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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 $298 CAD
$213 USD
As of October 30, 2026
Save $1,430 CAD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,727 CAD 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 $298 to $1,727, a $1,430 spread on the same certified stone. Reve Diamonds lists it at $1,727. 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
Color
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

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: $684 CAD|Low: $197 CAD|High: $1,499 CAD|Avg: $629 CAD|+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$197 CAD
Retailer 9$332 CAD
Retailer 7$346 CAD
Retailer 5$370 CAD
Retailer 6$636 CAD
Retailer 2$643 CAD
Retailer 1$684 CAD
Retailer 8$830 CAD
Retailer 4$1,193 CAD
Retailer 3$1,488 CAD

42 data points across 10 retailers

14 retailers$298 CAD to $1,727 CAD

A
Cheapest Retailer
-
$298 CAD
$213 USD
A
Retailer 2
-
$332 CAD
$238 USD
View
Final sale: no returns
A
Retailer 3
-
$346 CAD
$248 USD
View
A
Retailer 4
-
$370 CAD
$265 USD
View
A
Retailer 5
-
$370 CAD
$265 USD
View
B+
Retailer 6
-
$636 CAD
$455 USD
View
B+
Retailer 7
-
$643 CAD
$460 USD
View
B+
Retailer 8
-
$684 CAD
£386 GBP
View
B+
Retailer 9
-
$830 CAD
$594 USD
View
B
Retailer 10
-
$1,189 CAD
$851 USD
View
B
Retailer 11
-
$1,193 CAD
$854 USD
View
B
Retailer 12
-
$1,262 CAD
$904 USD
View
B
Retailer 13
-
$1,488 CAD
£839 GBP
View
Most Expensive
B
Reve Diamonds
062840DEF · Oct 30
$1,727 CAD
$1,236 USD
View
13 more retailers have this diamond
Prices start from $298 CADSave up to $1,430 CAD

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
$298 CAD