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Oval|Lab Grown|IGI

3.75ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG780661316

Certificate IGI LG780661316

Diamond specifications and retailer prices

From $2,704 USD
Save $18,156 USD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $20,860 USD at Brilliant Earth
View at Brilliant Earth

About this 3.75ct lab-grown oval diamond

This 3.75ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780661316 or 780661316. Listed at 16 retailers, with prices from $2,704 to $20,860 at Brilliant Earth, a $18,156 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

3.75
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780661316
Dimensions12.45 × 8.56 × 5.43 mm
L/W Ratio1.45
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
12.45 mm8.56 mm3.75 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780661316
Side View
Table 56.0%Crown 37.4°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 63.4%

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: Sep 28
Current: $20,860 USD|Low: $2,370 USD|High: $23,960 USD|Avg: $9,172 USD|-12.9%
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
Retailer 18
September 29, 2026
Retailer 12$2,704 USD
Retailer 15$2,942 USD
Retailer 17$3,088 USD
Retailer 5$3,300 USD
Retailer 7$3,318 USD
Retailer 3$3,582 USD
Retailer 6$4,174 USD
Retailer 14$4,327 USD
Retailer 2$4,808 USD
Retailer 18$5,403 USD
Retailer 8$6,919 USD
Retailer 13$8,544 USD
Retailer 11$8,882 USD
Retailer 10$13,889 USD
Retailer 4$18,610 USD
Retailer 16$19,079 USD
Brilliant Earth$20,860 USD
Retailer 9$22,046 USD

23 data points across 18 retailers

16 retailers$2,704 USD to $20,860 USD

A
Cheapest Retailer
-
$2,704 USD
A
Retailer 2
-
$2,942 USD
View
A
Retailer 3
-
$3,088 USD
View
A
Retailer 4
-
$3,300 USD
View
A
Retailer 5
-
$3,318 USD
View
A
Retailer 6
-
$3,582 USD
View
A
Retailer 7
-
$4,174 USD
View
A
Retailer 8
-
$4,327 USD
View
B+
Retailer 9
-
$4,808 USD
View
B+
Retailer 10
-
$5,403 USD
€5,146 EUR
View
B+
Retailer 11
-
$6,919 USD
View
Price last confirmed 73 days ago
B
Retailer 12
-
$8,544 USD
View
B+
Retailer 13
-
$8,882 USD
£6,994 GBP
View
B
Retailer 14
-
$18,610 USD
View
B
Retailer 15
-
$19,079 USD
View
Most Expensive
B
Brilliant Earth
18350368Y · Oct 1
$20,860 USD
View
15 more retailers have this diamond
Prices start from $2,704 USDSave up to $18,156 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
3.75ct Oval
$2,704 USD