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Heart|Lab Grown|IGI

1.54ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG605370264

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG605370264

Diamond specifications and retailer prices

From $671 AUD
As of November 4, 2026
Save $2,447 AUD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,400 AUD at Brilliant Earth · As of October 8, 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 LG605370264 or 605370264. Listed at 18 retailers as of November 4, 2026, with a 364% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle38.8°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605370264
Dimensions8.25 × 7.17 × 4.53 mm
L/W Ratio1.15
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
8.25 mm7.17 mm1.54 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605370264
Side View
Table 70.0%Crown 38.8°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 54.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $6,400 AUD|Low: $646 AUD|High: $6,400 AUD|Avg: $1,880 AUD
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
November 5, 2026
Retailer 13$671 AUD
Retailer 6$751 AUD
Retailer 5$753 AUD
Retailer 14$833 AUD
Retailer 10$1,036 AUD
Retailer 12$1,117 AUD
Retailer 8$1,369 AUD
Retailer 9$1,437 AUD
Retailer 11$1,874 AUD
Retailer 2$1,947 AUD
Retailer 4$2,678 AUD
Retailer 7$3,053 AUD
Retailer 3$3,118 AUD
Brilliant Earth$6,400 AUD

46 data points across 14 retailers

18 retailers$671 AUD to $3,118 AUD

A
Cheapest Retailer
-
$671 AUD
A
Retailer 2
-
$751 AUD
View
Final sale: no returns
A
Retailer 3
-
$753 AUD
View
A
Retailer 4
-
$833 AUD
View
Retailer 5
-
$833 AUD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$1,036 AUD
View
A
Retailer 7
-
$1,117 AUD
View
A
Retailer 8
-
$1,369 AUD
View
A
Retailer 9
-
$1,437 AUD
View
B+
Retailer 10
-
$1,578 AUD
View
B+
Retailer 11
-
$1,874 AUD
View
B+
Retailer 12
-
$1,947 AUD
View
B
Retailer 13
-
$2,678 AUD
View
B
Retailer 14
-
$2,721 AUD
View
B
Retailer 15
-
$2,937 AUD
View
B
Retailer 16
-
$3,053 AUD
View
B
Retailer 17
-
$3,118 AUD
View
Most Expensive
Brilliant Earth
21385981A · Oct 8
$6,400 AUD
$4,480 USD
View
Price last confirmed 28 days ago
17 more retailers have this diamond
Prices start from $671 AUDSave up to $2,447 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
$671 AUD