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Radiant|Lab Grown|IGI

15.16ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG582351465

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

Certificate IGI LG582351465

Diamond specifications and retailer prices

From $2,565 AUD
£1,419 GBP
As of November 2, 2026
Save $3,421 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,986 AUD at NZ Jewellers · As of November 1, 2026
View at NZ Jewellers

About this 15.16ct lab-grown radiant diamond

This 15.16ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG582351465 or 582351465. Listed at 13 retailers as of November 1, 2026, with prices from $2,565 to $5,986, a $3,421 spread on the same certified stone. NZ Jewellers lists it at $5,986. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

15.16
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG582351465
Dimensions17.73 × 12.12 × 8.01 mm
L/W Ratio1.46
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
17.73 mm12.12 mm15.16 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG582351465
Side View
Table 65.0%Crown 44.7°Girdle: Slightly ThickPavilion 34.3°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: $5,986 AUD|Low: $2,565 AUD|High: $70,249 AUD|Avg: $14,010 AUD
NZ Jewellers
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
November 2, 2026
Retailer 2$2,565 AUD
Retailer 5$2,753 AUD
Retailer 4$2,995 AUD
Retailer 13$3,193 AUD
Retailer 14$3,431 AUD
Retailer 16$3,754 AUD
Retailer 15$4,128 AUD
Retailer 9$4,356 AUD
Retailer 10$5,001 AUD
Retailer 11$5,082 AUD
Retailer 12$5,245 AUD
NZ Jewellers$5,986 AUD
Retailer 8$15,102 AUD
Retailer 3$21,736 AUD
Retailer 7$34,793 AUD
Retailer 6$70,249 AUD

7 data points across 16 retailers

13 retailers$2,565 AUD to $5,986 AUD

A
Cheapest Retailer
-
$2,565 AUD
£1,419 GBP
A
Retailer 2
-
$2,753 AUD
$1,934 USD
View
A
Retailer 3
-
$2,995 AUD
$2,104 USD
View
A
Retailer 4
-
$3,193 AUD
$2,243 USD
View
A
Retailer 5
-
$3,431 AUD
$2,410 USD
View
B+
Retailer 6
-
$3,754 AUD
HK$20,600 HKD
View
B+
Retailer 7
-
$4,128 AUD
$2,900 USD
View
B+
Retailer 8
-
$4,356 AUD
£2,409 GBP
View
B+
Retailer 9
-
$5,001 AUD
$3,513 USD
View
B
Retailer 10
-
$5,082 AUD
€3,400 EUR
View
B+
Retailer 11
-
$5,245 AUD
$3,684 USD
View
Most Expensive
B
NZ Jewellers
580b4fb6-7132-46dd-9328-ed605ef34208 · Nov 1
$5,986 AUD
$4,205 USD
View
11 more retailers have this diamond
Prices start from $2,565 AUDSave up to $3,421 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
15.16ct Radiant
$2,565 AUD