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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG835608021

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835608021

Diamond specifications and retailer prices

From $444 AUD
$312 USD
As of October 30, 2026
Save $3,798 AUD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,242 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 LG835608021 or 835608021. Listed at 21 retailers as of October 30, 2026, with prices from $444 to $4,242, a $3,798 spread on the same certified stone. Brilliant Earth lists it at $4,242. 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 angle38.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835608021
Dimensions6.66 × 7.89 × 4.72 mm
L/W Ratio1.18
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
6.66 mm7.89 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835608021
Side View
Table 57.0%Crown 38.3°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 59.8%

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: $4,242 AUD|Low: $430 AUD|High: $4,242 AUD|Avg: $1,453 AUD|+0.3%
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
Retailer 18
Retailer 19
October 31, 2026
Retailer 17$444 AUD
Retailer 10$547 AUD
Retailer 6$550 AUD
Retailer 4$568 AUD
Retailer 19$609 AUD
Retailer 12$826 AUD
Retailer 18$894 AUD
Retailer 8$940 AUD
Retailer 2$980 AUD
Retailer 16$1,025 AUD
Retailer 7$1,274 AUD
Retailer 14$1,382 AUD
Retailer 15$1,453 AUD
Retailer 5$1,834 AUD
Retailer 11$2,103 AUD
Retailer 9$2,195 AUD
Retailer 3$2,206 AUD
Retailer 13$3,328 AUD
Brilliant Earth$4,242 AUD

26 data points across 19 retailers

21 retailers$444 AUD to $4,242 AUD

A
Cheapest Retailer
-
$444 AUD
$312 USD
Retailer 2
-
$537 AUD
$377 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
$547 AUD
$384 USD
View
A
Retailer 4
-
$550 AUD
$386 USD
View
A
Retailer 5
-
$568 AUD
£314 GBP
View
A
Retailer 6
-
$609 AUD
$428 USD
View
Final sale: no returns
A
Retailer 7
-
$826 AUD
$580 USD
View
A
Retailer 8
-
$894 AUD
$628 USD
View
A
Retailer 9
-
$940 AUD
ZAR 10,664 ZAR
View
A
Retailer 10
-
$980 AUD
£542 GBP
View
A
Retailer 11
-
$1,025 AUD
$720 USD
View
A
Retailer 12
-
$1,274 AUD
View
A
Retailer 13
-
$1,382 AUD
$971 USD
View
A
Retailer 14
-
$1,453 AUD
$1,021 USD
View
Retailer 15
-
$1,801 AUD
$1,265 USD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
$1,834 AUD
$1,288 USD
View
B+
Retailer 17
-
$2,103 AUD
$1,477 USD
View
B+
Retailer 18
-
$2,195 AUD
£1,214 GBP
View
B+
Retailer 19
-
$2,206 AUD
$1,550 USD
View
B
Retailer 20
-
$3,328 AUD
View
Most Expensive
B
Brilliant Earth
21696528A · Oct 30
$4,242 AUD
$2,980 USD
View
20 more retailers have this diamond
Prices start from $444 AUDSave up to $3,798 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
$444 AUD