Princess|Lab Grown|IGI

1.50ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG447098409

Shape and cutting style on the report: Princess cut

Certificate IGI LG447098409

Diamond specifications and retailer prices

From $911 USD
As of November 6, 2026
Save $2,060 USD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,603 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447098409 or 447098409. Listed at 10 retailers as of November 6, 2026, with a 226% 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

1.50
Carat
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447098409
Dimensions6.29 × 6.14 × 4.47 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
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Top View
6.29 mm6.14 mm1.50 ctK / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447098409
Side View
Table 66.0%Crown 43.1°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 72.8%

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: Nov 6
Current: $3,603 USD|Low: $875 USD|High: $3,632 USD|Avg: $1,778 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$911 USD
Retailer 6$1,057 USD
Retailer 8$1,057 USD
Retailer 3$1,230 USD
Retailer 2$1,469 USD
Retailer 9$1,564 USD
Retailer 7$1,695 USD
Retailer 4$2,351 USD
MOH London$3,603 USD

40 data points across 9 retailers

10 retailers$911 USD to $2,971 USD

A
Cheapest Retailer
-
$911 USD
A
Retailer 2
-
$991 USD
View
A
Retailer 3
-
$1,057 USD
View
Retailer 4
-
$1,057 USD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
$1,230 USD
View
B+
Retailer 6
-
$1,469 USD
View
B+
Retailer 7
-
$1,695 USD
View
B
Retailer 8
-
$2,351 USD
View
B
Retailer 9
-
$2,971 USD
View
Most Expensive
MOH London
LG447098409 · Oct 29
$3,603 USD
£2,837 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $911 USDSave up to $2,060 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
$911 USD