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Princess|Lab Grown|IGI

1.51ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG559282838

Shape and cutting style on the report: Princess cut

Certificate IGI LG559282838

Diamond specifications and retailer prices

From $426 NZD
$240 USD
As of October 30, 2026
Save $1,695 NZD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,120 NZD at MOH London · As of November 1, 2026
View at MOH London

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559282838 or 559282838. Listed at 12 retailers as of October 30, 2026, with prices from $426 to $2,120, a $1,695 spread on the same certified stone. MOH London lists it at $2,120. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.8°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559282838
Dimensions6.17 × 6.16 × 4.27 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
6.17 mm6.16 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559282838
Side View
Table 70.5%Crown 48.8°Girdle: MED-STKPavilion 36°Culet: NoneDepth 69.3%

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: Oct 30
Current: $2,120 NZD|Low: $410 NZD|High: $2,197 NZD|Avg: $1,088 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$426 NZD
Retailer 8$529 NZD
Retailer 11$529 NZD
Retailer 2$589 NZD
Retailer 9$891 NZD
Retailer 4$993 NZD
Retailer 3$1,107 NZD
Retailer 10$1,700 NZD
Retailer 5$1,705 NZD
Retailer 7$1,845 NZD
MOH London$2,120 NZD

44 data points across 11 retailers

12 retailers$426 NZD to $2,120 NZD

A
Cheapest Retailer
-
$426 NZD
$240 USD
A
Retailer 2
-
$529 NZD
$298 USD
View
Retailer 3
-
$529 NZD
$298 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$589 NZD
£261 GBP
View
B+
Retailer 5
-
$891 NZD
$502 USD
View
B+
Retailer 6
-
$900 NZD
$507 USD
View
B+
Retailer 7
-
$993 NZD
£441 GBP
View
B+
Retailer 8
-
$1,107 NZD
$624 USD
View
B
Retailer 9
-
$1,700 NZD
$958 USD
View
B
Retailer 10
-
$1,705 NZD
$961 USD
View
Retailer 11
-
$1,845 NZD
$1,040 USD
View
Most Expensive
B
MOH London
LG559282838 · Nov 1
$2,120 NZD
£941 GBP
View
11 more retailers have this diamond
Prices start from $426 NZDSave up to $1,695 NZD

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
$426 NZD