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Princess|Lab Grown|IGI

1.80ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG451055777

Shape and cutting style on the report: Princess cut

Certificate IGI LG451055777

Diamond specifications and retailer prices

From €904 EUR
$1,010 USD
As of October 31, 2026
Save €3,563 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,467 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.8ct lab-grown princess diamond

This 1.8ct lab-grown princess 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 LG451055777 or 451055777. Listed at 10 retailers as of October 29, 2026, with prices from €904 to €4,467, a €3,563 spread on the same certified stone. MOH London lists it at €4,467. 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

1.80
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.3°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055777
Dimensions6.73 × 6.54 × 4.72 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
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Top View
6.73 mm6.54 mm1.80 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451055777
Side View
Table 70.5%Crown 45.3°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 72.2%

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: €4,467 EUR|Low: €904 EUR|High: €4,497 EUR|Avg: €2,218 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2€904 EUR
Retailer 3€1,192 EUR
Retailer 5€1,535 EUR
Retailer 7€1,910 EUR
Retailer 4€2,188 EUR
Retailer 6€2,578 EUR
MOH London€4,467 EUR

11 data points across 7 retailers

10 retailers€904 EUR to €4,467 EUR

A
Cheapest Retailer
-
€904 EUR
$1,010 USD
B+
Retailer 2
-
€1,192 EUR
$1,332 USD
View
A
Retailer 3
-
€1,297 EUR
$1,449 USD
View
B+
Retailer 4
-
€1,383 EUR
$1,545 USD
View
Retailer 5
-
€1,383 EUR
$1,545 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,535 EUR
$1,715 USD
View
B
Retailer 7
-
€2,188 EUR
$2,444 USD
View
B
Retailer 8
-
€2,578 EUR
$2,880 USD
View
B
Retailer 9
-
€2,592 EUR
$2,896 USD
View
Most Expensive
B
MOH London
LG451055777 · Oct 29
€4,467 EUR
£3,930 GBP
View
9 more retailers have this diamond
Prices start from €904 EURSave up to €3,563 EUR

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
1.80ct Princess
€904 EUR