Heart|Lab Grown|IGI

1.09ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG831648664

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831648664

Diamond specifications and retailer prices

From $304 CAD

HK$1,700 HKD

As of October 30, 2026

Save $1,037 CAD (77%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $1,341 CAD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG831648664 or 831648664. Listed at 14 retailers as of October 29, 2026, with prices from $304 to $1,341, a $1,037 spread on the same certified stone. Brilliant Earth lists it at $1,341. 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

1.09

Carat

Color

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishVery Good

SymmetryVery Good

FluorescenceNone

Crown angle34.1°

Pavilion angle39.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG831648664

Dimensions7.44 × 6.51 × 4.05 mm

L/W Ratio1.14

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

PolishVery Good

SymmetryVery Good

FluorescenceNone

CertificateIGI LG831648664

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: Oct 30

Current: $1,341 CAD|Low: $239 CAD|High: $1,383 CAD|Avg: $640 CAD|-3.0%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

October 27, 2026

Retailer 9$239 CAD

Retailer 3$304 CAD

Retailer 2$345 CAD

Retailer 4$460 CAD

Retailer 11$475 CAD

Retailer 8$483 CAD

Retailer 5$570 CAD

Retailer 7$684 CAD

Retailer 10$731 CAD

Retailer 6$1,242 CAD

Brilliant Earth$1,341 CAD

38 data points across 11 retailers

14 retailers$304 CAD to $1,341 CAD

Retailer 1

$214 CAD

$153 USD

Price last confirmed 13 days ago

Retailer 2

$249 CAD

$178 USD

View

Price last confirmed 15 days ago

Retailer 3

$265 CAD

$190 USD

View

Price last confirmed 15 days ago

Retailer 4

$304 CAD

HK$1,700 HKD

View

Retailer 5

$345 CAD

£194 GBP

View

B+

Retailer 6

$460 CAD

£259 GBP

View

B+

Retailer 7

$475 CAD

$340 USD

View

B+

Retailer 8

$483 CAD

$346 USD

View

B+

Retailer 9

$570 CAD

£321 GBP

View

Retailer 10

$684 CAD

$490 USD

View

Retailer 11

$731 CAD

SGD 707 SGD

View

Retailer 12

$852 CAD

$610 USD

View

Price last confirmed 14 days ago

Retailer 13

$1,242 CAD

£700 GBP

View

Most Expensive

Brilliant Earth

21274495A · Oct 29

$1,341 CAD

$960 USD

View

13 more retailers have this diamond

Prices start from $304 CADSave up to $1,037 CAD

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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