Round|Lab Grown|IGI

3.90ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG804659326

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804659326

Diamond specifications and retailer prices

From $3,182 USD
As of October 29, 2026
Save $10,328 USD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $13,510 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.9ct lab-grown round diamond

This 3.9ct lab-grown round 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 LG804659326 or 804659326. Listed at 12 retailers as of October 29, 2026, with prices from $3,182 to $13,510, a $10,328 spread on the same certified stone. Brilliant Earth lists it at $13,510. 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

3.90
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659326
Dimensions10.12 × 10.06 × 6.19 mm
L/W Ratio1.01
Girdle conditionFaceted
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
10.12 mm10.06 mm3.90 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659326
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $13,510 USD|Low: $3,051 USD|High: $16,790 USD|Avg: $6,811 USD|-19.5%
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 30, 2026
Retailer 9$3,182 USD
Retailer 4$3,840 USD
Retailer 3$4,075 USD
Retailer 2$4,218 USD
Retailer 8$4,730 USD
Retailer 6$5,024 USD
Retailer 11$5,426 USD
Retailer 7$6,725 USD
Retailer 10$8,237 USD
Retailer 5$8,440 USD
Retailer 12$11,921 USD
Brilliant Earth$13,510 USD

41 data points across 12 retailers

12 retailers$3,182 USD to $13,510 USD

A
Cheapest Retailer
-
$3,182 USD
B+
Retailer 2
-
$3,840 USD
HK$30,000 HKD
View
B+
Retailer 3
-
$4,075 USD
View
B+
Retailer 4
-
$4,218 USD
£3,322 GBP
View
B+
Retailer 5
-
$4,730 USD
View
B+
Retailer 6
-
$5,024 USD
€4,785 EUR
View
B+
Retailer 7
-
$6,725 USD
View
B
Retailer 8
-
$8,237 USD
View
B+
Retailer 9
-
$8,440 USD
£6,646 GBP
View
B
Retailer 10
-
$10,932 USD
View
B
Retailer 11
-
$12,164 USD
View
Most Expensive
B
Brilliant Earth
20635014A · Oct 30
$13,510 USD
View
11 more retailers have this diamond
Prices start from $3,182 USDSave up to $10,328 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.90ct Round
$3,182 USD