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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 $5,566 AUD
£3,079 GBP
As of October 27, 2026
Save $34,778 AUD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $40,345 AUD 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 $5,566 to $40,345, a $34,778 spread on the same certified stone. Brilliant Earth lists it at $40,345. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $43,235 AUD|Low: $5,566 AUD|High: $108,854 AUD|Avg: $32,131 AUD
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
November 1, 2026
Retailer 17$5,566 AUD
Retailer 12$7,719 AUD
Retailer 18$10,043 AUD
Retailer 13$10,115 AUD
Retailer 16$10,812 AUD
Retailer 6$10,893 AUD
Retailer 2$10,910 AUD
Retailer 8$11,371 AUD
Retailer 5$14,658 AUD
Retailer 4$17,203 AUD
Retailer 19$19,170 AUD
Retailer 7$19,289 AUD
Retailer 14$30,494 AUD
Retailer 3$34,017 AUD
Retailer 15$37,127 AUD
Brilliant Earth$43,235 AUD
Retailer 9$78,184 AUD
Retailer 11$78,184 AUD
Retailer 10$108,854 AUD

10 data points across 19 retailers

12 retailers$5,566 AUD to $40,345 AUD

A
Cheapest Retailer
-
$5,566 AUD
£3,079 GBP
A
Retailer 2
-
$7,719 AUD
$5,422 USD
View
B+
Retailer 3
-
$10,043 AUD
$7,055 USD
View
B+
Retailer 4
-
$10,115 AUD
$7,105 USD
View
B+
Retailer 5
-
$10,812 AUD
$7,595 USD
View
B+
Retailer 6
-
$10,910 AUD
£6,035 GBP
View
B
Retailer 7
-
$17,203 AUD
$12,085 USD
View
B
Retailer 8
-
$19,170 AUD
$13,466 USD
View
B
Retailer 9
-
$30,494 AUD
$21,420 USD
View
B
Retailer 10
-
$34,017 AUD
$23,895 USD
View
B
Retailer 11
-
$37,127 AUD
$26,080 USD
View
Most Expensive
B
Brilliant Earth
22301118A · Oct 31
$40,345 AUD
$28,340 USD
View
11 more retailers have this diamond
Prices start from $5,566 AUDSave up to $34,778 AUD

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
$5,566 AUD