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Princess|Lab Grown|IGI

1.51ct I SI1 Princess Lab Grown Diamond

ID • I/SI1 • IGI LG447001296

Shape and cutting style on the report: Princess cut

Certificate IGI LG447001296

Diamond specifications and retailer prices

From $1,243 AUD
As of November 4, 2026
Save $5,702 AUD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,945 AUD at MOH London · As of November 3, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001296 or 447001296. Listed at 10 retailers as of November 3, 2026, with prices from $1,243 to $6,945, a $5,702 spread on the same certified stone. MOH London lists it at $6,945. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.6°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001296
Dimensions6.42 × 6.15 × 4.22 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
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Top View
6.42 mm6.15 mm1.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001296
Side View
Table 73.0%Crown 50.6°Girdle: Slightly ThickPavilion 36.6°Culet: NoneDepth 68.6%

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: Nov 4
Current: $6,945 AUD|Low: $1,243 AUD|High: $7,028 AUD|Avg: $3,459 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2$1,243 AUD
Retailer 3$1,863 AUD
Retailer 5$2,407 AUD
Retailer 7$2,977 AUD
Retailer 4$3,418 AUD
Retailer 6$4,028 AUD
MOH London$6,945 AUD

11 data points across 7 retailers

10 retailers$1,243 AUD to $6,945 AUD

A
Cheapest Retailer
-
$1,243 AUD
B+
Retailer 2
-
$1,863 AUD
View
B+
Retailer 3
-
$2,027 AUD
View
B
Retailer 4
-
$2,161 AUD
View
Retailer 5
-
$2,161 AUD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$2,407 AUD
View
B
Retailer 7
-
$3,418 AUD
View
B
Retailer 8
-
$4,028 AUD
View
B
Retailer 9
-
$4,051 AUD
View
Most Expensive
B
MOH London
LG447001296 · Nov 3
$6,945 AUD
£3,828 GBP
View
9 more retailers have this diamond
Prices start from $1,243 AUDSave up to $5,702 AUD

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
$1,243 AUD