Heart|Lab Grown|IGI

3.55ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG835634480

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835634480

Diamond specifications and retailer prices

From £497 GBP

HK$5,200 HKD

As of October 30, 2026

Save £1,415 GBP (74%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: £1,912 GBP at MOH London · As of October 25, 2026

View at MOH London

About this 3.55ct lab-grown heart diamond

This 3.55ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG835634480 or 835634480. Listed at 14 retailers as of October 25, 2026, with prices from £497 to £1,912, a £1,415 spread on the same certified stone. MOH London lists it at £1,912. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.55

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.1°

Pavilion angle39.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG835634480

Dimensions10.74 × 9.18 × 6.26 mm

L/W Ratio1.17

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 LG835634480

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: Oct 30

Current: £1,912 GBP|Low: £413 GBP|High: £1,953 GBP|Avg: £990 GBP|-2.0%

MOH London

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

October 31, 2026

Retailer 8£413 GBP

Retailer 5£497 GBP

Retailer 3£560 GBP

Retailer 6£565 GBP

Retailer 7£711 GBP

Retailer 4£756 GBP

Retailer 9£1,051 GBP

Retailer 2£1,071 GBP

Retailer 10£1,450 GBP

MOH London£1,912 GBP

37 data points across 10 retailers

14 retailers£497 GBP to £1,912 GBP

Retailer 1

£369 GBP

$494 USD

Price last confirmed 14 days ago

Retailer 2

£418 GBP

$560 USD

View

Price last confirmed 32 days ago

Retailer 3

£456 GBP

$611 USD

View

Price last confirmed 33 days ago

Retailer 4

£458 GBP

$613 USD

View

Price last confirmed 27 days ago

Retailer 5

£497 GBP

HK$5,200 HKD

View

Retailer 6

£560 GBP

$750 USD

View

Retailer 7

£565 GBP

View

Price last confirmed 15 days ago

B+

Retailer 8

£711 GBP

$953 USD

View

Retailer 9

£756 GBP

View

B+

Retailer 10

£1,051 GBP

$1,408 USD

View

B+

Retailer 11

£1,071 GBP

$1,435 USD

View

Retailer 12

£1,203 GBP

$1,612 USD

View

Price last confirmed 14 days ago

Retailer 13

£1,450 GBP

SGD 2,625 SGD

View

Most Expensive

MOH London

LG835634480 · Oct 25

£1,912 GBP

View

13 more retailers have this diamond

Prices start from £497 GBPSave up to £1,415 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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3.55ct Heart

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