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Radiant|Lab Grown|IGI

4.08ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG816630990

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

Certificate IGI LG816630990

Diamond specifications and retailer prices

From €3,829 EUR
$4,278 USD
As of October 31, 2026
Save €21,036 EUR (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €24,866 EUR at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.08ct lab-grown radiant diamond

This 4.08ct 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 LG816630990 or 816630990. Listed at 22 retailers as of October 29, 2026, with prices from €3,829 to €24,866, a €21,036 spread on the same certified stone. Do Amore Diamonds lists it at €24,866. 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

4.08
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816630990
Dimensions11.35 × 8.00 × 5.25 mm
L/W Ratio1.42
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
11.35 mm8.00 mm4.08 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816630990
Side View
Table 61.0%Crown 44.3°Girdle: Slightly ThickPavilion 34.2°Culet: NoneDepth 65.6%

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 31
Current: €24,866 EUR|Low: €3,903 EUR|High: €24,866 EUR|Avg: €9,514 EUR
Do Amore Diamonds
Retailer 2
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Retailer 19
October 31, 2026
Retailer 18€3,903 EUR
Retailer 4€4,048 EUR
Retailer 14€4,243 EUR
Retailer 17€4,254 EUR
Retailer 10€5,184 EUR
Retailer 2€5,560 EUR
Retailer 12€6,004 EUR
Retailer 7€6,520 EUR
Retailer 3€7,259 EUR
Retailer 11€8,632 EUR
Retailer 8€8,745 EUR
Retailer 16€9,633 EUR
Retailer 13€9,849 EUR
Retailer 5€11,541 EUR
Retailer 6€12,666 EUR
Retailer 9€14,246 EUR
Retailer 19€16,519 EUR
Retailer 15€20,971 EUR
Do Amore Diamonds€24,866 EUR

34 data points across 19 retailers

22 retailers€3,829 EUR to €24,866 EUR

A
Cheapest Retailer
-
€3,829 EUR
$4,278 USD
A
Retailer 2
-
€3,903 EUR
$4,361 USD
View
Retailer 3
-
€3,989 EUR
$4,457 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
€4,048 EUR
$4,522 USD
View
Final sale: no returns
A
Retailer 5
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€4,243 EUR
$4,740 USD
View
Retailer 6
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€4,628 EUR
$5,170 USD
View
Price last confirmed 15 days ago
Retailer 7
-
€5,049 EUR
$5,641 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
€5,560 EUR
$6,212 USD
View
Retailer 9
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€5,589 EUR
$6,244 USD
View
Price last confirmed 28 days ago
Retailer 10
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€5,782 EUR
$6,460 USD
View
Price last confirmed 15 days ago
A
Retailer 11
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€6,004 EUR
£5,282 GBP
View
B+
Retailer 12
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€6,520 EUR
£5,736 GBP
View
B+
Retailer 13
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€7,259 EUR
$8,110 USD
View
Retailer 14
-
€8,632 EUR
$9,644 USD
View
Price last confirmed 15 days ago
B+
Retailer 15
-
€9,633 EUR
£8,474 GBP
View
B+
Retailer 16
-
€9,849 EUR
ZAR 177,759 ZAR
View
B+
Retailer 17
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€11,541 EUR
$12,893 USD
View
B
Retailer 18
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€12,666 EUR
$14,151 USD
View
Retailer 19
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€14,246 EUR
$15,916 USD
View
Price last confirmed 15 days ago
B
Retailer 20
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€16,519 EUR
$18,455 USD
View
B
Retailer 21
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€20,971 EUR
$23,429 USD
View
Most Expensive
B
Do Amore Diamonds
27-8AC82681D · Oct 29
€24,866 EUR
$27,780 USD
View
21 more retailers have this diamond
Prices start from €3,829 EURSave up to €21,036 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
4.08ct Radiant
€3,829 EUR