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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG811645844

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811645844

Diamond specifications and retailer prices

From $727 AUD
$511 USD
As of October 30, 2026
Save $2,288 AUD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,015 AUD at Brilliance · As of October 30, 2026
View at Brilliance

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 LG811645844 or 811645844. Listed at 10 retailers as of October 30, 2026, with prices from $727 to $3,015, a $2,288 spread on the same certified stone. Brilliance lists it at $3,015. 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
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811645844
Dimensions7.70 × 7.20 × 4.68 mm
L/W Ratio1.07
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
7.70 mm7.20 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG811645844
Side View
Table 58.0%Crown 37.5°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 60.8%

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: $3,015 AUD|Low: $510 AUD|High: $3,300 AUD|Avg: $1,796 AUD|-8.6%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$727 AUD
Retailer 7$1,082 AUD
Retailer 3$1,267 AUD
Retailer 2$1,323 AUD
Retailer 5$1,385 AUD
Retailer 8$1,525 AUD
Retailer 6$2,167 AUD
Retailer 9$2,635 AUD
Retailer 4$2,976 AUD
Brilliance$3,015 AUD

41 data points across 10 retailers

10 retailers$727 AUD to $3,015 AUD

A
Cheapest Retailer
-
$727 AUD
$511 USD
Final sale: no returns
A
Retailer 2
-
$1,082 AUD
$760 USD
View
A
Retailer 3
-
$1,267 AUD
$890 USD
View
A
Retailer 4
-
$1,323 AUD
£732 GBP
View
A
Retailer 5
-
$1,385 AUD
ZAR 15,715 ZAR
View
A
Retailer 6
-
$1,525 AUD
$1,071 USD
View
B
Retailer 7
-
$2,167 AUD
$1,522 USD
View
B+
Retailer 8
-
$2,635 AUD
$1,851 USD
View
B
Retailer 9
-
$2,976 AUD
£1,646 GBP
View
Most Expensive
B
Brilliance
D44758911 · Oct 30
$3,015 AUD
$2,118 USD
View
9 more retailers have this diamond
Prices start from $727 AUDSave up to $2,288 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
$727 AUD