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Princess|Lab Grown|IGI

1.51ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG631444203

Shape and cutting style on the report: Princess cut

Certificate IGI LG631444203

Diamond specifications and retailer prices

From €191 EUR
$213 USD
As of October 30, 2026
Save €916 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,107 EUR at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG631444203 or 631444203. Listed at 14 retailers as of October 30, 2026, with prices from €191 to €1,107, a €916 spread on the same certified stone. Reve Diamonds lists it at €1,107. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631444203
Dimensions6.37 × 6.23 × 4.55 mm
L/W Ratio1.02
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
6.37 mm6.23 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG631444203
Side View
Table 71.0%Crown 42.4°Girdle: THN-MEDPavilion 39.7°Culet: NoneDepth 73.0%

Caratlytics Score

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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: €438 EUR|Low: €126 EUR|High: €961 EUR|Avg: €403 EUR|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 10€126 EUR
Retailer 9€213 EUR
Retailer 7€222 EUR
Retailer 5€237 EUR
Retailer 6€407 EUR
Retailer 2€412 EUR
Retailer 1€438 EUR
Retailer 8€532 EUR
Retailer 4€764 EUR
Retailer 3€954 EUR

42 data points across 10 retailers

14 retailers€191 EUR to €1,107 EUR

A
Cheapest Retailer
-
€191 EUR
$213 USD
A
Retailer 2
-
€213 EUR
$238 USD
View
Final sale: no returns
A
Retailer 3
-
€222 EUR
$248 USD
View
A
Retailer 4
-
€237 EUR
$265 USD
View
A
Retailer 5
-
€237 EUR
$265 USD
View
B+
Retailer 6
-
€407 EUR
$455 USD
View
B+
Retailer 7
-
€412 EUR
$460 USD
View
B+
Retailer 8
-
€438 EUR
£386 GBP
View
B+
Retailer 9
-
€532 EUR
$594 USD
View
B
Retailer 10
-
€762 EUR
$851 USD
View
B
Retailer 11
-
€764 EUR
$854 USD
View
B
Retailer 12
-
€809 EUR
$904 USD
View
B
Retailer 13
-
€954 EUR
£839 GBP
View
Most Expensive
B
Reve Diamonds
062840DEF · Oct 30
€1,107 EUR
$1,236 USD
View
13 more retailers have this diamond
Prices start from €191 EURSave up to €916 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
€191 EUR