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Oval|Lab Grown|IGI

3.78ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG732516314

Certificate IGI LG732516314

Diamond specifications and retailer prices

From $2,024 USD
Save $17,096 USD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $19,120 USD at Brilliant Earth
View at Brilliant Earth

About this 3.78ct lab-grown oval diamond

This 3.78ct 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 LG732516314 or 732516314. Listed at 13 retailers, with prices from $2,024 to $19,120 at Brilliant Earth, a $17,096 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

3.78
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.9°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732516314
Dimensions12.56 × 8.93 × 5.30 mm
L/W Ratio1.41
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
12.56 mm8.93 mm3.78 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732516314
Side View
Table 57.0%Crown 30.9°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 59.4%

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: $19,120 USD|Low: $1,446 USD|High: $19,120 USD|Avg: $6,282 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
October 1, 2026
Retailer 5$2,024 USD
Retailer 14$2,101 USD
Retailer 13$2,135 USD
Retailer 15$2,620 USD
Retailer 11$3,366 USD
Retailer 3$3,403 USD
Retailer 4$3,481 USD
Retailer 9$4,911 USD
Retailer 10$5,443 USD
Retailer 6$5,939 USD
Retailer 2$6,280 USD
Retailer 7$7,472 USD
Retailer 8$9,803 USD
Retailer 12$11,670 USD
Brilliant Earth$19,120 USD

22 data points across 15 retailers

13 retailers$2,024 USD to $19,120 USD

A
Cheapest Retailer
-
$2,024 USD
A
Retailer 2
-
$2,101 USD
View
A
Retailer 3
-
$2,135 USD
View
A
Retailer 4
-
$2,620 USD
View
A
Retailer 5
-
$3,366 USD
€3,206 EUR
View
A
Retailer 6
-
$3,403 USD
View
A
Retailer 7
-
$3,481 USD
View
B+
Retailer 8
-
$4,911 USD
A$7,556 AUD
View
B+
Retailer 9
-
$5,443 USD
View
B+
Retailer 10
-
$6,280 USD
£4,945 GBP
View
B+
Retailer 11
-
$9,803 USD
A$15,081 AUD
View
B+
Retailer 12
-
$11,670 USD
View
Most Expensive
B
Brilliant Earth
16112401Y · Oct 1
$19,120 USD
View
12 more retailers have this diamond
Prices start from $2,024 USDSave up to $17,096 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
3.78ct Oval
$2,024 USD