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Princess|Lab Grown|IGI

1.50ct E SI1 Princess Lab Grown Diamond

EX • E/SI1 • IGI LG557240871

Shape and cutting style on the report: Princess cut

Certificate IGI LG557240871

Diamond specifications and retailer prices

From $231 USD
As of October 30, 2026
Save $923 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,154 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct lab-grown princess diamond

This 1.5ct 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 LG557240871 or 557240871. Listed at 13 retailers as of October 29, 2026, with prices from $231 to $1,154, a $923 spread on the same certified stone. MOH London lists it at $1,154. 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

1.50
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG557240871
Dimensions6.33 × 6.32 × 4.45 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.33 mm6.32 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG557240871
Side View
Table 65.5%Crown 39.3°Girdle: MediumPavilion 39°Culet: NoneDepth 70.4%

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: $1,154 USD|Low: $222 USD|High: $1,162 USD|Avg: $562 USD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 8$231 USD
Retailer 3$268 USD
Retailer 9$287 USD
Retailer 12$287 USD
Retailer 2$368 USD
Retailer 10$486 USD
Retailer 5$540 USD
Retailer 4$613 USD
Retailer 11$921 USD
Retailer 7$924 USD
Retailer 6$925 USD
MOH London$1,154 USD

44 data points across 12 retailers

13 retailers$231 USD to $1,154 USD

A
Cheapest Retailer
-
$231 USD
A
Retailer 2
-
$268 USD
View
A
Retailer 3
-
$287 USD
View
A
Retailer 4
-
$287 USD
View
A
Retailer 5
-
$368 USD
£290 GBP
View
B+
Retailer 6
-
$461 USD
View
B+
Retailer 7
-
$486 USD
View
B+
Retailer 8
-
$540 USD
£425 GBP
View
B+
Retailer 9
-
$613 USD
View
B
Retailer 10
-
$921 USD
View
B
Retailer 11
-
$924 USD
View
B
Retailer 12
-
$925 USD
View
Most Expensive
B
MOH London
LG557240871 · Oct 29
$1,154 USD
£909 GBP
View
12 more retailers have this diamond
Prices start from $231 USDSave up to $923 USD

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
1.50ct Princess
$231 USD