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Round|Lab Grown|IGI

1.54ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG485136600

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485136600

Diamond specifications and retailer prices

From $860 USD
As of October 31, 2026
Save $3,604 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,464 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG485136600 or 485136600. Listed at 11 retailers as of October 29, 2026, with prices from $860 to $4,464, a $3,604 spread on the same certified stone. MOH London lists it at $4,464. 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485136600
Dimensions7.34 × 7.29 × 4.62 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
7.34 mm7.29 mm1.54 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485136600
Side View
Table 55.5%Crown 36°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.1%

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: Oct 31
Current: $4,464 USD|Low: $860 USD|High: $4,500 USD|Avg: $2,063 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$860 USD
Retailer 3$1,191 USD
Retailer 6$1,334 USD
Retailer 4$1,382 USD
Retailer 7$1,555 USD
Retailer 9$1,959 USD
Retailer 5$2,193 USD
Retailer 8$2,647 USD
MOH London$4,464 USD

15 data points across 9 retailers

11 retailers$860 USD to $4,464 USD

A
Cheapest Retailer
-
$860 USD
B+
Retailer 2
-
$1,191 USD
View
B+
Retailer 3
-
$1,296 USD
View
B+
Retailer 4
-
$1,334 USD
View
Final sale: no returns
Retailer 5
-
$1,382 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$1,382 USD
View
B+
Retailer 7
-
$1,555 USD
View
B
Retailer 8
-
$2,193 USD
View
B
Retailer 9
-
$2,590 USD
View
B
Retailer 10
-
$2,647 USD
View
Most Expensive
B
MOH London
LG485136600 · Oct 29
$4,464 USD
£3,515 GBP
View
10 more retailers have this diamond
Prices start from $860 USDSave up to $3,604 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
$860 USD