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Round|Lab Grown|IGI

1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG621455497

Shape and cutting style on the report: Round brilliant

Certificate IGI LG621455497

Diamond specifications and retailer prices

From $307 AUD
As of November 3, 2026
Save $1,217 AUD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,524 AUD at MOH London · As of November 5, 2026
View at MOH London

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG621455497 or 621455497. Listed at 14 retailers as of November 3, 2026, with prices from $307 to $1,524, a $1,217 spread on the same certified stone. MOH London lists it at $1,524. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621455497
Dimensions7.48 × 7.42 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.48 mm7.42 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621455497
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.7%

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 3
Current: $1,524 AUD|Low: $266 AUD|High: $1,557 AUD|Avg: $763 AUD|-2.1%
MOH London
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
November 5, 2026
Retailer 12$307 AUD
Retailer 10$357 AUD
Retailer 9$381 AUD
Retailer 15$381 AUD
Retailer 8$591 AUD
Retailer 4$631 AUD
Retailer 5$653 AUD
Retailer 14$660 AUD
Retailer 2$697 AUD
Retailer 3$853 AUD
Retailer 13$1,226 AUD
Retailer 11$1,230 AUD
Retailer 7$1,271 AUD
Retailer 6$1,341 AUD
MOH London$1,524 AUD

38 data points across 15 retailers

14 retailers$307 AUD to $1,524 AUD

A
Cheapest Retailer
-
$307 AUD
A
Retailer 2
-
$357 AUD
View
A
Retailer 3
-
$381 AUD
View
Retailer 4
-
$381 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$591 AUD
View
A
Retailer 6
-
$631 AUD
View
B+
Retailer 7
-
$653 AUD
View
B+
Retailer 8
-
$697 AUD
View
B+
Retailer 9
-
$853 AUD
View
B
Retailer 10
-
$1,226 AUD
View
B
Retailer 11
-
$1,230 AUD
View
B
Retailer 12
-
$1,271 AUD
View
B
Retailer 13
-
$1,341 AUD
View
Most Expensive
B
MOH London
LG621455497 · Nov 5
$1,524 AUD
£840 GBP
View
13 more retailers have this diamond
Prices start from $307 AUDSave up to $1,217 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
$307 AUD