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Round|Lab Grown|IGI

1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG775630287

Shape and cutting style on the report: Round brilliant

Certificate IGI LG775630287

Diamond specifications and retailer prices

From $198 USD
As of November 3, 2026
Save $593 USD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,152 USD at MOH London · As of October 29, 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 LG775630287 or 775630287. Listed at 13 retailers as of November 3, 2026, with a 299% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775630287
Dimensions7.44 × 7.37 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.44 mm7.37 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775630287
Side View
Table 57.0%Crown 34.2°Girdle: MediumPavilion 41.1°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 3
Current: $1,152 USD|Low: $192 USD|High: $1,173 USD|Avg: $538 USD|-1.7%
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 5, 2026
Retailer 13$198 USD
Retailer 9$229 USD
Retailer 5$245 USD
Retailer 8$245 USD
Retailer 6$422 USD
Retailer 11$426 USD
Retailer 3$436 USD
Retailer 2$443 USD
Retailer 10$578 USD
Retailer 7$730 USD
Retailer 4$788 USD
Retailer 12$791 USD
MOH London$1,152 USD

45 data points across 13 retailers

13 retailers$198 USD to $791 USD

A
Cheapest Retailer
-
$198 USD
A
Retailer 2
-
$229 USD
View
Retailer 3
-
$245 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$245 USD
View
A
Retailer 5
-
$422 USD
View
B+
Retailer 6
-
$426 USD
View
A
Retailer 7
-
$436 USD
View
A
Retailer 8
-
$443 USD
View
B+
Retailer 9
-
$578 USD
View
B+
Retailer 10
-
$730 USD
View
B+
Retailer 11
-
$788 USD
View
B+
Retailer 12
-
$791 USD
View
Most Expensive
MOH London
LG775630287 · Oct 29
$1,152 USD
£907 GBP
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from $198 USDSave up to $593 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
$198 USD