Round|Lab Grown|IGI

1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG840636180

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840636180

Diamond specifications and retailer prices

From $186 USD
As of November 5, 2026
Save $880 USD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,066 USD 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG840636180 or 840636180. Listed at 9 retailers as of November 2, 2026, with prices from $186 to $1,066, a $880 spread on the same certified stone. MOH London lists it at $1,066. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840636180
Dimensions7.38 × 7.44 × 4.53 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
7.38 mm7.44 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840636180
Side View
Table 57.0%Crown 33.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.2%

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: $1,066 USD|Low: $176 USD|High: $1,078 USD|Avg: $574 USD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$186 USD
Retailer 5$216 USD
Retailer 7$389 USD
Retailer 2$395 USD
Retailer 8$563 USD
Retailer 3$742 USD
Retailer 6$784 USD
Retailer 9$924 USD
MOH London$1,066 USD

32 data points across 9 retailers

9 retailers$186 USD to $1,066 USD

A
Cheapest Retailer
-
$186 USD
A
Retailer 2
-
$216 USD
View
Retailer 3
-
$389 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$395 USD
View
B+
Retailer 5
-
$563 USD
View
B+
Retailer 6
-
$742 USD
View
B
Retailer 7
-
$784 USD
View
Retailer 8
-
$924 USD
View
Price last confirmed 24 days ago
Most Expensive
B
MOH London
LG840636180 · Nov 2
$1,066 USD
£839 GBP
View
8 more retailers have this diamond
Prices start from $186 USDSave up to $880 USD

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
$186 USD