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Heart|Lab Grown|IGI

1.71ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG830620123

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830620123

Diamond specifications and retailer prices

From $1,403 CAD
£791 GBP
As of October 30, 2026
Save $4,269 CAD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,671 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.71ct lab-grown heart diamond

This 1.71ct 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 very-good cut grade and certified by IGI LG830620123 or 830620123. Listed at 7 retailers as of October 30, 2026, with prices from $1,403 to $5,671, a $4,269 spread on the same certified stone. Brilliant Earth lists it at $5,671. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620123
Dimensions7.42 × 8.32 × 4.78 mm
L/W Ratio1.12
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
Top View
7.42 mm8.32 mm1.71 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620123
Side View
Table 56.0%Crown 37.3°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 57.5%

Caratlytics Score

How it works →
A
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: $5,671 CAD|Low: $1,403 CAD|High: $7,655 CAD|Avg: $3,535 CAD|-25.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3$1,403 CAD
Retailer 4$1,892 CAD
Retailer 7$1,982 CAD
Retailer 2$2,002 CAD
Retailer 6$4,272 CAD
Retailer 5$5,044 CAD
Brilliant Earth$5,671 CAD

2 data points across 7 retailers

7 retailers$1,403 CAD to $5,671 CAD

A
Cheapest Retailer
-
$1,403 CAD
£791 GBP
B+
Retailer 2
-
$1,892 CAD
£1,066 GBP
View
B+
Retailer 3
-
$1,982 CAD
$1,419 USD
View
B+
Retailer 4
-
$2,002 CAD
$1,433 USD
View
B
Retailer 5
-
$4,272 CAD
$3,058 USD
View
B
Retailer 6
-
$5,044 CAD
$3,611 USD
View
Most Expensive
B
Brilliant Earth
22348642A · Oct 30
$5,671 CAD
$4,060 USD
View
6 more retailers have this diamond
Prices start from $1,403 CADSave up to $4,269 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.

A
1.71ct Heart
$1,403 CAD