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Radiant|Lab Grown|IGI

6.40ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG838655608

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

Certificate IGI LG838655608

Diamond specifications and retailer prices

From €1,013 EUR
$1,132 USD
As of October 31, 2026
Save €5,977 EUR (86%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €6,991 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.4ct lab-grown radiant diamond

This 6.4ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838655608 or 838655608. Listed at 3 retailers as of October 31, 2026, with prices from €1,013 to €6,991, a €5,977 spread on the same certified stone. Brilliant Earth lists it at €6,991. 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

6.40
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838655608
Dimensions13.23 × 9.26 × 6.11 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.23 mm9.26 mm6.40 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838655608
Side View
Table 66.0%Crown 42.3°Girdle: MED-STKPavilion 37°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €6,991 EUR|Low: €1,013 EUR|High: €13,194 EUR|Avg: €5,434 EUR|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3€1,013 EUR
Retailer 2€1,544 EUR
Brilliant Earth€6,991 EUR

31 data points across 3 retailers

3 retailers€1,013 EUR to €6,991 EUR

A
Cheapest Retailer
-
€1,013 EUR
$1,132 USD
Final sale: no returns
A
Retailer 2
-
€1,544 EUR
£1,358 GBP
View
Most Expensive
B
Brilliant Earth
21552716A · Oct 31
€6,991 EUR
$7,810 USD
View
2 more retailers have this diamond
Prices start from €1,013 EURSave up to €5,977 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
6.40ct Radiant
€1,013 EUR