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Radiant|Lab Grown|IGI

3.09ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG665421661

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

Certificate IGI LG665421661

Diamond specifications and retailer prices

From €522 EUR
As of November 4, 2026
Save €5,265 EUR (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €5,787 EUR at Brilliant Earth · As of November 4, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665421661 or 665421661. Listed at 25 retailers as of November 4, 2026, with prices from €522 to €5,787, a €5,265 spread on the same certified stone. Brilliant Earth lists it at €5,787. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665421661
Dimensions10.30 × 7.14 × 4.85 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.30 mm7.14 mm3.09 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665421661
Side View
Table 66.0%Crown 42.9°Girdle: MED-STKPavilion 35°Culet: NoneDepth 67.9%

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: Nov 4
Current: €5,787 EUR|Low: €522 EUR|High: €5,964 EUR|Avg: €1,783 EUR|-3.0%
Brilliant Earth
Retailer 2
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Retailer 22
November 5, 2026
Retailer 11€522 EUR
Retailer 7€584 EUR
Retailer 20€585 EUR
Retailer 10€647 EUR
Retailer 19€763 EUR
Retailer 21€958 EUR
Retailer 22€993 EUR
Retailer 2€1,002 EUR
Retailer 13€1,098 EUR
Retailer 5€1,314 EUR
Retailer 18€1,366 EUR
Retailer 17€1,405 EUR
Retailer 4€1,606 EUR
Retailer 9€1,702 EUR
Retailer 6€1,880 EUR
Retailer 8€2,066 EUR
Retailer 12€2,094 EUR
Retailer 3€2,158 EUR
Retailer 15€2,281 EUR
Retailer 14€2,498 EUR
Retailer 16€2,810 EUR
Brilliant Earth€5,787 EUR

46 data points across 22 retailers

25 retailers€522 EUR to €5,787 EUR

A
Cheapest Retailer
-
€522 EUR
A
Retailer 2
-
€584 EUR
View
Final sale: no returns
A
Retailer 3
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€585 EUR
View
A
Retailer 4
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€647 EUR
View
Retailer 5
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€677 EUR
View
Price last confirmed 20 days ago
A
Retailer 6
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€763 EUR
View
A
Retailer 7
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€958 EUR
View
A
Retailer 8
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€993 EUR
View
A
Retailer 9
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€1,002 EUR
View
A
Retailer 10
-
€1,098 EUR
View
B+
Retailer 11
-
€1,314 EUR
View
A
Retailer 12
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€1,366 EUR
View
B+
Retailer 13
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€1,405 EUR
View
B+
Retailer 14
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€1,606 EUR
View
B+
Retailer 15
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€1,702 EUR
View
B+
Retailer 16
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€1,855 EUR
View
B+
Retailer 17
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€1,880 EUR
View
B+
Retailer 18
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€2,066 EUR
View
B+
Retailer 19
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€2,094 EUR
View
B
Retailer 20
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€2,158 EUR
View
B
Retailer 21
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€2,186 EUR
View
B
Retailer 22
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€2,281 EUR
View
Retailer 23
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€2,498 EUR
View
Price last confirmed 15 days ago
B
Retailer 24
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€2,810 EUR
View
Most Expensive
B
Brilliant Earth
14713042A · Nov 4
€5,787 EUR
$6,520 USD
View
24 more retailers have this diamond
Prices start from €522 EURSave up to €5,265 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
€522 EUR