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Princess|Lab Grown|IGI

1.51ct I SI1 Princess Lab Grown Diamond

ID • I/SI1 • IGI LG447001296

Shape and cutting style on the report: Princess cut

Certificate IGI LG447001296

Diamond specifications and retailer prices

From €775 EUR
As of November 4, 2026
Save €3,556 EUR (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,331 EUR at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown princess diamond

This 1.51ct lab-grown princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001296 or 447001296. Listed at 10 retailers as of November 3, 2026, with prices from €775 to €4,331, a €3,556 spread on the same certified stone. MOH London lists it at €4,331. 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

1.51
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.6°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001296
Dimensions6.42 × 6.15 × 4.22 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
undefined
Top View
6.42 mm6.15 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001296
Side View
Table 73.0%Crown 50.6°Girdle: Slightly ThickPavilion 36.6°Culet: NoneDepth 68.6%

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: Nov 4
Current: €4,331 EUR|Low: €775 EUR|High: €4,383 EUR|Avg: €2,158 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2€775 EUR
Retailer 3€1,162 EUR
Retailer 5€1,501 EUR
Retailer 7€1,857 EUR
Retailer 4€2,132 EUR
Retailer 6€2,512 EUR
MOH London€4,331 EUR

11 data points across 7 retailers

10 retailers€775 EUR to €4,331 EUR

A
Cheapest Retailer
-
€775 EUR
B+
Retailer 2
-
€1,162 EUR
View
B+
Retailer 3
-
€1,264 EUR
View
B
Retailer 4
-
€1,348 EUR
View
Retailer 5
-
€1,348 EUR
View
Price last confirmed 25 days ago
B+
Retailer 6
-
€1,501 EUR
View
B
Retailer 7
-
€2,132 EUR
View
B
Retailer 8
-
€2,512 EUR
View
B
Retailer 9
-
€2,527 EUR
View
Most Expensive
B
MOH London
LG447001296 · Nov 3
€4,331 EUR
£3,828 GBP
View
9 more retailers have this diamond
Prices start from €775 EURSave up to €3,556 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
1.51ct Princess
€775 EUR