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 $162 USD
As of October 30, 2026
Save $448 USD (73%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $610 USD 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 $162 to $610, a $448 spread on the same certified stone. Brilliant Earth lists it at $610. 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 30
Current: $610 USD|Low: $162 USD|High: $610 USD|Avg: $399 USD
Brilliant Earth
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$162 USD
Retailer 2$318 USD
Brilliant Earth$610 USD

14 data points across 3 retailers

3 retailers$162 USD to $610 USD

A
Cheapest Retailer
-
$162 USD
Final sale: no returns
B+
Retailer 2
-
$318 USD
£251 GBP
View
Most Expensive
B
Brilliant Earth
22151087A · Oct 29
$610 USD
View
2 more retailers have this diamond
Prices start from $162 USDSave up to $448 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
1.09ct Princess
$162 USD