Radiant|Lab Grown|IGI

3.09ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG710539520

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG710539520

Diamond specifications and retailer prices

From $497 CAD

$355 USD

As of October 30, 2026

Save $6,277 CAD (93%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: $6,774 CAD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG710539520 or 710539520. Listed at 19 retailers as of October 29, 2026, with prices from $497 to $6,774, a $6,277 spread on the same certified stone. Brilliant Earth lists it at $6,774. 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

3.09

Carat

Color

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle43.1°

Pavilion angle36.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG710539520

Dimensions10.16 × 7.19 × 4.99 mm

L/W Ratio1.41

Culet sizePointed

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 LG710539520

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: $6,774 CAD|Low: $463 CAD|High: $6,774 CAD|Avg: $1,659 CAD

Brilliant Earth

Retailer 2

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Retailer 19

October 30, 2026

Retailer 2$497 CAD

Retailer 10$554 CAD

Retailer 5$575 CAD

Retailer 6$616 CAD

Retailer 14$616 CAD

Retailer 4$826 CAD

Retailer 17$826 CAD

Retailer 12$841 CAD

Retailer 7$1,059 CAD

Retailer 18$1,077 CAD

Retailer 13$1,107 CAD

Retailer 3$1,804 CAD

Retailer 16$1,978 CAD

Retailer 11$2,036 CAD

Retailer 9$2,178 CAD

Retailer 8$2,361 CAD

Retailer 15$2,417 CAD

Retailer 19$3,492 CAD

Brilliant Earth$6,774 CAD

33 data points across 19 retailers

19 retailers$497 CAD to $6,774 CAD

Cheapest Retailer

$497 CAD

$355 USD

Retailer 2

$554 CAD

$396 USD

View

Final sale: no returns

Retailer 3

$575 CAD

$411 USD

View

Retailer 4

$616 CAD

$440 USD

View

Retailer 5

$616 CAD

$440 USD

View

B+

Retailer 6

$826 CAD

$590 USD

View

Retailer 7

$826 CAD

$590 USD

View

Retailer 8

$841 CAD

£473 GBP

View

Retailer 9

$1,059 CAD

$757 USD

View

Retailer 10

$1,077 CAD

€733 EUR

View

Retailer 11

$1,107 CAD

£623 GBP

View

Retailer 12

$1,804 CAD

$1,289 USD

View

B+

Retailer 13

$1,978 CAD

$1,413 USD

View

B+

Retailer 14

$2,036 CAD

$1,454 USD

View

B+

Retailer 15

$2,178 CAD

$1,556 USD

View

Retailer 16

$2,361 CAD

$1,687 USD

View

B+

Retailer 17

$2,417 CAD

£1,360 GBP

View

Retailer 18

$3,492 CAD

$2,495 USD

View

Most Expensive

Brilliant Earth

16226177A · Oct 29

$6,774 CAD

$4,840 USD

View

18 more retailers have this diamond

Prices start from $497 CADSave up to $6,277 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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