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Round|Lab Grown|IGI

1.54ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG478113435

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478113435

Diamond specifications and retailer prices

From $850 USD
As of October 31, 2026
Save $3,813 USD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,663 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478113435 or 478113435. Listed at 12 retailers as of October 29, 2026, with prices from $850 to $4,663, a $3,813 spread on the same certified stone. MOH London lists it at $4,663. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478113435
Dimensions7.33 × 7.37 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.33 mm7.37 mm1.54 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478113435
Side View
Table 56.5%Crown 35.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.0%

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: Oct 31
Current: $4,663 USD|Low: $850 USD|High: $4,702 USD|Avg: $2,216 USD|+0.5%
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 1, 2026
Retailer 6$850 USD
Retailer 7$1,400 USD
Retailer 10$1,524 USD
Retailer 12$1,568 USD
Retailer 8$1,624 USD
Retailer 13$1,624 USD
Retailer 3$1,795 USD
Retailer 5$2,218 USD
Retailer 9$2,564 USD
Retailer 2$2,938 USD
Retailer 4$2,948 USD
Retailer 11$3,045 USD
MOH London$4,663 USD

37 data points across 13 retailers

12 retailers$850 USD to $4,663 USD

A
Cheapest Retailer
-
$850 USD
B+
Retailer 2
-
$1,400 USD
View
B+
Retailer 3
-
$1,524 USD
View
B+
Retailer 4
-
$1,568 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,624 USD
View
Retailer 6
-
$1,624 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$1,795 USD
View
B
Retailer 8
-
$2,564 USD
View
B
Retailer 9
-
$2,938 USD
£2,313 GBP
View
B
Retailer 10
-
$2,948 USD
View
B
Retailer 11
-
$3,045 USD
View
Most Expensive
B
MOH London
LG478113435 · Oct 29
$4,663 USD
£3,672 GBP
View
11 more retailers have this diamond
Prices start from $850 USDSave up to $3,813 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
$850 USD