Round|Lab Grown|IGI

8.18ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG605381441

Shape and cutting style on the report: Round brilliant

Certificate IGI LG605381441

Diamond specifications and retailer prices

From $2,369 CAD

$1,696 USD

As of October 30, 2026

Save $5,048 CAD (68%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $7,418 CAD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 8.18ct lab-grown round diamond

This 8.18ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG605381441 or 605381441. Listed at 14 retailers as of October 29, 2026, with prices from $2,369 to $7,418, a $5,048 spread on the same certified stone. Brilliant Earth lists it at $7,418. 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

8.18

Carat

Color

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.5°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG605381441

Dimensions12.90 × 12.85 × 7.98 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG605381441

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

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

Price History

Last verified: Oct 30

Current: $7,418 CAD|Low: $1,606 CAD|High: $7,655 CAD|Avg: $3,638 CAD|-3.1%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

October 31, 2026

Retailer 3$1,606 CAD

Retailer 8$1,633 CAD

Retailer 10$2,369 CAD

Retailer 2$2,469 CAD

Retailer 9$2,566 CAD

Retailer 6$2,570 CAD

Retailer 5$2,630 CAD

Retailer 7$3,462 CAD

Retailer 4$5,475 CAD

Retailer 11$6,401 CAD

Brilliant Earth$7,418 CAD

37 data points across 11 retailers

14 retailers$2,369 CAD to $7,418 CAD

Retailer 1

$1,384 CAD

$991 USD

Price last confirmed 37 days ago

Retailer 2

$1,506 CAD

$1,078 USD

View

Price last confirmed 37 days ago

Retailer 3

$1,584 CAD

$1,134 USD

View

Price last confirmed 33 days ago

Retailer 4

$1,633 CAD

£920 GBP

View

Price last confirmed 14 days ago

B+

Retailer 5

$2,369 CAD

$1,696 USD

View

B+

Retailer 6

$2,469 CAD

£1,392 GBP

View

B+

Retailer 7

$2,566 CAD

$1,837 USD

View

B+

Retailer 8

$2,570 CAD

$1,840 USD

View

B+

Retailer 9

$2,630 CAD

€1,793 EUR

View

Retailer 10

$3,010 CAD

$2,155 USD

View

Price last confirmed 34 days ago

B+

Retailer 11

$3,462 CAD

$2,478 USD

View

Retailer 12

$5,475 CAD

£3,086 GBP

View

Retailer 13

$6,401 CAD

$4,582 USD

View

Most Expensive

Brilliant Earth

8497740A · Oct 29

$7,418 CAD

$5,310 USD

View

13 more retailers have this diamond

Prices start from $2,369 CADSave up to $5,048 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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