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 €158 EUR
$176 USD
As of October 30, 2026
Save €506 EUR (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €663 EUR at Friendly Diamonds · As of October 31, 2026
View at Friendly Diamonds

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 12 retailers as of October 30, 2026, with prices from €158 to €663, a €506 spread on the same certified stone. Friendly Diamonds lists it at €663. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €663 EUR|Low: €158 EUR|High: €1,128 EUR|Avg: €457 EUR
Friendly Diamonds
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
October 31, 2026
Retailer 9€158 EUR
Retailer 3€183 EUR
Retailer 10€195 EUR
Retailer 14€218 EUR
Retailer 8€254 EUR
Retailer 4€316 EUR
Retailer 15€347 EUR
Retailer 2€348 EUR
Retailer 12€387 EUR
Retailer 11€420 EUR
Retailer 13€628 EUR
Retailer 6€655 EUR
Friendly Diamonds€663 EUR
Retailer 5€750 EUR
Retailer 7€1,128 EUR

5 data points across 15 retailers

12 retailers€158 EUR to €663 EUR

A
Cheapest Retailer
-
€158 EUR
$176 USD
A
Retailer 2
-
€183 EUR
$204 USD
View
A
Retailer 3
-
€195 EUR
$218 USD
View
A
Retailer 4
-
€218 EUR
HK$1,900 HKD
View
A
Retailer 5
-
€254 EUR
£224 GBP
View
B+
Retailer 6
-
€347 EUR
$388 USD
View
A
Retailer 7
-
€348 EUR
£306 GBP
View
B+
Retailer 8
-
€387 EUR
$432 USD
View
B+
Retailer 9
-
€420 EUR
$469 USD
View
B
Retailer 10
-
€627 EUR
$700 USD
View
B
Retailer 11
-
€628 EUR
$702 USD
View
Most Expensive
B
Friendly Diamonds
6556775 · Oct 31
€663 EUR
$741 USD
View
11 more retailers have this diamond
Prices start from €158 EURSave up to €506 EUR

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
€158 EUR