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Heart|Lab Grown|IGI

1.39ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG816615885

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816615885

Diamond specifications and retailer prices

From $519 AUD
As of November 4, 2026
Save $3,615 AUD (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,134 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.39ct lab-grown heart diamond

This 1.39ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615885 or 816615885. Listed at 18 retailers as of November 4, 2026, with prices from $519 to $4,134, a $3,615 spread on the same certified stone. Brilliant Earth lists it at $4,134. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.39
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615885
Dimensions7.14 × 7.77 × 4.27 mm
L/W Ratio1.09
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
7.14 mm7.77 mm1.39 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615885
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 55.0%

Caratlytics Score

How it works →
A+
Exceptional
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 4
Current: $4,134 AUD|Low: $519 AUD|High: $4,177 AUD|Avg: $1,388 AUD|-1.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 5, 2026
Retailer 8$519 AUD
Retailer 4$579 AUD
Retailer 13$602 AUD
Retailer 3$643 AUD
Retailer 10$681 AUD
Retailer 14$855 AUD
Retailer 15$1,015 AUD
Retailer 12$1,029 AUD
Retailer 2$1,148 AUD
Retailer 9$1,173 AUD
Retailer 16$1,455 AUD
Retailer 17$1,622 AUD
Retailer 6$1,930 AUD
Retailer 11$2,067 AUD
Retailer 18$2,124 AUD
Retailer 5$2,238 AUD
Retailer 7$2,512 AUD
Brilliant Earth$4,134 AUD

29 data points across 18 retailers

18 retailers$519 AUD to $4,134 AUD

A+
Cheapest Retailer
-
$519 AUD
A
Retailer 2
-
$579 AUD
View
Final sale: no returns
A
Retailer 3
-
$602 AUD
View
A
Retailer 4
-
$643 AUD
View
Retailer 5
-
$681 AUD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$855 AUD
View
A
Retailer 7
-
$1,015 AUD
View
A
Retailer 8
-
$1,029 AUD
View
A
Retailer 9
-
$1,148 AUD
View
A
Retailer 10
-
$1,173 AUD
View
B+
Retailer 11
-
$1,455 AUD
View
B+
Retailer 12
-
$1,622 AUD
View
B+
Retailer 13
-
$1,930 AUD
View
B+
Retailer 14
-
$2,067 AUD
View
B+
Retailer 15
-
$2,124 AUD
View
B+
Retailer 16
-
$2,238 AUD
View
B+
Retailer 17
-
$2,512 AUD
View
Most Expensive
B
Brilliant Earth
21421553A · Nov 4
$4,134 AUD
$2,900 USD
View
17 more retailers have this diamond
Prices start from $519 AUDSave up to $3,615 AUD

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+
1.39ct Heart
$519 AUD