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Princess|Lab Grown|IGI

1.81ct J SI2 Princess Lab Grown Diamond

ID • J/SI2 • IGI LG450028044

Shape and cutting style on the report: Princess cut

Certificate IGI LG450028044

Diamond specifications and retailer prices

From $1,230 USD
As of October 30, 2026
Save $3,379 USD (73%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,609 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.81ct lab-grown princess diamond

This 1.81ct lab-grown princess sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG450028044 or 450028044. Listed at 9 retailers as of October 29, 2026, with prices from $1,230 to $4,609, a $3,379 spread on the same certified stone. MOH London lists it at $4,609. 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

1.81
Carat
J
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450028044
Dimensions6.83 × 6.72 × 4.55 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
6.83 mm6.72 mm1.81 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450028044
Side View
Table 67.5%Crown 43.8°Girdle: MED-STKPavilion 37.2°Culet: NoneDepth 67.7%

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 30
Current: $4,609 USD|Low: $1,181 USD|High: $4,646 USD|Avg: $2,171 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 2$1,230 USD
Retailer 3$1,290 USD
Retailer 7$1,338 USD
Retailer 4$1,427 USD
Retailer 9$2,024 USD
Retailer 5$2,262 USD
Retailer 6$2,674 USD
Retailer 8$2,733 USD
MOH London$4,609 USD

14 data points across 9 retailers

9 retailers$1,230 USD to $4,609 USD

A
Cheapest Retailer
-
$1,230 USD
A
Retailer 2
-
$1,290 USD
View
A
Retailer 3
-
$1,338 USD
View
A
Retailer 4
-
$1,427 USD
View
Retailer 5
-
$1,427 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$2,262 USD
View
B
Retailer 7
-
$2,674 USD
View
B
Retailer 8
-
$2,733 USD
View
Most Expensive
B
MOH London
LG450028044 · Oct 29
$4,609 USD
£3,629 GBP
View
8 more retailers have this diamond
Prices start from $1,230 USDSave up to $3,379 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
1.81ct Princess
$1,230 USD