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Round|Lab Grown|IGI

1.54ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG787620025

Shape and cutting style on the report: Round brilliant

Certificate IGI LG787620025

Diamond specifications and retailer prices

From $291 AUD
As of November 1, 2026
Save $1,396 AUD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,688 AUD at MOH London · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG787620025 or 787620025. Listed at 13 retailers as of November 1, 2026, with prices from $291 to $1,688, a $1,396 spread on the same certified stone. MOH London 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787620025
Dimensions7.42 × 7.37 × 4.57 mm
L/W Ratio1.01
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
7.42 mm7.37 mm1.54 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787620025
Side View
Table 56.0%Crown 35.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.8%

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 1
Current: $1,688 AUD|Low: $282 AUD|High: $2,169 AUD|Avg: $803 AUD|-1.2%
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
November 6, 2026
Retailer 11$291 AUD
Retailer 12$326 AUD
Retailer 5$357 AUD
Retailer 4$361 AUD
Retailer 2$611 AUD
Retailer 3$627 AUD
Retailer 8$659 AUD
Retailer 7$662 AUD
Retailer 13$736 AUD
Retailer 6$968 AUD
Retailer 10$1,121 AUD
Retailer 9$1,645 AUD
MOH London$1,688 AUD

35 data points across 13 retailers

13 retailers$291 AUD to $1,688 AUD

A
Cheapest Retailer
-
$291 AUD
Retailer 2
-
$357 AUD
View
Price last confirmed 52 days ago
Retailer 3
-
$361 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$611 AUD
View
B+
Retailer 5
-
$627 AUD
View
A
Retailer 6
-
$640 AUD
View
A
Retailer 7
-
$659 AUD
View
A
Retailer 8
-
$662 AUD
View
A
Retailer 9
-
$736 AUD
View
B+
Retailer 10
-
$968 AUD
View
Retailer 11
-
$1,121 AUD
View
Price last confirmed 16 days ago
B
Retailer 12
-
$1,645 AUD
View
Most Expensive
B
MOH London
LG787620025 · Nov 2
$1,688 AUD
£913 GBP
View
12 more retailers have this diamond
Prices start from $291 AUDSave up to $1,396 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