 GBP

€17,776 EUR

View

Retailer 9

£15,400 GBP

$20,666 USD

View

Retailer 10

£18,731 GBP

$25,136 USD

View

Retailer 11

£20,794 GBP

$27,905 USD

View

Price last confirmed 7 days ago

Most Expensive

Brilliant Earth

20464725A · Nov 2

£21,938 GBP

$29,440 USD

View

11 more retailers have this diamond

Prices start from £5,403 GBPSave up to £16,536 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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18.12ct Heart

£5,403 GBP