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Oval|Lab Grown|IGI

3.91ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754593947

Certificate IGI LG754593947

Diamond specifications and retailer prices

From $2,140 USD
Save $17,640 USD (89%) vs most expensive(unlock to see where)
14 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 LG754593947 or 754593947. Listed at 14 retailers, with prices from $2,140 to $19,780 at Brilliant Earth, a $17,640 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754593947
Dimensions12.66 × 12.66 × 8.89 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
12.66 mm12.66 mm3.91 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754593947
Side View
Table 61.0%Crown 32.9°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 60.5%

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: $19,780 USD|Low: $1,529 USD|High: $19,780 USD|Avg: $6,660 USD
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 6$2,140 USD
Retailer 17$2,168 USD
Retailer 16$2,205 USD
Retailer 3$2,708 USD
Retailer 5$3,509 USD
Retailer 2$3,520 USD
Retailer 4$3,624 USD
Retailer 9$4,803 USD
Retailer 12$5,078 USD
Retailer 14$5,619 USD
Retailer 13$5,680 USD
Retailer 11$6,492 USD
Retailer 8$8,474 USD
Retailer 7$8,907 USD
Retailer 10$10,968 USD
Retailer 15$12,070 USD
Brilliant Earth$19,780 USD

24 data points across 17 retailers

14 retailers$2,140 USD to $19,780 USD

A
Cheapest Retailer
-
$2,140 USD
A
Retailer 2
-
$2,168 USD
View
A
Retailer 3
-
$2,205 USD
View
A
Retailer 4
-
$2,708 USD
View
A
Retailer 5
-
$3,509 USD
View
A
Retailer 6
-
$3,520 USD
€3,352 EUR
View
A
Retailer 7
-
$3,624 USD
View
B+
Retailer 8
-
$5,078 USD
A$7,812 AUD
View
B+
Retailer 9
-
$5,619 USD
View
B+
Retailer 10
-
$5,680 USD
View
B+
Retailer 11
-
$6,492 USD
£5,112 GBP
View
B
Retailer 12
-
$10,968 USD
A$16,874 AUD
View
B
Retailer 13
-
$12,070 USD
View
Most Expensive
B
Brilliant Earth
17680770Y · Oct 1
$19,780 USD
View
13 more retailers have this diamond
Prices start from $2,140 USDSave up to $17,640 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
$2,140 USD