Heart|Lab Grown|IGI

12.13ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG628489578

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG628489578

Diamond specifications and retailer prices

From £3,251 GBP

As of November 2, 2026

Save £11,235 GBP (78%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: £14,485 GBP at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 12.13ct lab-grown heart diamond

This 12.13ct 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 LG628489578 or 628489578. Listed at 20 retailers as of October 31, 2026, with prices from £3,251 to £14,485, a £11,235 spread on the same certified stone. Taylor and Hart lists it at £14,485. 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

12.13

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.5°

Pavilion angle39.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG628489578

Dimensions13.66 × 16.11 × 9.45 mm

L/W Ratio1.18

Girdle conditionFaceted

Culet sizePointed

Cert comments

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG628489578

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: £5,212 GBP|Low: £3,250 GBP|High: £11,250 GBP|Avg: £5,953 GBP|-0.5%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

Retailer 16

November 3, 2026

Retailer 9£3,251 GBP

Retailer 15£3,490 GBP

Retailer 5£3,908 GBP

Retailer 4£4,048 GBP

Retailer 16£4,048 GBP

Retailer 12£4,050 GBP

Retailer 8£4,092 GBP

Retailer 3£5,058 GBP

Retailer 14£5,169 GBP

Retailer 1£5,212 GBP

Retailer 2£6,259 GBP

Retailer 13£6,265 GBP

Retailer 11£7,593 GBP

Retailer 10£7,668 GBP

Retailer 7£11,156 GBP

Retailer 6£11,250 GBP

41 data points across 16 retailers

20 retailers£3,251 GBP to £14,485 GBP

Cheapest Retailer

£3,251 GBP

Retailer 2

£3,490 GBP

$4,683 USD

View

Retailer 3

£3,657 GBP

$4,907 USD

View

Retailer 4

£3,854 GBP

HK$40,400 HKD

View

Retailer 5

£3,908 GBP

$5,244 USD

View

Final sale: no returns

Retailer 6

£4,048 GBP

$5,432 USD

View

Retailer 7

£4,048 GBP

$5,432 USD

View

Price last confirmed 21 days ago

Retailer 8

£4,050 GBP

$5,435 USD

View

Retailer 9

£4,092 GBP

$5,491 USD

View

B+

Retailer 10

£5,058 GBP

$6,787 USD

View

B+

Retailer 11

£5,169 GBP

$6,937 USD

View

B+

Retailer 12

£5,212 GBP

View

B+

Retailer 13

£6,259 GBP

$8,399 USD

View

B+

Retailer 14

£6,265 GBP

ZAR 135,824 ZAR

View

Retailer 15

£7,056 GBP

$9,469 USD

View

Retailer 16

£7,593 GBP

$10,189 USD

View

Retailer 17

£7,668 GBP

A$15,830 AUD

View

Retailer 18

£11,156 GBP

SGD 20,231 SGD

View

Retailer 19

£11,250 GBP

$15,097 USD

View

Most Expensive

Taylor and Hart

7TQ4J77 · Oct 31

£14,485 GBP

$19,438 USD

View

19 more retailers have this diamond

Prices start from £3,251 GBPSave up to £11,235 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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12.13ct Heart

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