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Heart|Lab Grown|IGI

1.58ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG742505336

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG742505336

Diamond specifications and retailer prices

From $447 AUD
$314 USD
As of October 30, 2026
Save $3,653 AUD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,100 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.58ct lab-grown heart diamond

This 1.58ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG742505336 or 742505336. Listed at 13 retailers as of October 30, 2026, with prices from $447 to $4,100, a $3,653 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

1.58
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742505336
Dimensions7.19 × 7.88 × 4.87 mm
L/W Ratio1.10
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
7.19 mm7.88 mm1.58 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742505336
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A+
Exceptional
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: $413 AUD|High: $4,840 AUD|Avg: $1,683 AUD|-15.3%
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
October 30, 2026
Retailer 4$447 AUD
Retailer 7$518 AUD
Retailer 5$578 AUD
Retailer 11$719 AUD
Retailer 10$772 AUD
Retailer 2$924 AUD
Retailer 9$925 AUD
Retailer 13$1,392 AUD
Retailer 12$1,784 AUD
Retailer 8$1,999 AUD
Retailer 6$2,235 AUD
Retailer 3$2,409 AUD
Brilliant Earth$4,100 AUD

36 data points across 13 retailers

13 retailers$447 AUD to $4,100 AUD

A+
Cheapest Retailer
-
$447 AUD
$314 USD
A
Retailer 2
-
$518 AUD
$364 USD
View
A
Retailer 3
-
$578 AUD
$406 USD
View
Final sale: no returns
A
Retailer 4
-
$719 AUD
$505 USD
View
A
Retailer 5
-
$772 AUD
$542 USD
View
A
Retailer 6
-
$924 AUD
€618 EUR
View
A
Retailer 7
-
$925 AUD
$650 USD
View
A
Retailer 8
-
$1,392 AUD
$978 USD
View
B+
Retailer 9
-
$1,784 AUD
$1,253 USD
View
B+
Retailer 10
-
$1,999 AUD
$1,404 USD
View
B+
Retailer 11
-
$2,235 AUD
£1,236 GBP
View
B+
Retailer 12
-
$2,409 AUD
$1,692 USD
View
Most Expensive
B
Brilliant Earth
16536818A · Oct 30
$4,100 AUD
$2,880 USD
View
12 more retailers have this diamond
Prices start from $447 AUDSave up to $3,653 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+
1.58ct Heart
$447 AUD