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1.54ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG816613791

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613791

Diamond specifications and retailer prices

From $370 NZD
As of November 5, 2026
Save $1,765 NZD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,135 NZD 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816613791 or 816613791. Listed at 14 retailers as of November 5, 2026, with prices from $370 to $2,135, a $1,765 spread on the same certified stone. MOH London lists it at $2,135. 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 angle34.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613791
Dimensions7.45 × 7.39 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm7.39 mm1.54 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613791
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 41°Culet: NoneDepth 61.7%

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: $2,135 NZD|Low: $370 NZD|High: $2,167 NZD|Avg: $1,155 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$370 NZD
Retailer 8$458 NZD
Retailer 2$772 NZD
Retailer 9$792 NZD
Retailer 3$832 NZD
Retailer 6$1,299 NZD
Retailer 4$1,477 NZD
Retailer 5$1,858 NZD
MOH London$2,135 NZD

43 data points across 9 retailers

14 retailers$370 NZD to $2,135 NZD

A
Cheapest Retailer
-
$370 NZD
A
Retailer 2
-
$428 NZD
View
Retailer 3
-
$458 NZD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$458 NZD
View
A
Retailer 5
-
$772 NZD
View
B+
Retailer 6
-
$792 NZD
View
A
Retailer 7
-
$797 NZD
View
A
Retailer 8
-
$832 NZD
View
B+
Retailer 9
-
$1,299 NZD
View
B+
Retailer 10
-
$1,472 NZD
View
B
Retailer 11
-
$1,477 NZD
View
B
Retailer 12
-
$1,568 NZD
View
B
Retailer 13
-
$1,858 NZD
View
Most Expensive
B
MOH London
LG816613791 · Nov 5
$2,135 NZD
£932 GBP
View
13 more retailers have this diamond
Prices start from $370 NZDSave up to $1,765 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
$370 NZD