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Asscher|Lab Grown|IGI

1.09ct E SI1 Asscher Lab Grown Diamond

EX • E/SI1 • IGI LG845650120

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG845650120

Diamond specifications and retailer prices

From €137 EUR
$153 USD
As of October 30, 2026
Save €409 EUR (75%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €546 EUR at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.09ct lab-grown asscher diamond

This 1.09ct lab-grown asscher 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 LG845650120 or 845650120. Listed at 3 retailers as of October 26, 2026, with prices from €137 to €546, a €409 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845650120
Dimensions5.70 × 5.69 × 3.68 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.70 mm5.69 mm1.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845650120
Side View
Table 63.0%Crown 35.4°Girdle: MediumPavilion 39.4°Culet: NoneDepth 64.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €546 EUR|Low: €137 EUR|High: €546 EUR|Avg: €362 EUR
Brilliant Earth
Retailer 2
Retailer 3
October 27, 2026
Retailer 2€137 EUR
Retailer 3€269 EUR
Brilliant Earth€546 EUR

11 data points across 3 retailers

3 retailers€137 EUR to €546 EUR

A
Cheapest Retailer
-
€137 EUR
$153 USD
Final sale: no returns
A
Retailer 2
-
€269 EUR
£237 GBP
View
Most Expensive
B
Brilliant Earth
22150109A · Oct 26
€546 EUR
$610 USD
View
2 more retailers have this diamond
Prices start from €137 EURSave up to €409 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 Asscher
€137 EUR