Heart|Lab Grown|IGI

1.91ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG831604009

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831604009

Diamond specifications and retailer prices

From $1,525 CAD

$1,092 USD

As of November 1, 2026

Save $5,012 CAD (77%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: $6,537 CAD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 1.91ct lab-grown heart diamond

This 1.91ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831604009 or 831604009. Listed at 21 retailers as of October 31, 2026, with prices from $1,525 to $6,537, a $5,012 spread on the same certified stone. Brilliant Earth lists it at $6,537. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34°

Pavilion angle40°

OriginLab Grown

Grading LabIGI

CertificateIGI LG831604009

Dimensions7.60 × 8.63 × 5.02 mm

L/W Ratio1.14

Girdle conditionFaceted

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG831604009

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 1

Current: $6,537 CAD|Low: $1,525 CAD|High: $8,619 CAD|Avg: $4,275 CAD|-24.0%

Brilliant Earth

Retailer 2

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Retailer 20

November 1, 2026

Retailer 5$1,525 CAD

Retailer 16$1,580 CAD

Retailer 15$1,786 CAD

Retailer 12$1,810 CAD

Retailer 8$1,824 CAD

Retailer 19$1,890 CAD

Retailer 20$2,158 CAD

Retailer 13$2,291 CAD

Retailer 18$2,437 CAD

Retailer 4$2,477 CAD

Retailer 17$2,961 CAD

Retailer 11$3,591 CAD

Retailer 10$3,861 CAD

Retailer 3$4,699 CAD

Retailer 14$5,122 CAD

Retailer 6$5,297 CAD

Retailer 2$5,359 CAD

Retailer 9$5,504 CAD

Retailer 7$5,697 CAD

Brilliant Earth$6,537 CAD

30 data points across 20 retailers

21 retailers$1,525 CAD to $6,537 CAD

Cheapest Retailer

$1,525 CAD

$1,092 USD

Final sale: no returns

Retailer 2

$1,580 CAD

$1,131 USD

View

Retailer 3

$1,786 CAD

£1,007 GBP

View

Retailer 4

$1,810 CAD

$1,296 USD

View

Retailer 5

$1,824 CAD

HK$10,200 HKD

View

Retailer 6

$1,890 CAD

$1,353 USD

View

Retailer 7

$2,101 CAD

$1,504 USD

View

Price last confirmed 20 days ago

B+

Retailer 8

$2,158 CAD

$1,545 USD

View

B+

Retailer 9

$2,291 CAD

$1,640 USD

View

B+

Retailer 10

$2,437 CAD

£1,374 GBP

View

B+

Retailer 11

$2,477 CAD

$1,773 USD

View

B+

Retailer 12

$2,961 CAD

$2,120 USD

View

Retailer 13

$3,591 CAD

$2,571 USD

View

B+

Retailer 14

$3,861 CAD

ZAR 44,652 ZAR

View

Retailer 15

$4,699 CAD

$3,364 USD

View

Retailer 16

$5,122 CAD

$3,667 USD

View

Retailer 17

$5,297 CAD

SGD 5,124 SGD

View

Retailer 18

$5,359 CAD

£3,021 GBP

View

Retailer 19

$5,504 CAD

$3,940 USD

View

Retailer 20

$5,697 CAD

$4,078 USD

View

Most Expensive

Brilliant Earth

21605244A · Oct 31

$6,537 CAD

$4,680 USD

View

20 more retailers have this diamond

Prices start from $1,525 CADSave up to $5,012 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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