Radiant|Lab Grown|IGI

4.40ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG821638897

Certificate IGI LG821638897

Diamond specifications and retailer prices

From $6,145 USD
Save $30,375 USD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $36,520 USD at With Clarity
View at With Clarity

About this 4.4ct lab-grown radiant diamond

This 4.4ct 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 LG821638897 or 821638897. Listed at 9 retailers, with prices from $6,145 to $36,520 at With Clarity, a $30,375 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

4.40
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638897
Dimensions11.52 × 8.21 × 5.30 mm
L/W Ratio1.40
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
11.52 mm8.21 mm4.40 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638897
Side View
Table 64.0%Crown 43°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 64.6%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $7,976 USD|Low: $6,145 USD|High: $36,686 USD|Avg: $14,616 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
September 29, 2026
Retailer 8$6,145 USD
Retailer 5$7,133 USD
Retailer 1$7,976 USD
Retailer 7$10,588 USD
Retailer 3$11,579 USD
Retailer 2$12,623 USD
Retailer 4$14,274 USD
Retailer 6$23,880 USD
With Clarity$35,790 USD

14 data points across 9 retailers

9 retailers$6,145 USD to $36,520 USD

A
Cheapest Retailer
-
$6,145 USD
A
Retailer 2
-
$7,133 USD
View
B+
Retailer 3
-
$7,976 USD
View
B
Retailer 4
-
$10,588 USD
View
B
Retailer 5
-
$11,579 USD
€11,028 EUR
View
B+
Retailer 6
-
$12,623 USD
£9,939 GBP
View
B
Retailer 7
-
$14,274 USD
View
B
Retailer 8
-
$23,880 USD
View
Most Expensive
B
With Clarity
821638897 · Sep 30
$36,520 USD
View
8 more retailers have this diamond
Prices start from $6,145 USDSave up to $30,375 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
4.40ct Radiant
$6,145 USD