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Heart|Lab Grown|IGI

1.04ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG591351353

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG591351353

Diamond specifications and retailer prices

From $525 AUD
$368 USD
As of October 30, 2026
Save $1,831 AUD (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,553 AUD at Brilliant Earth · As of October 9, 2026
View at Brilliant Earth

About this 1.04ct lab-grown heart diamond

This 1.04ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG591351353 or 591351353. Listed at 20 retailers as of October 26, 2026, with a 349% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.04
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591351353
Dimensions6.24 × 7.04 × 4.07 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
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
6.24 mm7.04 mm1.04 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591351353
Side View
Table 62.0%Crown 33.5°Girdle: STK-THKPavilion 38.5°Culet: NoneDepth 57.8%

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: $3,553 AUD|Low: $454 AUD|High: $3,553 AUD|Avg: $1,131 AUD
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
November 1, 2026
Retailer 9$454 AUD
Retailer 4$525 AUD
Retailer 7$586 AUD
Retailer 8$586 AUD
Retailer 2$592 AUD
Retailer 17$773 AUD
Retailer 11$778 AUD
Retailer 3$885 AUD
Retailer 14$915 AUD
Retailer 16$987 AUD
Retailer 10$1,027 AUD
Retailer 15$1,396 AUD
Retailer 12$1,685 AUD
Retailer 5$1,911 AUD
Retailer 13$2,070 AUD
Retailer 6$2,356 AUD
Brilliant Earth$3,553 AUD

40 data points across 17 retailers

20 retailers$525 AUD to $2,356 AUD

Retailer 1
-
$454 AUD
$318 USD
Price last confirmed 31 days ago
A
Retailer 2
-
$525 AUD
$368 USD
View
Final sale: no returns
Retailer 3
-
$549 AUD
$385 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$586 AUD
$411 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$586 AUD
$411 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$592 AUD
£326 GBP
View
A
Retailer 7
-
$773 AUD
$542 USD
View
A
Retailer 8
-
$778 AUD
$545 USD
View
B+
Retailer 9
-
$885 AUD
$620 USD
View
B+
Retailer 10
-
$915 AUD
$641 USD
View
B+
Retailer 11
-
$987 AUD
ZAR 11,178 ZAR
View
B+
Retailer 12
-
$1,027 AUD
£567 GBP
View
B+
Retailer 13
-
$1,396 AUD
View
B
Retailer 14
-
$1,685 AUD
$1,181 USD
View
Retailer 15
-
$1,886 AUD
$1,322 USD
View
Price last confirmed 33 days ago
B
Retailer 16
-
$1,911 AUD
$1,339 USD
View
B
Retailer 17
-
$2,070 AUD
$1,451 USD
View
Retailer 18
-
$2,091 AUD
View
Price last confirmed 159 days ago
B
Retailer 19
-
$2,356 AUD
£1,300 GBP
View
Most Expensive
Brilliant Earth
11242224A · Oct 9
$3,553 AUD
$2,490 USD
View
Price last confirmed 24 days ago
19 more retailers have this diamond
Prices start from $525 AUDSave up to $1,831 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
1.04ct Heart
$525 AUD