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Oval|Lab Grown|IGI

3.91ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG720525431

Certificate IGI LG720525431

Diamond specifications and retailer prices

From $3,709 USD
Save $16,071 USD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $19,780 USD at Brilliant Earth
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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720525431 or 720525431. Listed at 22 retailers, with prices from $3,709 to $19,780 at Brilliant Earth, a $16,071 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

3.91
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720525431
Dimensions9.00 × 12.86 × 5.34 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.00 mm12.86 mm3.91 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720525431
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 59.3%

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: Sep 30
Current: $19,780 USD|Low: $2,607 USD|High: $19,830 USD|Avg: $7,272 USD|-0.3%
Brilliant Earth
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
Retailer 16
Retailer 17
October 1, 2026
Retailer 16$3,709 USD
Retailer 7$3,940 USD
Retailer 3$4,021 USD
Retailer 17$4,973 USD
Retailer 9$5,123 USD
Retailer 11$5,148 USD
Retailer 6$5,425 USD
Retailer 4$5,776 USD
Retailer 5$6,057 USD
Retailer 2$6,262 USD
Retailer 8$6,980 USD
Retailer 13$8,591 USD
Retailer 12$8,622 USD
Retailer 14$9,704 USD
Retailer 15$9,789 USD
Retailer 10$11,697 USD
Brilliant Earth$19,780 USD

30 data points across 17 retailers

22 retailers$3,709 USD to $19,780 USD

A
Cheapest Retailer
-
$3,709 USD
A
Retailer 2
-
$3,940 USD
View
A
Retailer 3
-
$4,021 USD
View
B+
Retailer 4
-
$4,973 USD
View
B+
Retailer 5
-
$5,028 USD
£3,959 GBP
View
Price last confirmed 31 days ago
B+
Retailer 6
-
$5,123 USD
View
B+
Retailer 7
-
$5,155 USD
£4,059 GBP
View
B+
Retailer 8
-
$5,425 USD
View
B+
Retailer 9
-
$5,435 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$5,776 USD
£4,548 GBP
View
B+
Retailer 11
-
$6,057 USD
A$9,318 AUD
View
B+
Retailer 12
-
$6,262 USD
€5,964 EUR
View
B+
Retailer 13
-
$6,980 USD
View
Price last confirmed 58 days ago
B+
Retailer 14
-
$8,591 USD
A$13,217 AUD
View
B
Retailer 15
-
$8,622 USD
ZAR 139,293 ZAR
View
B+
Retailer 16
-
$9,704 USD
£7,641 GBP
View
B+
Retailer 17
-
$9,789 USD
View
B
Retailer 18
-
$10,266 USD
View
B
Retailer 19
-
$11,006 USD
View
B
Retailer 20
-
$11,697 USD
A$17,996 AUD
View
B
Retailer 21
-
$13,242 USD
View
Most Expensive
B
Brilliant Earth
15054039A · Oct 1
$19,780 USD
View
21 more retailers have this diamond
Prices start from $3,709 USDSave up to $16,071 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
3.91ct Oval
$3,709 USD