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Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG816630988

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

Certificate IGI LG816630988

Diamond specifications and retailer prices

From €3,933 EUR
$4,394 USD
As of October 30, 2026
Save €12,342 EUR (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €16,275 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.02ct lab-grown radiant diamond

This 4.02ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816630988 or 816630988. Listed at 17 retailers as of October 30, 2026, with prices from €3,933 to €16,275, a €12,342 spread on the same certified stone. Taylor and Hart lists it at €16,275. 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

4.02
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816630988
Dimensions11.08 × 7.88 × 5.40 mm
L/W Ratio1.41
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.08 mm7.88 mm4.02 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816630988
Side View
Table 63.0%Crown 43.6°Girdle: Slightly ThickPavilion 35.7°Culet: NoneDepth 68.5%

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: €7,069 EUR|Low: €3,933 EUR|High: €19,622 EUR|Avg: €7,714 EUR|-23.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Taylor and Hart
October 31, 2026
Retailer 6€3,933 EUR
Retailer 12€4,122 EUR
Retailer 4€4,405 EUR
Retailer 8€4,563 EUR
Retailer 16€4,563 EUR
Retailer 11€4,601 EUR
Retailer 14€5,166 EUR
Retailer 7€5,702 EUR
Retailer 9€5,867 EUR
Retailer 13€5,937 EUR
Retailer 5€6,425 EUR
Retailer 15€7,060 EUR
Retailer 1€7,069 EUR
Retailer 3€8,536 EUR
Retailer 10€9,498 EUR
Retailer 2€12,679 EUR
Taylor and Hart€16,275 EUR

40 data points across 17 retailers

17 retailers€3,933 EUR to €16,275 EUR

A
Cheapest Retailer
-
€3,933 EUR
$4,394 USD
A
Retailer 2
-
€4,122 EUR
$4,605 USD
View
A
Retailer 3
-
€4,405 EUR
$4,921 USD
View
Final sale: no returns
A
Retailer 4
-
€4,563 EUR
$5,098 USD
View
Retailer 5
-
€4,563 EUR
$5,098 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
€4,601 EUR
$5,140 USD
View
A
Retailer 7
-
€5,166 EUR
$5,771 USD
View
A
Retailer 8
-
€5,702 EUR
$6,370 USD
View
A
Retailer 9
-
€5,867 EUR
£5,161 GBP
View
A
Retailer 10
-
€5,937 EUR
$6,633 USD
View
B+
Retailer 11
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€6,425 EUR
£5,652 GBP
View
B+
Retailer 12
-
€7,060 EUR
$7,888 USD
View
B+
Retailer 13
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€7,069 EUR
View
B+
Retailer 14
-
€8,536 EUR
$9,537 USD
View
B+
Retailer 15
-
€9,498 EUR
£8,355 GBP
View
B
Retailer 16
-
€12,679 EUR
$14,165 USD
View
Most Expensive
B
Taylor and Hart
RDWU3MF · Oct 31
€16,275 EUR
$18,183 USD
View
16 more retailers have this diamond
Prices start from €3,933 EURSave up to €12,342 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
4.02ct Radiant
€3,933 EUR