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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG799613631

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799613631

Diamond specifications and retailer prices

From $729 AUD
$512 USD
As of October 30, 2026
Save $3,371 AUD (82%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,100 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799613631 or 799613631. Listed at 7 retailers as of October 30, 2026, with prices from $729 to $4,100, a $3,371 spread on the same certified stone. Brilliant Earth lists it at $4,100. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799613631
Dimensions7.90 × 7.08 × 4.68 mm
L/W Ratio1.12
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
7.90 mm7.08 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799613631
Side View
Table 62.0%Crown 39.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
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: $4,100 AUD|Low: $698 AUD|High: $4,228 AUD|Avg: $1,678 AUD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6$729 AUD
Retailer 5$894 AUD
Retailer 9$921 AUD
Retailer 10$972 AUD
Retailer 11$1,041 AUD
Retailer 7$1,375 AUD
Retailer 8$1,697 AUD
Retailer 4$1,879 AUD
Retailer 2$2,112 AUD
Retailer 3$2,370 AUD
Brilliant Earth$4,100 AUD

26 data points across 11 retailers

7 retailers$729 AUD to $4,100 AUD

A
Cheapest Retailer
-
$729 AUD
$512 USD
A
Retailer 2
-
$894 AUD
$628 USD
View
A
Retailer 3
-
$1,375 AUD
$966 USD
View
B+
Retailer 4
-
$1,697 AUD
$1,192 USD
View
B+
Retailer 5
-
$1,879 AUD
$1,320 USD
View
B+
Retailer 6
-
$2,112 AUD
£1,168 GBP
View
Most Expensive
B
Brilliant Earth
19934876A · Oct 30
$4,100 AUD
$2,880 USD
View
6 more retailers have this diamond
Prices start from $729 AUDSave up to $3,371 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
1.51ct Heart
$729 AUD