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Heart|Lab Grown|IGI

1.54ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG851609353

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG851609353

Diamond specifications and retailer prices

From $527 AUD
As of November 4, 2026
Save $3,501 AUD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,028 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct 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 very-good cut grade and certified by IGI LG851609353 or 851609353. Listed at 19 retailers as of November 2, 2026, with prices from $527 to $4,028, a $3,501 spread on the same certified stone. Brilliant Earth lists it at $4,028. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.54
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851609353
Dimensions7.19 × 7.98 × 4.53 mm
L/W Ratio1.11
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
7.19 mm7.98 mm1.54 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851609353
Side View
Table 58.0%Crown 37.4°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 56.8%

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: Nov 4
Current: $4,028 AUD|Low: $527 AUD|High: $4,657 AUD|Avg: $1,382 AUD|-13.5%
Brilliant Earth
Retailer 2
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Retailer 4
Retailer 5
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
Retailer 19
November 5, 2026
Retailer 7$527 AUD
Retailer 8$590 AUD
Retailer 17$611 AUD
Retailer 9$653 AUD
Retailer 2$686 AUD
Retailer 11$713 AUD
Retailer 3$864 AUD
Retailer 5$1,017 AUD
Retailer 19$1,031 AUD
Retailer 15$1,044 AUD
Retailer 16$1,126 AUD
Retailer 12$1,167 AUD
Retailer 14$1,523 AUD
Retailer 4$1,916 AUD
Retailer 10$2,077 AUD
Retailer 18$2,100 AUD
Retailer 6$2,267 AUD
Retailer 13$2,547 AUD
Brilliant Earth$4,028 AUD

9 data points across 19 retailers

19 retailers$527 AUD to $4,028 AUD

A
Cheapest Retailer
-
$527 AUD
A
Retailer 2
-
$590 AUD
View
Final sale: no returns
A
Retailer 3
-
$611 AUD
View
A
Retailer 4
-
$653 AUD
View
A
Retailer 5
-
$686 AUD
View
A
Retailer 6
-
$713 AUD
View
A
Retailer 7
-
$864 AUD
View
A
Retailer 8
-
$1,017 AUD
View
A
Retailer 9
-
$1,031 AUD
View
A
Retailer 10
-
$1,044 AUD
View
A
Retailer 11
-
$1,126 AUD
View
A
Retailer 12
-
$1,167 AUD
View
B+
Retailer 13
-
$1,523 AUD
View
B+
Retailer 14
-
$1,916 AUD
View
B+
Retailer 15
-
$2,077 AUD
View
B+
Retailer 16
-
$2,100 AUD
View
B+
Retailer 17
-
$2,267 AUD
View
B+
Retailer 18
-
$2,547 AUD
View
Most Expensive
B
Brilliant Earth
22347510A · Nov 2
$4,028 AUD
$2,820 USD
View
18 more retailers have this diamond
Prices start from $527 AUDSave up to $3,501 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
1.54ct Heart
$527 AUD