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Round|Lab Grown|IGI

1.54ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG779639055

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779639055

Diamond specifications and retailer prices

From $291 AUD
As of November 5, 2026
Save $1,397 AUD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,688 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG779639055 or 779639055. Listed at 16 retailers as of November 5, 2026, with prices from $291 to $1,688, a $1,397 spread on the same certified stone. Brilliant Earth lists it at $1,688. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779639055
Dimensions7.37 × 7.31 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.37 mm7.31 mm1.54 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779639055
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.5%

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 5
Current: $659 AUD|Low: $279 AUD|High: $1,707 AUD|Avg: $845 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$291 AUD
Retailer 12$361 AUD
Retailer 10$488 AUD
Retailer 4$640 AUD
Retailer 5$653 AUD
Retailer 1$659 AUD
Retailer 11$792 AUD
Retailer 2$846 AUD
Retailer 6$1,062 AUD
Retailer 8$1,164 AUD
Retailer 3$1,176 AUD
Retailer 7$1,687 AUD

45 data points across 12 retailers

16 retailers$291 AUD to $1,688 AUD

A
Cheapest Retailer
-
$291 AUD
A
Retailer 2
-
$338 AUD
View
Retailer 3
-
$361 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$361 AUD
View
B+
Retailer 5
-
$488 AUD
View
A
Retailer 6
-
$640 AUD
View
A
Retailer 7
-
$653 AUD
View
A
Retailer 8
-
$659 AUD
View
B+
Retailer 9
-
$792 AUD
View
B+
Retailer 10
-
$846 AUD
View
B+
Retailer 11
-
$1,062 AUD
View
B+
Retailer 12
-
$1,161 AUD
View
B+
Retailer 13
-
$1,164 AUD
View
B+
Retailer 14
-
$1,176 AUD
View
B
Retailer 15
-
$1,687 AUD
View
Most Expensive
B
Brilliant Earth
20762835A · Nov 5
$1,688 AUD
$1,160 USD
View
15 more retailers have this diamond
Prices start from $291 AUDSave up to $1,397 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 Round
$291 AUD