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Radiant|Lab Grown|IGI

4.08ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804659528

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

Certificate IGI LG804659528

Diamond specifications and retailer prices

From $4,023 USD
As of October 29, 2026
Save $12,144 USD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $16,167 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 LG804659528 or 804659528. Listed at 14 retailers as of October 29, 2026, with prices from $4,023 to $16,167, a $12,144 spread on the same certified stone. Taylor and Hart lists it at $16,167. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659528
Dimensions11.10 × 8.03 × 5.34 mm
L/W Ratio1.38
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
11.10 mm8.03 mm4.08 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659528
Side View
Table 63.0%Crown 41.9°Girdle: Slightly ThickPavilion 34°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
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 29
Current: $5,984 USD|Low: $4,023 USD|High: $21,325 USD|Avg: $9,938 USD|-27.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 30, 2026
Retailer 10$4,023 USD
Retailer 11$4,257 USD
Retailer 12$5,760 USD
Retailer 1$5,984 USD
Retailer 9$6,985 USD
Retailer 3$7,983 USD
Retailer 5$9,707 USD
Retailer 6$9,822 USD
Retailer 2$10,435 USD
Retailer 7$12,207 USD
Retailer 4$12,460 USD
Retailer 8$15,922 USD
Taylor and Hart$16,167 USD

36 data points across 13 retailers

14 retailers$4,023 USD to $16,167 USD

A
Cheapest Retailer
-
$4,023 USD
A
Retailer 2
-
$4,257 USD
View
A
Retailer 3
-
$5,760 USD
HK$45,000 HKD
View
A
Retailer 4
-
$5,984 USD
£4,712 GBP
View
A
Retailer 5
-
$6,985 USD
View
Retailer 6
-
$7,416 USD
View
Price last confirmed 60 days ago
Retailer 7
-
$7,983 USD
€7,603 EUR
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$9,707 USD
ZAR 156,821 ZAR
View
B+
Retailer 9
-
$9,822 USD
£7,734 GBP
View
B+
Retailer 10
-
$10,435 USD
View
B+
Retailer 11
-
$12,207 USD
View
B
Retailer 12
-
$12,460 USD
View
B
Retailer 13
-
$15,922 USD
View
Most Expensive
B
Taylor and Hart
YF0PSJM · Oct 30
$16,167 USD
View
13 more retailers have this diamond
Prices start from $4,023 USDSave up to $12,144 USD

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
$4,023 USD