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Oval|Lab Grown|IGI

3.16ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG780661587

Certificate IGI LG780661587

Diamond specifications and retailer prices

From $1,914 USD
Save $11,256 USD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,720 USD at Brilliant Earth
View at Brilliant Earth

About this 3.16ct lab-grown oval diamond

This 3.16ct 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 LG780661587 or 780661587. Listed at 15 retailers, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.16
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780661587
Dimensions13.43 × 7.51 × 4.86 mm
L/W Ratio1.79
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
13.43 mm7.51 mm3.16 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780661587
Side View
Table 63.0%Crown 39.4°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 64.7%

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: $16,720 USD|Low: $1,619 USD|High: $21,152 USD|Avg: $8,095 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
Retailer 18
Retailer 19
September 29, 2026
Retailer 13$1,914 USD
Retailer 16$2,082 USD
Retailer 4$2,266 USD
Retailer 18$2,276 USD
Retailer 5$2,617 USD
Retailer 3$2,958 USD
Retailer 15$3,368 USD
Retailer 2$3,734 USD
Retailer 17$3,840 USD
Retailer 7$4,011 USD
Retailer 6$6,008 USD
Retailer 14$6,115 USD
Retailer 12$6,727 USD
Retailer 10$7,622 USD
Retailer 19$13,170 USD
Retailer 9$13,675 USD
Brilliant Earth$16,720 USD
Retailer 11$19,496 USD
Retailer 8$21,152 USD

22 data points across 19 retailers

15 retailers$1,914 USD to $13,170 USD

A
Cheapest Retailer
-
$1,914 USD
A
Retailer 2
-
$2,082 USD
View
A
Retailer 3
-
$2,266 USD
View
A
Retailer 4
-
$2,276 USD
View
A
Retailer 5
-
$2,617 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$2,958 USD
View
A
Retailer 7
-
$3,368 USD
View
A
Retailer 8
-
$3,734 USD
View
B+
Retailer 9
-
$3,840 USD
View
B+
Retailer 10
-
$4,011 USD
€3,820 EUR
View
Price last confirmed 47 days ago
B+
Retailer 11
-
$6,008 USD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
$6,115 USD
View
B+
Retailer 13
-
$6,727 USD
£5,297 GBP
View
B
Retailer 14
-
$13,170 USD
View
Most Expensive
B
Brilliant Earth
18495262Y · Sep 11
$16,720 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from $1,914 USDSave up to $11,256 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
3.16ct Oval
$1,914 USD