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Oval|Lab Grown|IGI

0.40ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG839698278

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839698278

Diamond specifications and retailer prices

From $305 USD
As of October 29, 2026
Save $1,266 USD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,571 USD at Riddles Jewelry · As of October 29, 2026
View at Riddles Jewelry

About this 0.4ct lab-grown oval diamond

This 0.4ct lab-grown oval sits in the sub-half-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839698278 or 839698278. Listed at 15 retailers as of October 29, 2026, with prices from $305 to $1,571, a $1,266 spread on the same certified stone. Riddles Jewelry lists it at $1,571. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.40
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839698278
Dimensions6.11 × 4.15 × 2.51 mm
L/W Ratio1.47
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
6.11 mm4.15 mm0.40 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839698278
Side View
Table 60.0%Crown 33.6°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.5%

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: $671 USD|Low: $305 USD|High: $1,571 USD|Avg: $806 USD|+1.3%
Retailer 1
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
Retailer 15
Riddles Jewelry
October 30, 2026
Retailer 14$305 USD
Retailer 4$353 USD
Retailer 15$374 USD
Retailer 2$378 USD
Retailer 13$378 USD
Retailer 7$538 USD
Retailer 11$590 USD
Retailer 12$600 USD
Retailer 1$671 USD
Retailer 9$683 USD
Retailer 10$806 USD
Retailer 3$1,214 USD
Retailer 5$1,261 USD
Retailer 6$1,331 USD
Retailer 8$1,521 USD
Riddles Jewelry$1,571 USD

27 data points across 16 retailers

15 retailers$305 USD to $1,571 USD

A
Cheapest Retailer
-
$305 USD
A
Retailer 2
-
$353 USD
View
B+
Retailer 3
-
$374 USD
View
Final sale: no returns
B+
Retailer 4
-
$378 USD
View
B+
Retailer 5
-
$378 USD
View
B+
Retailer 6
-
$538 USD
View
B+
Retailer 7
-
$600 USD
View
B+
Retailer 8
-
$671 USD
£528 GBP
View
B+
Retailer 9
-
$683 USD
ZAR 11,035 ZAR
View
B
Retailer 10
-
$806 USD
View
B
Retailer 11
-
$1,214 USD
View
B
Retailer 12
-
$1,261 USD
View
B
Retailer 13
-
$1,331 USD
CA$1,848 CAD
View
B
Retailer 14
-
$1,521 USD
£1,198 GBP
View
Most Expensive
B
Riddles Jewelry
1987846445 · Oct 29
$1,571 USD
View
14 more retailers have this diamond
Prices start from $305 USDSave up to $1,266 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
0.40ct Oval
$305 USD