Radiant|Lab Grown|IGI

4.09ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG821640974

Certificate IGI LG821640974

Diamond specifications and retailer prices

From $4,570 USD
Save $22,180 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $26,750 USD at Do Amore Diamonds
View at Do Amore Diamonds

About this 4.09ct lab-grown radiant diamond

This 4.09ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821640974 or 821640974. Listed at 10 retailers, with prices from $4,570 to $26,750 at Do Amore Diamonds, a $22,180 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

4.09
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821640974
Dimensions11.67 × 8.04 × 5.19 mm
L/W Ratio1.45
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
11.67 mm8.04 mm4.09 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821640974
Side View
Table 63.0%Crown 40.5°Girdle: STK-THKPavilion 34°Culet: NoneDepth 64.6%

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: $26,750 USD|Low: $4,570 USD|High: $28,960 USD|Avg: $12,504 USD|-7.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
September 29, 2026
Retailer 4$4,570 USD
Retailer 6$4,758 USD
Retailer 7$6,104 USD
Retailer 2$6,349 USD
Retailer 5$7,929 USD
Retailer 8$8,050 USD
Retailer 3$10,433 USD
Retailer 9$18,970 USD
Retailer 10$23,285 USD
Do Amore Diamonds$26,750 USD

16 data points across 10 retailers

10 retailers$4,570 USD to $26,750 USD

A
Cheapest Retailer
-
$4,570 USD
A
Retailer 2
-
$4,758 USD
View
A
Retailer 3
-
$6,104 USD
View
A
Retailer 4
-
$6,349 USD
View
B+
Retailer 5
-
$7,929 USD
€7,551 EUR
View
B+
Retailer 6
-
$8,050 USD
View
B+
Retailer 7
-
$10,433 USD
£8,215 GBP
View
B
Retailer 8
-
$18,970 USD
View
B
Retailer 9
-
$23,285 USD
View
Price last confirmed 44 days ago
Most Expensive
B
Do Amore Diamonds
27-CF9C1CD9A · Sep 30
$26,750 USD
View
9 more retailers have this diamond
Prices start from $4,570 USDSave up to $22,180 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
4.09ct Radiant
$4,570 USD