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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG735517685

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG735517685

Diamond specifications and retailer prices

From $527 AUD
$370 USD
As of October 30, 2026
Save $2,037 AUD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,564 AUD at MOH London · As of October 29, 2026
View at MOH London

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 LG735517685 or 735517685. Listed at 21 retailers as of October 29, 2026, with prices from $527 to $2,564, a $2,037 spread on the same certified stone. MOH London lists it at $2,564. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735517685
Dimensions7.37 × 7.76 × 4.46 mm
L/W Ratio1.05
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
7.37 mm7.76 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735517685
Side View
Table 60.0%Crown 40.8°Girdle: MED-THKPavilion 36.7°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: $2,564 AUD|Low: $505 AUD|High: $2,582 AUD|Avg: $1,223 AUD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 12$527 AUD
Retailer 5$611 AUD
Retailer 13$653 AUD
Retailer 6$674 AUD
Retailer 10$868 AUD
Retailer 4$876 AUD
Retailer 7$1,055 AUD
Retailer 9$1,122 AUD
Retailer 2$1,169 AUD
Retailer 8$1,515 AUD
Retailer 11$1,915 AUD
Retailer 3$2,275 AUD
MOH London$2,564 AUD

35 data points across 13 retailers

21 retailers$527 AUD to $2,564 AUD

A
Cheapest Retailer
-
$527 AUD
$370 USD
A
Retailer 2
-
$588 AUD
$413 USD
View
Final sale: no returns
A
Retailer 3
-
$611 AUD
$429 USD
View
A
Retailer 4
-
$653 AUD
$459 USD
View
A
Retailer 5
-
$653 AUD
$459 USD
View
A
Retailer 6
-
$674 AUD
£373 GBP
View
A
Retailer 7
-
$868 AUD
$610 USD
View
A
Retailer 8
-
$876 AUD
$615 USD
View
A
Retailer 9
-
$1,014 AUD
$712 USD
View
A
Retailer 10
-
$1,055 AUD
€706 EUR
View
A
Retailer 11
-
$1,122 AUD
ZAR 12,730 ZAR
View
A
Retailer 12
-
$1,169 AUD
£647 GBP
View
A
Retailer 13
-
$1,482 AUD
$1,041 USD
View
A
Retailer 14
-
$1,515 AUD
View
B+
Retailer 15
-
$1,915 AUD
$1,345 USD
View
B+
Retailer 16
-
$2,096 AUD
$1,472 USD
View
B+
Retailer 17
-
$2,098 AUD
$1,474 USD
View
B+
Retailer 18
-
$2,155 AUD
$1,514 USD
View
B+
Retailer 19
-
$2,275 AUD
$1,598 USD
View
B
Retailer 20
-
$2,466 AUD
$1,732 USD
View
Most Expensive
B+
MOH London
LG735517685 · Oct 29
$2,564 AUD
£1,418 GBP
View
20 more retailers have this diamond
Prices start from $527 AUDSave up to $2,037 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
$527 AUD