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Radiant|Lab Grown|IGI

3.09ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG754564236

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

Certificate IGI LG754564236

Diamond specifications and retailer prices

From €305 EUR
$341 USD
As of October 30, 2026
Save €2,443 EUR (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,748 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG754564236 or 754564236. Listed at 18 retailers as of October 30, 2026, with prices from €305 to €2,748, a €2,443 spread on the same certified stone. Brilliant Earth lists it at €2,748. 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

3.09
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754564236
Dimensions10.57 × 7.25 × 4.84 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.57 mm7.25 mm3.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754564236
Side View
Table 65.0%Crown 37.8°Girdle: MediumPavilion 35.6°Culet: NoneDepth 66.8%

Caratlytics Score

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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: Oct 30
Current: €2,748 EUR|Low: €301 EUR|High: €2,811 EUR|Avg: €826 EUR|-1.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 18€305 EUR
Retailer 5€341 EUR
Retailer 15€354 EUR
Retailer 14€378 EUR
Retailer 17€378 EUR
Retailer 3€465 EUR
Retailer 7€508 EUR
Retailer 13€510 EUR
Retailer 12€601 EUR
Retailer 6€663 EUR
Retailer 11€678 EUR
Retailer 9€929 EUR
Retailer 4€1,108 EUR
Retailer 16€1,215 EUR
Retailer 10€1,253 EUR
Retailer 8€1,470 EUR
Retailer 2€1,514 EUR
Brilliant Earth€2,748 EUR

38 data points across 18 retailers

18 retailers€305 EUR to €2,748 EUR

A
Cheapest Retailer
-
€305 EUR
$341 USD
A
Retailer 2
-
€341 EUR
$381 USD
View
Final sale: no returns
A
Retailer 3
-
€354 EUR
$395 USD
View
A
Retailer 4
-
€378 EUR
$422 USD
View
Retailer 5
-
€378 EUR
$422 USD
View
Price last confirmed 7 days ago
Retailer 6
-
€465 EUR
£409 GBP
View
Price last confirmed 16 days ago
B+
Retailer 7
-
€508 EUR
$568 USD
View
A
Retailer 8
-
€510 EUR
$570 USD
View
A
Retailer 9
-
€601 EUR
View
A
Retailer 10
-
€663 EUR
$741 USD
View
A
Retailer 11
-
€678 EUR
£597 GBP
View
B+
Retailer 12
-
€929 EUR
$1,038 USD
View
B+
Retailer 13
-
€1,108 EUR
$1,238 USD
View
B+
Retailer 14
-
€1,215 EUR
$1,357 USD
View
B+
Retailer 15
-
€1,253 EUR
$1,400 USD
View
B+
Retailer 16
-
€1,470 EUR
$1,642 USD
View
B+
Retailer 17
-
€1,514 EUR
£1,332 GBP
View
Most Expensive
B
Brilliant Earth
18587410A · Oct 31
€2,748 EUR
$3,070 USD
View
17 more retailers have this diamond
Prices start from €305 EURSave up to €2,443 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
3.09ct Radiant
€305 EUR