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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG632488346

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG632488346

Diamond specifications and retailer prices

From $477 AUD
$335 USD
As of October 30, 2026
Save $4,050 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,527 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 LG632488346 or 632488346. Listed at 22 retailers as of October 30, 2026, with prices from $477 to $4,527, a $4,050 spread on the same certified stone. Brilliant Earth lists it at $4,527. 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 angle32.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632488346
Dimensions7.11 × 8.03 × 4.55 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
7.11 mm8.03 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632488346
Side View
Table 63.0%Crown 32.7°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 56.7%

Caratlytics Score

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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: $4,527 AUD|Low: $458 AUD|High: $4,954 AUD|Avg: $1,429 AUD|-8.6%
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
October 31, 2026
Retailer 16$477 AUD
Retailer 6$554 AUD
Retailer 3$591 AUD
Retailer 7$591 AUD
Retailer 10$611 AUD
Retailer 5$794 AUD
Retailer 12$811 AUD
Retailer 11$1,016 AUD
Retailer 2$1,059 AUD
Retailer 8$1,062 AUD
Retailer 14$1,463 AUD
Retailer 15$1,836 AUD
Retailer 4$1,901 AUD
Retailer 13$2,372 AUD
Retailer 9$3,328 AUD
Brilliant Earth$4,527 AUD

37 data points across 16 retailers

22 retailers$477 AUD to $4,527 AUD

A
Cheapest Retailer
-
$477 AUD
$335 USD
A
Retailer 2
-
$532 AUD
$374 USD
View
Final sale: no returns
A
Retailer 3
-
$554 AUD
$389 USD
View
A
Retailer 4
-
$591 AUD
$415 USD
View
A
Retailer 5
-
$591 AUD
$415 USD
View
A
Retailer 6
-
$611 AUD
£338 GBP
View
A
Retailer 7
-
$794 AUD
$558 USD
View
A
Retailer 8
-
$811 AUD
$570 USD
View
A
Retailer 9
-
$1,016 AUD
ZAR 11,529 ZAR
View
A
Retailer 10
-
$1,059 AUD
£586 GBP
View
A
Retailer 11
-
$1,062 AUD
$746 USD
View
A
Retailer 12
-
$1,463 AUD
$1,028 USD
View
A
Retailer 13
-
$1,463 AUD
$1,028 USD
View
B+
Retailer 14
-
$1,836 AUD
$1,290 USD
View
B+
Retailer 15
-
$1,901 AUD
$1,335 USD
View
B+
Retailer 16
-
$1,962 AUD
$1,379 USD
View
B+
Retailer 17
-
$2,234 AUD
$1,569 USD
View
B+
Retailer 18
-
$2,312 AUD
$1,624 USD
View
B+
Retailer 19
-
$2,372 AUD
£1,312 GBP
View
B
Retailer 20
-
$3,328 AUD
View
B
Retailer 21
-
$3,959 AUD
£2,190 GBP
View
Most Expensive
B
Brilliant Earth
13387894A · Oct 30
$4,527 AUD
$3,180 USD
View
21 more retailers have this diamond
Prices start from $477 AUDSave up to $4,050 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
$477 AUD