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 $200 USD
As of November 1, 2026
Save $960 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,160 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 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 $200 to $1,160, a $960 spread on the same certified stone. MOH London lists it at $1,160. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,160 USD|Low: $194 USD|High: $1,490 USD|Avg: $551 USD|-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$200 USD
Retailer 12$224 USD
Retailer 5$245 USD
Retailer 4$248 USD
Retailer 2$420 USD
Retailer 3$431 USD
Retailer 8$453 USD
Retailer 7$455 USD
Retailer 13$506 USD
Retailer 6$665 USD
Retailer 10$770 USD
Retailer 9$1,130 USD
MOH London$1,160 USD

35 data points across 13 retailers

13 retailers$200 USD to $1,160 USD

A
Cheapest Retailer
-
$200 USD
Retailer 2
-
$245 USD
View
Price last confirmed 52 days ago
Retailer 3
-
$248 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$420 USD
View
B+
Retailer 5
-
$431 USD
View
A
Retailer 6
-
$440 USD
View
A
Retailer 7
-
$453 USD
View
A
Retailer 8
-
$455 USD
View
A
Retailer 9
-
$506 USD
View
B+
Retailer 10
-
$665 USD
View
Retailer 11
-
$770 USD
View
Price last confirmed 16 days ago
B
Retailer 12
-
$1,130 USD
View
Most Expensive
B
MOH London
LG787620025 · Nov 2
$1,160 USD
£913 GBP
View
12 more retailers have this diamond
Prices start from $200 USDSave up to $960 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
$200 USD