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Princess|Lab Grown|IGI

1.51ct G SI2 Princess Lab Grown Diamond

ID • G/SI2 • IGI LG512220552

Shape and cutting style on the report: Princess cut

Certificate IGI LG512220552

Diamond specifications and retailer prices

From €873 EUR
As of November 4, 2026
Save €1,654 EUR (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,527 EUR at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512220552 or 512220552. Listed at 10 retailers as of November 4, 2026, with prices from €873 to €2,527, a €1,654 spread on the same certified stone. NZ Jewellers lists it at €2,527. 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
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220552
Dimensions6.46 × 6.27 × 4.24 mm
L/W Ratio1.03
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
6.46 mm6.27 mm1.51 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220552
Side View
Table 69.5%Crown 42.9°Girdle: MediumPavilion 37.5°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €2,527 EUR|Low: €873 EUR|High: €4,389 EUR|Avg: €1,977 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4€873 EUR
Retailer 5€1,162 EUR
Retailer 8€1,264 EUR
Retailer 6€1,348 EUR
Retailer 2€1,870 EUR
Retailer 7€2,132 EUR
NZ Jewellers€2,527 EUR
Retailer 3€4,318 EUR

46 data points across 8 retailers

10 retailers€873 EUR to €2,527 EUR

B+
Cheapest Retailer
-
€873 EUR
B
Retailer 2
-
€1,162 EUR
View
B
Retailer 3
-
€1,264 EUR
View
Retailer 4
-
€1,348 EUR
View
Price last confirmed 25 days ago
B
Retailer 5
-
€1,348 EUR
View
B
Retailer 6
-
€1,870 EUR
View
B
Retailer 7
-
€2,132 EUR
View
B
Retailer 8
-
€2,512 EUR
View
Most Expensive
B
NZ Jewellers
b72a46bb-8494-4d8e-9646-6011191bf4b4 · Nov 6
€2,527 EUR
$2,836 USD
View
8 more retailers have this diamond
Prices start from €873 EURSave up to €1,654 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.

B+
1.51ct Princess
€873 EUR