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Radiant|Lab Grown|IGI

4.08ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG733521151

Certificate IGI LG733521151

Diamond specifications and retailer prices

From $3,875 USD
Save $10,237 USD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $14,112 USD at Taylor and Hart
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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG733521151 or 733521151. Listed at 18 retailers, with prices from $3,875 to $14,112 at Taylor and Hart, a $10,237 spread on the same certified stone. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.5°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733521151
Dimensions11.65 × 7.77 × 5.08 mm
L/W Ratio1.50
Culet sizePointed
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
11.65 mm7.77 mm4.08 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733521151
Side View
Table 63.0%Crown 46.5°Girdle: MediumPavilion 32.8°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $6,226 USD|Low: $2,915 USD|High: $14,921 USD|Avg: $7,103 USD|+11.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Taylor and Hart
October 1, 2026
Retailer 5$3,875 USD
Retailer 16$3,919 USD
Retailer 15$4,170 USD
Retailer 14$4,698 USD
Retailer 9$5,478 USD
Retailer 4$5,571 USD
Retailer 10$5,767 USD
Retailer 3$6,142 USD
Retailer 1$6,226 USD
Retailer 2$6,296 USD
Retailer 11$8,387 USD
Retailer 12$8,679 USD
Retailer 13$8,702 USD
Retailer 8$10,932 USD
Retailer 6$11,140 USD
Retailer 7$13,598 USD
Taylor and Hart$14,112 USD

38 data points across 17 retailers

18 retailers$3,875 USD to $14,112 USD

A
Cheapest Retailer
-
$3,875 USD
A
Retailer 2
-
$3,919 USD
View
A
Retailer 3
-
$4,170 USD
View
A
Retailer 4
-
$4,698 USD
HK$36,700 HKD
View
A
Retailer 5
-
$5,490 USD
£4,323 GBP
View
A
Retailer 6
-
$5,571 USD
View
A
Retailer 7
-
$5,767 USD
View
A
Retailer 8
-
$6,142 USD
£4,836 GBP
View
A
Retailer 9
-
$6,226 USD
View
A
Retailer 10
-
$6,296 USD
€5,996 EUR
View
B+
Retailer 11
-
$8,387 USD
ZAR 135,496 ZAR
View
B+
Retailer 12
-
$8,679 USD
A$13,352 AUD
View
B+
Retailer 13
-
$8,702 USD
£6,852 GBP
View
B+
Retailer 14
-
$10,434 USD
View
B+
Retailer 15
-
$10,932 USD
View
B+
Retailer 16
-
$11,140 USD
View
B+
Retailer 17
-
$13,598 USD
SGD 18,376 SGD
View
Most Expensive
B
Taylor and Hart
IAHINGK · Oct 1
$14,112 USD
View
17 more retailers have this diamond
Prices start from $3,875 USDSave up to $10,237 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.

A
4.08ct Radiant
$3,875 USD