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Oval|Lab Grown|IGI

16.78ct F VS2 Oval Lab Grown Diamond

ID • F/VS2 • IGI LG586343113

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG586343113

Diamond specifications and retailer prices

From $3,910 USD
£3,079 GBP
As of October 27, 2026
Save $24,430 USD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $28,340 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 16.78ct lab-grown oval diamond

This 16.78ct lab-grown oval sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG586343113 or 586343113. Listed at 12 retailers as of October 27, 2026, with prices from $3,910 to $28,340, a $24,430 spread on the same certified stone. Brilliant Earth lists it at $28,340. 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

16.78
Carat
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG586343113
Dimensions20.92 × 14.57 × 9.05 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
20.92 mm14.57 mm16.78 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG586343113
Side View
Table 59.0%Crown 35.8°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $30,370 USD|Low: $3,910 USD|High: $76,464 USD|Avg: $22,570 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
November 1, 2026
Retailer 17$3,910 USD
Retailer 12$5,422 USD
Retailer 18$7,055 USD
Retailer 13$7,105 USD
Retailer 16$7,595 USD
Retailer 6$7,652 USD
Retailer 2$7,664 USD
Retailer 8$7,987 USD
Retailer 5$10,296 USD
Retailer 4$12,085 USD
Retailer 19$13,466 USD
Retailer 7$13,549 USD
Retailer 14$21,420 USD
Retailer 3$23,895 USD
Retailer 15$26,080 USD
Brilliant Earth$30,370 USD
Retailer 9$54,920 USD
Retailer 11$54,920 USD
Retailer 10$76,464 USD

10 data points across 19 retailers

12 retailers$3,910 USD to $28,340 USD

A
Cheapest Retailer
-
$3,910 USD
£3,079 GBP
A
Retailer 2
-
$5,422 USD
View
B+
Retailer 3
-
$7,055 USD
View
B+
Retailer 4
-
$7,105 USD
View
B+
Retailer 5
-
$7,595 USD
View
B+
Retailer 6
-
$7,664 USD
£6,035 GBP
View
B
Retailer 7
-
$12,085 USD
View
B
Retailer 8
-
$13,466 USD
View
B
Retailer 9
-
$21,420 USD
View
B
Retailer 10
-
$23,895 USD
View
B
Retailer 11
-
$26,080 USD
View
Most Expensive
B
Brilliant Earth
22301118A · Oct 31
$28,340 USD
View
11 more retailers have this diamond
Prices start from $3,910 USDSave up to $24,430 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
16.78ct Oval
$3,910 USD