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Princess|Lab Grown|IGI

1.50ct D SI1 Princess Lab Grown Diamond

EX • D/SI1 • IGI LG519261650

Shape and cutting style on the report: Princess cut

Certificate IGI LG519261650

Diamond specifications and retailer prices

From $448 USD
As of October 30, 2026
Save $595 USD (57%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,043 USD at MOH London · As of October 26, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG519261650 or 519261650. Listed at 6 retailers as of October 26, 2026, with prices from $448 to $1,043, a $595 spread on the same certified stone. MOH London lists it at $1,043. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle49.4°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519261650
Dimensions6.16 × 6.14 × 4.54 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
6.16 mm6.14 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG519261650
Side View
Table 66.0%Crown 49.4°Girdle: MediumPavilion 38.2°Culet: NoneDepth 73.9%

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: $1,043 USD|Low: $448 USD|High: $1,286 USD|Avg: $696 USD|-11.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 5$448 USD
Retailer 2$480 USD
Retailer 3$490 USD
Retailer 6$590 USD
Retailer 4$1,020 USD
MOH London$1,043 USD

30 data points across 6 retailers

6 retailers$448 USD to $1,043 USD

B+
Cheapest Retailer
-
$448 USD
A
Retailer 2
-
$480 USD
£378 GBP
View
A
Retailer 3
-
$490 USD
View
B+
Retailer 4
-
$590 USD
View
Retailer 5
-
$1,020 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
LG519261650 · Oct 26
$1,043 USD
£821 GBP
View
5 more retailers have this diamond
Prices start from $448 USDSave up to $595 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
$448 USD