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Radiant|Lab Grown|IGI

1.09ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG593372655

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG593372655

Diamond specifications and retailer prices

From €238 EUR
$267 USD
As of November 1, 2026
Save €672 EUR (74%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €910 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG593372655 or 593372655. Listed at 6 retailers as of November 1, 2026, with prices from €238 to €910, a €672 spread on the same certified stone. MOH London lists it at €910. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593372655
Dimensions7.20 × 5.07 × 3.43 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
7.20 mm5.07 mm1.09 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593372655
Side View
Table 65.0%Crown 48°Girdle: Slightly ThickPavilion 36.3°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €910 EUR|Low: €238 EUR|High: €922 EUR|Avg: €423 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6€238 EUR
Retailer 3€320 EUR
Retailer 2€349 EUR
Retailer 5€360 EUR
Retailer 4€395 EUR
MOH London€910 EUR

41 data points across 6 retailers

6 retailers€238 EUR to €910 EUR

A
Cheapest Retailer
-
€238 EUR
$267 USD
A
Retailer 2
-
€320 EUR
$359 USD
View
A
Retailer 3
-
€349 EUR
£309 GBP
View
Retailer 4
-
€360 EUR
$404 USD
View
Price last confirmed 74 days ago
B+
Retailer 5
-
€395 EUR
$443 USD
View
Most Expensive
B
MOH London
LG593372655 · Nov 1
€910 EUR
£804 GBP
View
5 more retailers have this diamond
Prices start from €238 EURSave up to €672 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 Radiant
€238 EUR