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Princess|Lab Grown|IGI

1.27ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG660405397

Shape and cutting style on the report: Princess cut

Certificate IGI LG660405397

Diamond specifications and retailer prices

From $251 AUD
As of November 6, 2026
Save $1,204 AUD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,455 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.27ct lab-grown princess diamond

This 1.27ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG660405397 or 660405397. Listed at 13 retailers as of November 5, 2026, with prices from $251 to $1,455, a $1,204 spread on the same certified stone. MOH London lists it at $1,455. 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

1.27
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660405397
Dimensions5.82 × 5.79 × 4.23 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.82 mm5.79 mm1.27 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660405397
Side View
Table 69.0%Crown 43.9°Girdle: STK-THKPavilion 39°Culet: NoneDepth 73.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,455 AUD|Low: $251 AUD|High: $1,800 AUD|Avg: $744 AUD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 11$251 AUD
Retailer 4$291 AUD
Retailer 12$311 AUD
Retailer 16$347 AUD
Retailer 9$401 AUD
Retailer 5$503 AUD
Retailer 2$553 AUD
Retailer 3$554 AUD
Retailer 14$617 AUD
Retailer 13$670 AUD
Retailer 15$1,003 AUD
Retailer 7$1,046 AUD
Retailer 10$1,059 AUD
Retailer 6$1,196 AUD
MOH London$1,455 AUD
Retailer 8$1,800 AUD

11 data points across 16 retailers

13 retailers$251 AUD to $1,455 AUD

A
Cheapest Retailer
-
$251 AUD
A
Retailer 2
-
$291 AUD
View
A
Retailer 3
-
$311 AUD
View
A
Retailer 4
-
$347 AUD
View
A
Retailer 5
-
$401 AUD
View
A
Retailer 6
-
$553 AUD
View
B+
Retailer 7
-
$554 AUD
View
B+
Retailer 8
-
$617 AUD
View
B+
Retailer 9
-
$670 AUD
View
Retailer 10
-
$1,000 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$1,003 AUD
View
B
Retailer 12
-
$1,059 AUD
View
Most Expensive
B
MOH London
LG660405397 · Nov 5
$1,455 AUD
£802 GBP
View
12 more retailers have this diamond
Prices start from $251 AUDSave up to $1,204 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
1.27ct Princess
$251 AUD