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Princess|Lab Grown|IGI

1.51ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG674551404

Shape and cutting style on the report: Princess cut

Certificate IGI LG674551404

Diamond specifications and retailer prices

From €458 EUR
$512 USD
As of October 30, 2026
Save €681 EUR (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,139 EUR at MOH London · As of November 1, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG674551404 or 674551404. Listed at 9 retailers as of October 30, 2026, with prices from €458 to €1,139, a €681 spread on the same certified stone. MOH London lists it at €1,139. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674551404
Dimensions6.34 × 6.17 × 4.47 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.34 mm6.17 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674551404
Side View
Table 66.0%Crown 36.7°Girdle: ThinPavilion 39.5°Culet: NoneDepth 72.4%

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: €1,139 EUR|Low: €453 EUR|High: €1,182 EUR|Avg: €714 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8€458 EUR
Retailer 4€475 EUR
Retailer 6€475 EUR
Retailer 7€519 EUR
Retailer 2€542 EUR
Retailer 5€744 EUR
Retailer 9€959 EUR
Retailer 3€1,047 EUR
MOH London€1,139 EUR

43 data points across 9 retailers

9 retailers€458 EUR to €1,139 EUR

A
Cheapest Retailer
-
€458 EUR
$512 USD
A
Retailer 2
-
€475 EUR
View
B+
Retailer 3
-
€475 EUR
$531 USD
View
B+
Retailer 4
-
€519 EUR
$580 USD
View
B+
Retailer 5
-
€542 EUR
£477 GBP
View
B
Retailer 6
-
€744 EUR
$831 USD
View
B
Retailer 7
-
€959 EUR
$1,072 USD
View
B
Retailer 8
-
€1,047 EUR
$1,170 USD
View
Most Expensive
B
MOH London
LG674551404 · Nov 1
€1,139 EUR
£1,002 GBP
View
8 more retailers have this diamond
Prices start from €458 EURSave up to €681 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
€458 EUR