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Heart|Lab Grown|IGI

1.53ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG629453271

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG629453271

Diamond specifications and retailer prices

From $611 AUD
As of November 5, 2026
Save $3,388 AUD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,064 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.53ct lab-grown heart diamond

This 1.53ct 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 LG629453271 or 629453271. Listed at 22 retailers as of November 4, 2026, with a 554% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle52.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629453271
Dimensions6.82 × 7.92 × 4.73 mm
L/W Ratio1.16
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
6.82 mm7.92 mm1.53 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629453271
Side View
Table 62.0%Crown 39.2°Girdle: MED-STKPavilion 52.1°Culet: NoneDepth 59.7%

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: Nov 5
Current: $4,064 AUD|Low: $611 AUD|High: $4,628 AUD|Avg: $1,816 AUD
Queensmith
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
Retailer 20
November 5, 2026
Retailer 13$611 AUD
Retailer 19$619 AUD
Retailer 14$679 AUD
Retailer 7$684 AUD
Retailer 2$713 AUD
Retailer 5$893 AUD
Retailer 11$917 AUD
Retailer 6$1,141 AUD
Retailer 18$1,179 AUD
Retailer 15$1,227 AUD
Retailer 9$1,518 AUD
Retailer 17$1,658 AUD
Retailer 16$1,717 AUD
Retailer 3$2,198 AUD
Retailer 10$2,253 AUD
Retailer 12$2,553 AUD
Retailer 8$2,561 AUD
Retailer 20$2,671 AUD
Retailer 4$4,000 AUD
Queensmith$4,064 AUD

26 data points across 20 retailers

22 retailers$611 AUD to $4,000 AUD

A
Cheapest Retailer
-
$611 AUD
Final sale: no returns
A
Retailer 2
-
$619 AUD
View
A
Retailer 3
-
$679 AUD
View
Retailer 4
-
$684 AUD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$713 AUD
View
A
Retailer 6
-
$893 AUD
View
A
Retailer 7
-
$917 AUD
View
A
Retailer 8
-
$1,141 AUD
View
A
Retailer 9
-
$1,179 AUD
View
A
Retailer 10
-
$1,227 AUD
View
A
Retailer 11
-
$1,518 AUD
View
B+
Retailer 12
-
$1,658 AUD
View
B+
Retailer 13
-
$1,717 AUD
View
B+
Retailer 14
-
$1,918 AUD
View
B+
Retailer 15
-
$2,146 AUD
View
B+
Retailer 16
-
$2,198 AUD
View
B+
Retailer 17
-
$2,253 AUD
View
B+
Retailer 18
-
$2,553 AUD
View
Retailer 19
-
$2,561 AUD
View
Price last confirmed 9 days ago
B+
Retailer 20
-
$2,671 AUD
View
B
Retailer 21
-
$4,000 AUD
View
Most Expensive
Queensmith
LG629453271 · Oct 27
$4,064 AUD
£2,240 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $611 AUDSave up to $3,388 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
1.53ct Heart
$611 AUD