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Oval|Lab Grown|IGI

3.78ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG710572112

Certificate IGI LG710572112

Diamond specifications and retailer prices

From $2,366 USD
Save $14,594 USD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $16,960 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 LG710572112 or 710572112. Listed at 21 retailers, with prices from $2,366 to $16,960 at Brilliant Earth, a $14,594 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG710572112
Dimensions12.53 × 8.82 × 5.54 mm
L/W Ratio1.42
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
12.53 mm8.82 mm3.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG710572112
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.8%

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: $16,960 USD|Low: $1,689 USD|High: $16,960 USD|Avg: $5,586 USD|+0.4%
Brilliant Earth
Retailer 2
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Retailer 5
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Retailer 20
September 29, 2026
Retailer 20$2,366 USD
Retailer 19$2,600 USD
Retailer 3$2,615 USD
Retailer 8$2,829 USD
Retailer 2$3,429 USD
Retailer 5$3,702 USD
Retailer 9$4,024 USD
Retailer 17$4,208 USD
Retailer 10$4,478 USD
Retailer 4$4,648 USD
Retailer 15$5,540 USD
Retailer 13$5,587 USD
Retailer 16$6,080 USD
Retailer 14$6,728 USD
Retailer 6$7,072 USD
Retailer 11$7,297 USD
Retailer 7$7,912 USD
Retailer 18$8,195 USD
Retailer 12$8,570 USD
Brilliant Earth$16,960 USD

34 data points across 20 retailers

21 retailers$2,366 USD to $16,960 USD

A
Cheapest Retailer
-
$2,366 USD
A
Retailer 2
-
$2,600 USD
View
A
Retailer 3
-
$2,615 USD
View
A
Retailer 4
-
$2,829 USD
HK$22,100 HKD
View
A
Retailer 5
-
$3,437 USD
£2,706 GBP
View
A
Retailer 6
-
$3,702 USD
View
A
Retailer 7
-
$4,024 USD
View
A
Retailer 8
-
$4,208 USD
€4,008 EUR
View
B+
Retailer 9
-
$4,478 USD
View
B+
Retailer 10
-
$4,648 USD
£3,660 GBP
View
B+
Retailer 11
-
$5,540 USD
A$8,523 AUD
View
B+
Retailer 12
-
$5,587 USD
ZAR 90,262 ZAR
View
B+
Retailer 13
-
$6,080 USD
View
B+
Retailer 14
-
$6,728 USD
£5,298 GBP
View
B+
Retailer 15
-
$6,801 USD
View
B+
Retailer 16
-
$7,072 USD
View
B+
Retailer 17
-
$7,297 USD
View
B
Retailer 18
-
$7,912 USD
£6,230 GBP
View
B
Retailer 19
-
$8,195 USD
SGD 11,074 SGD
View
B
Retailer 20
-
$8,570 USD
View
Most Expensive
B
Brilliant Earth
14335836A · Oct 1
$16,960 USD
View
20 more retailers have this diamond
Prices start from $2,366 USDSave up to $14,594 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
$2,366 USD