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Round|Lab Grown|IGI

1.54ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG492112371

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492112371

Diamond specifications and retailer prices

From $1,100 USD
As of October 29, 2026
Save $3,621 USD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,721 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492112371 or 492112371. Listed at 10 retailers as of October 29, 2026, with prices from $1,100 to $4,721, a $3,621 spread on the same certified stone. MOH London lists it at $4,721. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492112371
Dimensions7.56 × 7.53 × 4.45 mm
L/W Ratio1.00
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
7.56 mm7.53 mm1.54 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492112371
Side View
Table 58.5%Crown 33°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 58.9%

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 29
Current: $4,721 USD|Low: $1,100 USD|High: $4,757 USD|Avg: $2,367 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2$1,100 USD
Retailer 4$1,412 USD
Retailer 7$1,717 USD
Retailer 6$2,024 USD
Retailer 3$2,315 USD
Retailer 5$2,724 USD
Retailer 8$3,271 USD
MOH London$4,721 USD

12 data points across 8 retailers

10 retailers$1,100 USD to $4,721 USD

A
Cheapest Retailer
-
$1,100 USD
A
Retailer 2
-
$1,260 USD
View
B+
Retailer 3
-
$1,371 USD
View
B+
Retailer 4
-
$1,412 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,461 USD
View
B+
Retailer 6
-
$1,461 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$2,315 USD
View
B
Retailer 8
-
$2,724 USD
View
B
Retailer 9
-
$2,739 USD
View
Most Expensive
B
MOH London
LG492112371 · Oct 29
$4,721 USD
£3,717 GBP
View
9 more retailers have this diamond
Prices start from $1,100 USDSave up to $3,621 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
$1,100 USD