Radiant|Lab Grown|IGI

4.31ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768629425

Certificate IGI LG768629425

Diamond specifications and retailer prices

From $5,021 USD
Save $18,369 USD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $23,390 USD at Brilliant Earth
View at Brilliant Earth

About this 4.31ct lab-grown radiant diamond

This 4.31ct 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 LG768629425 or 768629425. Listed at 13 retailers, with prices from $5,021 to $23,390 at Brilliant Earth, a $18,369 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

4.31
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629425
Dimensions11.37 × 8.20 × 5.35 mm
L/W Ratio1.39
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
11.37 mm8.20 mm4.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629425
Side View
Table 62.0%Crown 41.8°Girdle: MED-STKPavilion 33.8°Culet: NoneDepth 65.2%

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 29
Current: $23,390 USD|Low: $4,516 USD|High: $27,440 USD|Avg: $11,968 USD|-14.8%
Brilliant Earth
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
October 1, 2026
Retailer 5$4,516 USD
Retailer 3$5,021 USD
Retailer 14$5,572 USD
Retailer 9$7,790 USD
Retailer 8$8,180 USD
Retailer 4$8,366 USD
Retailer 6$8,550 USD
Retailer 13$10,838 USD
Retailer 10$11,969 USD
Retailer 2$12,922 USD
Retailer 12$13,984 USD
Retailer 7$17,030 USD
Retailer 11$22,272 USD
Brilliant Earth$23,390 USD

34 data points across 14 retailers

13 retailers$5,021 USD to $23,390 USD

A
Cheapest Retailer
-
$5,021 USD
A
Retailer 2
-
$5,572 USD
View
A
Retailer 3
-
$7,790 USD
View
A
Retailer 4
-
$8,180 USD
£6,441 GBP
View
B+
Retailer 5
-
$8,366 USD
View
Price last confirmed 52 days ago
B+
Retailer 6
-
$8,550 USD
HK$66,800 HKD
View
B+
Retailer 7
-
$10,838 USD
€10,322 EUR
View
B+
Retailer 8
-
$11,969 USD
View
B+
Retailer 9
-
$12,922 USD
£10,175 GBP
View
B
Retailer 10
-
$13,984 USD
ZAR 225,913 ZAR
View
B
Retailer 11
-
$17,030 USD
View
B
Retailer 12
-
$22,272 USD
View
Most Expensive
B
Brilliant Earth
19647729Y · Oct 1
$23,390 USD
View
12 more retailers have this diamond
Prices start from $5,021 USDSave up to $18,369 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
4.31ct Radiant
$5,021 USD