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Princess|Lab Grown|IGI

1.51ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG674551404

Shape and cutting style on the report: Princess cut

Certificate IGI LG674551404

Diamond specifications and retailer prices

From $908 NZD
$512 USD
As of October 30, 2026
Save $1,349 NZD (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,258 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 LG674551404 or 674551404. Listed at 9 retailers as of October 30, 2026, with prices from $908 to $2,258, a $1,349 spread on the same certified stone. MOH London lists it at $2,258. 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 angle36.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674551404
Dimensions6.34 × 6.17 × 4.47 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.34 mm6.17 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674551404
Side View
Table 66.0%Crown 36.7°Girdle: ThinPavilion 39.5°Culet: NoneDepth 72.4%

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: $2,258 NZD|Low: $898 NZD|High: $2,342 NZD|Avg: $1,417 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8$908 NZD
Retailer 4$941 NZD
Retailer 6$942 NZD
Retailer 7$1,029 NZD
Retailer 2$1,075 NZD
Retailer 5$1,474 NZD
Retailer 9$1,902 NZD
Retailer 3$2,076 NZD
MOH London$2,258 NZD

42 data points across 9 retailers

9 retailers$908 NZD to $2,258 NZD

A
Cheapest Retailer
-
$908 NZD
$512 USD
A
Retailer 2
-
$941 NZD
€505 EUR
View
B+
Retailer 3
-
$942 NZD
$531 USD
View
B+
Retailer 4
-
$1,029 NZD
$580 USD
View
B+
Retailer 5
-
$1,075 NZD
£477 GBP
View
B
Retailer 6
-
$1,474 NZD
$831 USD
View
B
Retailer 7
-
$1,902 NZD
$1,072 USD
View
B
Retailer 8
-
$2,076 NZD
$1,170 USD
View
Most Expensive
B
MOH London
LG674551404 · Nov 1
$2,258 NZD
£1,002 GBP
View
8 more retailers have this diamond
Prices start from $908 NZDSave up to $1,349 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
$908 NZD