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Oval|Lab Grown|IGI

3.91ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG791655393

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG791655393

Diamond specifications and retailer prices

From $1,499 USD
As of October 23, 2026
Save $3,451 USD (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,950 USD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.91ct lab-grown oval diamond

This 3.91ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG791655393 or 791655393. Listed at 9 retailers as of October 23, 2026, with prices from $1,499 to $4,950, a $3,451 spread on the same certified stone. Brilliant Earth lists it at $4,950. 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

3.91
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791655393
Dimensions12.47 × 9.00 × 5.48 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.47 mm9.00 mm3.91 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791655393
Side View
Table 62.0%Crown 35.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 23
Current: $4,950 USD|Low: $382 USD|High: $9,310 USD|Avg: $1,862 USD|-46.8%
Brilliant Earth
Retailer 2
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Retailer 18
October 23, 2026
Retailer 6$382 USD
Retailer 8$422 USD
Retailer 11$810 USD
Retailer 16$876 USD
Retailer 17$892 USD
Retailer 3$935 USD
Retailer 18$1,051 USD
Retailer 12$1,078 USD
Retailer 15$1,499 USD
Retailer 4$1,568 USD
Retailer 14$1,669 USD
Retailer 5$2,132 USD
Retailer 7$2,244 USD
Retailer 10$2,337 USD
Retailer 9$3,752 USD
Retailer 13$4,564 USD
Retailer 2$4,830 USD
Brilliant Earth$4,950 USD

13 data points across 18 retailers

9 retailers$1,499 USD to $4,950 USD

Retailer 1
-
$810 USD
Price last confirmed 6 days ago
Retailer 2
-
$876 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$892 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$1,499 USD
View
Retailer 5
-
$1,669 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$3,752 USD
View
Price last confirmed 51 days ago
Retailer 7
-
$4,564 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$4,830 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
21657321A · Oct 26
$4,950 USD
View
8 more retailers have this diamond
Prices start from $1,499 USDSave up to $3,451 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
3.91ct Oval
$1,499 USD