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Princess|Lab Grown|IGI

1.09ct E SI1 Princess Lab Grown Diamond

EX • E/SI1 • IGI LG846630808

Shape and cutting style on the report: Princess cut

Certificate IGI LG846630808

Diamond specifications and retailer prices

From €144 EUR
$161 USD
As of October 31, 2026
Save €402 EUR (74%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €546 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.09ct lab-grown princess diamond

This 1.09ct lab-grown princess sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG846630808 or 846630808. Listed at 3 retailers as of October 29, 2026, with prices from €144 to €546, a €402 spread on the same certified stone. Brilliant Earth lists it at €546. 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

1.09
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846630808
Dimensions5.62 × 5.55 × 3.95 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.62 mm5.55 mm1.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846630808
Side View
Table 70.0%Crown 41.5°Girdle: MediumPavilion 37.9°Culet: NoneDepth 71.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €546 EUR|Low: €144 EUR|High: €546 EUR|Avg: €355 EUR
Brilliant Earth
Retailer 2
Retailer 3
October 31, 2026
Retailer 2€144 EUR
Retailer 3€285 EUR
Brilliant Earth€546 EUR

15 data points across 3 retailers

3 retailers€144 EUR to €546 EUR

A
Cheapest Retailer
-
€144 EUR
$161 USD
Final sale: no returns
A
Retailer 2
-
€285 EUR
£251 GBP
View
Most Expensive
B
Brilliant Earth
22151087A · Oct 29
€546 EUR
$610 USD
View
2 more retailers have this diamond
Prices start from €144 EURSave up to €402 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
1.09ct Princess
€144 EUR