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Princess|Lab Grown|IGI

1.50ct D SI1 Princess Lab Grown Diamond

GD • D/SI1 • IGI LG574340057

Shape and cutting style on the report: Princess cut

Certificate IGI LG574340057

Diamond specifications and retailer prices

From $419 SGD
$328 USD
As of October 30, 2026
Save $1,039 SGD (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,458 SGD 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG574340057 or 574340057. Listed at 7 retailers as of October 29, 2026, with prices from $419 to $1,458, a $1,039 spread on the same certified stone. MOH London lists it at $1,458. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG574340057
Dimensions5.99 × 5.96 × 4.42 mm
L/W Ratio1.01
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
5.99 mm5.96 mm1.50 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG574340057
Side View
Table 67.5%Crown 44°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 74.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,458 SGD|Low: $419 SGD|High: $1,458 SGD|Avg: $858 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4$419 SGD
Retailer 2$566 SGD
Retailer 3$620 SGD
Retailer 5$638 SGD
Retailer 8$880 SGD
Retailer 7$1,065 SGD
Retailer 6$1,315 SGD
MOH London$1,458 SGD

14 data points across 8 retailers

7 retailers$419 SGD to $1,458 SGD

B+
Cheapest Retailer
-
$419 SGD
$328 USD
B+
Retailer 2
-
$566 SGD
£349 GBP
View
B+
Retailer 3
-
$620 SGD
$485 USD
View
B+
Retailer 4
-
$638 SGD
$499 USD
View
B
Retailer 5
-
$1,065 SGD
$833 USD
View
Retailer 6
-
$1,315 SGD
$1,029 USD
View
Price last confirmed 72 days ago
Most Expensive
B
MOH London
LG574340057 · Oct 29
$1,458 SGD
£898 GBP
View
6 more retailers have this diamond
Prices start from $419 SGDSave up to $1,039 SGD

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.

B+
1.50ct Princess
$419 SGD