Radiant|Lab Grown|IGI

4.26ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768630092

Certificate IGI LG768630092

Diamond specifications and retailer prices

From $4,848 USD
Save $18,272 USD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $23,120 USD at Brilliant Earth
View at Brilliant Earth

About this 4.26ct lab-grown radiant diamond

This 4.26ct 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 LG768630092 or 768630092. Listed at 13 retailers, with prices from $4,848 to $23,120 at Brilliant Earth, a $18,272 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

4.26
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630092
Dimensions11.88 × 8.07 × 5.35 mm
L/W Ratio1.47
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
11.88 mm8.07 mm4.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630092
Side View
Table 60.0%Crown 38.1°Girdle: MediumPavilion 33.2°Culet: NoneDepth 66.3%

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: $23,120 USD|Low: $4,463 USD|High: $27,120 USD|Avg: $11,764 USD|-14.7%
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$4,463 USD
Retailer 2$4,848 USD
Retailer 3$5,512 USD
Retailer 4$7,414 USD
Retailer 10$7,700 USD
Retailer 9$8,085 USD
Retailer 6$8,448 USD
Retailer 14$10,713 USD
Retailer 11$11,831 USD
Retailer 7$12,777 USD
Retailer 13$13,828 USD
Retailer 8$16,832 USD
Retailer 12$22,066 USD
Brilliant Earth$23,120 USD

34 data points across 14 retailers

13 retailers$4,848 USD to $23,120 USD

A
Cheapest Retailer
-
$4,848 USD
A
Retailer 2
-
$5,512 USD
View
A
Retailer 3
-
$7,414 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
$7,700 USD
View
A
Retailer 5
-
$8,085 USD
£6,366 GBP
View
B+
Retailer 6
-
$8,448 USD
HK$66,000 HKD
View
B+
Retailer 7
-
$10,713 USD
€10,203 EUR
View
B+
Retailer 8
-
$11,831 USD
View
B+
Retailer 9
-
$12,777 USD
£10,061 GBP
View
B
Retailer 10
-
$13,828 USD
ZAR 223,387 ZAR
View
B
Retailer 11
-
$16,832 USD
View
B
Retailer 12
-
$22,066 USD
View
Most Expensive
B
Brilliant Earth
19647460Y · Oct 1
$23,120 USD
View
12 more retailers have this diamond
Prices start from $4,848 USDSave up to $18,272 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
4.26ct Radiant
$4,848 USD