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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 $361 NZD
As of November 1, 2026
Save $1,731 NZD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,092 NZD 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 $361 to $2,092, a $1,731 spread on the same certified stone. MOH London lists it at $2,092. 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: $2,092 NZD|Low: $350 NZD|High: $2,688 NZD|Avg: $994 NZD|-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$361 NZD
Retailer 12$404 NZD
Retailer 5$442 NZD
Retailer 4$447 NZD
Retailer 2$758 NZD
Retailer 3$777 NZD
Retailer 8$817 NZD
Retailer 7$821 NZD
Retailer 13$913 NZD
Retailer 6$1,200 NZD
Retailer 10$1,389 NZD
Retailer 9$2,038 NZD
MOH London$2,092 NZD

34 data points across 13 retailers

13 retailers$361 NZD to $2,092 NZD

A
Cheapest Retailer
-
$361 NZD
Retailer 2
-
$442 NZD
View
Price last confirmed 53 days ago
Retailer 3
-
$447 NZD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$758 NZD
View
B+
Retailer 5
-
$777 NZD
View
A
Retailer 6
-
$794 NZD
View
A
Retailer 7
-
$817 NZD
View
A
Retailer 8
-
$821 NZD
View
A
Retailer 9
-
$913 NZD
View
B+
Retailer 10
-
$1,200 NZD
View
Retailer 11
-
$1,389 NZD
View
Price last confirmed 17 days ago
B
Retailer 12
-
$2,038 NZD
View
Most Expensive
B
MOH London
LG787620025 · Nov 2
$2,092 NZD
£913 GBP
View
12 more retailers have this diamond
Prices start from $361 NZDSave up to $1,731 NZD

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
$361 NZD