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Radiant|Lab Grown|IGI

16.80ct F VS2 Radiant Lab Grown Diamond

ID • F/VS2 • IGI LG579385502

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG579385502

Diamond specifications and retailer prices

From $6,502 NZD
£2,880 GBP
As of November 2, 2026
Save $6,037 NZD (48%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $12,539 NZD at Loose Grown Diamond · As of November 1, 2026
View at Loose Grown Diamond

About this 16.8ct lab-grown radiant diamond

This 16.8ct lab-grown radiant 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 LG579385502 or 579385502. Listed at 5 retailers as of November 1, 2026, with prices from $6,502 to $12,539, a $6,037 spread on the same certified stone. Loose Grown Diamond lists it at $12,539. 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

16.80
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579385502
Dimensions18.24 × 18.24 × 12.47 mm
L/W Ratio1.00
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
18.24 mm18.24 mm16.80 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579385502
Side View
Table 65.0%Crown 45.7°Girdle: Slightly ThickPavilion 33.7°Culet: NoneDepth 66.1%

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: Nov 2
Current: $12,539 NZD|Low: $6,502 NZD|High: $35,155 NZD|Avg: $16,058 NZD|-15.0%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2$6,502 NZD
Retailer 4$8,193 NZD
Retailer 6$9,238 NZD
Retailer 7$9,304 NZD
Retailer 5$9,487 NZD
Retailer 3$10,737 NZD
Loose Grown Diamond$12,539 NZD
Retailer 9$15,331 NZD
Retailer 8$34,045 NZD
Retailer 10$35,155 NZD

22 data points across 10 retailers

5 retailers$6,502 NZD to $12,539 NZD

A
Cheapest Retailer
-
$6,502 NZD
£2,880 GBP
A
Retailer 2
-
$8,193 NZD
$4,610 USD
View
B+
Retailer 3
-
$9,487 NZD
HK$41,700 HKD
View
B+
Retailer 4
-
$10,737 NZD
$6,041 USD
View
Most Expensive
B+
Loose Grown Diamond
579385502 · Nov 1
$12,539 NZD
$7,055 USD
View
4 more retailers have this diamond
Prices start from $6,502 NZDSave up to $6,037 NZD

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
16.80ct Radiant
$6,502 NZD