CaratHunter
Plans
Princess|Lab Grown|IGI

1.05ct E SI1 Princess Lab Grown Diamond

EX • E/SI1 • IGI LG840658812

Shape and cutting style on the report: Princess cut

Certificate IGI LG840658812

Diamond specifications and retailer prices

From €150 EUR
As of November 5, 2026
Save €385 EUR (72%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €535 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.05ct lab-grown princess diamond

This 1.05ct 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 LG840658812 or 840658812. Listed at 3 retailers as of November 2, 2026, with prices from €150 to €535, a €385 spread on the same certified stone. Brilliant Earth lists it at €535. 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

1.05
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840658812
Dimensions5.56 × 5.50 × 3.98 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.56 mm5.50 mm1.05 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840658812
Side View
Table 69.0%Crown 38.5°Girdle: MediumPavilion 38.5°Culet: NoneDepth 72.4%

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 5
Current: €535 EUR|Low: €150 EUR|High: €535 EUR|Avg: €360 EUR|+1.7%
Brilliant Earth
Retailer 2
Retailer 3
November 3, 2026
Retailer 3€150 EUR
Retailer 2€298 EUR
Brilliant Earth€535 EUR

29 data points across 3 retailers

3 retailers€150 EUR to €535 EUR

A
Cheapest Retailer
-
€150 EUR
Final sale: no returns
B+
Retailer 2
-
€298 EUR
View
Most Expensive
B
Brilliant Earth
21622881A · Nov 2
€535 EUR
$600 USD
View
2 more retailers have this diamond
Prices start from €150 EURSave up to €385 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
1.05ct Princess
€150 EUR