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 $176 USD
As of October 30, 2026
Save $526 USD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $702 USD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

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 11 retailers as of October 28, 2026, with prices from $176 to $702, a $526 spread on the same certified stone. NZ Jewellers lists it at $702. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $702 USD|Low: $176 USD|High: $1,260 USD|Avg: $516 USD
NZ Jewellers
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
October 30, 2026
Retailer 8$176 USD
Retailer 14$204 USD
Retailer 9$218 USD
Retailer 12$243 USD
Retailer 2$284 USD
Retailer 3$353 USD
Retailer 13$388 USD
Retailer 7$392 USD
Retailer 11$432 USD
Retailer 10$469 USD
NZ Jewellers$702 USD
Retailer 5$732 USD
Retailer 4$838 USD
Retailer 6$1,260 USD

4 data points across 14 retailers

11 retailers$176 USD to $702 USD

A
Cheapest Retailer
-
$176 USD
A
Retailer 2
-
$204 USD
View
A
Retailer 3
-
$218 USD
View
A
Retailer 4
-
$243 USD
HK$1,900 HKD
View
A
Retailer 5
-
$284 USD
£224 GBP
View
B+
Retailer 6
-
$388 USD
View
B+
Retailer 7
-
$392 USD
£308 GBP
View
B+
Retailer 8
-
$432 USD
View
B+
Retailer 9
-
$469 USD
View
B
Retailer 10
-
$700 USD
View
Most Expensive
B
NZ Jewellers
59594241-59ab-483f-9b02-6915ef970fd9 · Oct 28
$702 USD
View
10 more retailers have this diamond
Prices start from $176 USDSave up to $526 USD

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
$176 USD