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Round|Lab Grown|IGI

1.54ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG442068671

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442068671

Diamond specifications and retailer prices

From $860 USD
As of October 31, 2026
Save $3,580 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,440 USD at MOH London · As of November 1, 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 LG442068671 or 442068671. Listed at 11 retailers as of October 31, 2026, with prices from $860 to $4,440, a $3,580 spread on the same certified stone. MOH London lists it at $4,440. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442068671
Dimensions7.39 × 7.36 × 4.58 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.39 mm7.36 mm1.54 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442068671
Side View
Table 55.5%Crown 36.2°Girdle: MediumPavilion 40.3°Culet: NoneDepth 62.1%

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: $4,440 USD|Low: $860 USD|High: $4,493 USD|Avg: $1,849 USD
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 2$860 USD
Retailer 6$1,191 USD
Retailer 9$1,296 USD
Retailer 11$1,334 USD
Retailer 7$1,382 USD
Retailer 12$1,382 USD
Retailer 5$1,517 USD
Retailer 13$1,555 USD
Retailer 4$1,959 USD
Retailer 8$2,193 USD
Retailer 10$2,590 USD
Retailer 3$2,647 USD
MOH London$4,440 USD

14 data points across 13 retailers

11 retailers$860 USD to $4,440 USD

A
Cheapest Retailer
-
$860 USD
A
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
LG442068671 · Nov 1
$4,440 USD
£3,496 GBP
View
10 more retailers have this diamond
Prices start from $860 USDSave up to $3,580 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