Radiant|Lab Grown|IGI

3.09ct I SI1 Radiant Lab Grown Diamond

ID • I/SI1 • IGI LG522239756

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

Certificate IGI LG522239756

Diamond specifications and retailer prices

From €594 EUR
$664 USD
As of October 30, 2026
Save €5,483 EUR (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €8,215 EUR at Ting Diamond · As of October 30, 2026
View at Ting Diamond

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522239756 or 522239756. Listed at 16 retailers as of October 29, 2026, with a 923% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522239756
Dimensions9.84 × 7.49 × 4.70 mm
L/W Ratio1.31
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.84 mm7.49 mm3.09 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522239756
Side View
Table 67.0%Crown 44.4°Girdle: STK-THKPavilion 32.3°Culet: NoneDepth 62.8%

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: €822 EUR|Low: €570 EUR|High: €8,215 EUR|Avg: €2,193 EUR|-1.0%
Retailer 1
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
Ting Diamond
October 30, 2026
Retailer 12€594 EUR
Retailer 16€646 EUR
Retailer 3€664 EUR
Retailer 2€689 EUR
Retailer 13€689 EUR
Retailer 1€822 EUR
Retailer 9€846 EUR
Retailer 5€963 EUR
Retailer 4€1,043 EUR
Retailer 15€1,123 EUR
Retailer 11€1,761 EUR
Retailer 14€1,938 EUR
Retailer 6€2,377 EUR
Retailer 10€2,907 EUR
Retailer 8€4,531 EUR
Retailer 7€6,078 EUR
Ting Diamond€8,215 EUR

38 data points across 17 retailers

16 retailers€594 EUR to €6,078 EUR

A
Cheapest Retailer
-
€594 EUR
$664 USD
A
Retailer 2
-
€646 EUR
$722 USD
View
A
Retailer 3
-
€664 EUR
$742 USD
View
Final sale: no returns
A
Retailer 4
-
€689 EUR
$770 USD
View
Retailer 5
-
€689 EUR
$770 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
€822 EUR
£723 GBP
View
A
Retailer 7
-
€846 EUR
$945 USD
View
A
Retailer 8
-
€963 EUR
$1,076 USD
View
B+
Retailer 9
-
€1,043 EUR
$1,165 USD
View
B+
Retailer 10
-
€1,123 EUR
$1,255 USD
View
B+
Retailer 11
-
€1,761 EUR
$1,967 USD
View
B+
Retailer 12
-
€1,938 EUR
$2,165 USD
View
B+
Retailer 13
-
€2,377 EUR
$2,656 USD
View
B
Retailer 14
-
€2,907 EUR
£2,557 GBP
View
B
Retailer 15
-
€6,078 EUR
$6,790 USD
View
Most Expensive
Ting Diamond
10185574 · Oct 30
€8,215 EUR
HK$71,700 HKD
View
Price under review
15 more retailers have this diamond
Prices start from €594 EURSave up to €5,483 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
€594 EUR