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Princess|Lab Grown|IGI

3.51ct G SI1 Princess Lab Grown Diamond

ID • G/SI1 • IGI LG536201818

Shape and cutting style on the report: Princess cut

Certificate IGI LG536201818

Diamond specifications and retailer prices

From €2,354 EUR
$2,630 USD
As of October 31, 2026
Save €6,413 EUR (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €17,455 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 3.51ct lab-grown princess diamond

This 3.51ct lab-grown princess sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG536201818 or 536201818. Listed at 11 retailers as of October 31, 2026, with a 272% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG536201818
Dimensions8.31 × 8.10 × 5.85 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
8.31 mm8.10 mm3.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG536201818
Side View
Table 72.5%Crown 40.2°Girdle: ThickPavilion 38.6°Culet: NoneDepth 72.2%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: €17,455 EUR|Low: €2,354 EUR|High: €17,688 EUR|Avg: €10,164 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7€2,354 EUR
Retailer 6€8,430 EUR
Retailer 3€8,767 EUR
Retailer 8€9,779 EUR
Retailer 11€9,779 EUR
Retailer 9€10,442 EUR
Retailer 5€10,704 EUR
Retailer 10€10,998 EUR
Retailer 4€11,503 EUR
Retailer 2€11,985 EUR
MOH London€17,455 EUR

41 data points across 11 retailers

11 retailers€2,354 EUR to €8,767 EUR

B+
Cheapest Retailer
-
€2,354 EUR
$2,630 USD
B
Retailer 2
-
€8,430 EUR
$9,418 USD
View
B
Retailer 3
-
€8,767 EUR
$9,795 USD
View
Retailer 4
-
€9,779 EUR
$10,925 USD
View
Price under review
Retailer 5
-
€9,779 EUR
$10,925 USD
View
Price under review
Retailer 6
-
€10,442 EUR
$11,666 USD
View
Price under review
Retailer 7
-
€10,704 EUR
$11,959 USD
View
Price under review
Retailer 8
-
€10,998 EUR
$12,287 USD
View
Price under review
Retailer 9
-
€11,503 EUR
£10,119 GBP
View
Price under review
Retailer 10
-
€11,985 EUR
£10,543 GBP
View
Price under review
Most Expensive
MOH London
LG536201818 · Nov 1
€17,455 EUR
£15,355 GBP
View
Price under review
10 more retailers have this diamond
Prices start from €2,354 EURSave up to €6,413 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+
3.51ct Princess
€2,354 EUR