Radiant|Lab Grown|IGI

4.29ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG754508859

Certificate IGI LG754508859

Diamond specifications and retailer prices

From $4,155 USD
Save $17,015 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $21,170 USD at Brilliant Earth
View at Brilliant Earth

About this 4.29ct lab-grown radiant diamond

This 4.29ct 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 LG754508859 or 754508859. Listed at 11 retailers, with prices from $4,155 to $21,170 at Brilliant Earth, a $17,015 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

4.29
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508859
Dimensions11.43 × 8.27 × 5.28 mm
L/W Ratio1.38
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
11.43 mm8.27 mm4.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508859
Side View
Table 65.0%Crown 40.7°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 63.8%

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: Sep 30
Current: $21,170 USD|Low: $4,048 USD|High: $21,170 USD|Avg: $8,985 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 1, 2026
Retailer 8$4,155 USD
Retailer 11$4,653 USD
Retailer 12$5,798 USD
Retailer 7$5,965 USD
Retailer 5$6,362 USD
Retailer 4$6,983 USD
Retailer 9$7,530 USD
Retailer 6$10,225 USD
Retailer 3$12,647 USD
Retailer 2$15,315 USD
Retailer 10$16,752 USD
Brilliant Earth$21,170 USD

34 data points across 12 retailers

11 retailers$4,155 USD to $21,170 USD

A
Cheapest Retailer
-
$4,155 USD
A
Retailer 2
-
$4,653 USD
View
A
Retailer 3
-
$5,798 USD
View
A
Retailer 4
-
$5,965 USD
HK$46,600 HKD
View
A
Retailer 5
-
$6,376 USD
£5,021 GBP
View
A
Retailer 6
-
$7,530 USD
€7,171 EUR
View
B+
Retailer 7
-
$10,225 USD
£8,051 GBP
View
B+
Retailer 8
-
$12,647 USD
View
B+
Retailer 9
-
$15,315 USD
A$23,562 AUD
View
B
Retailer 10
-
$16,752 USD
View
Most Expensive
B
Brilliant Earth
18652880Y · Oct 1
$21,170 USD
View
10 more retailers have this diamond
Prices start from $4,155 USDSave up to $17,015 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
4.29ct Radiant
$4,155 USD