Radiant|Lab Grown|IGI

15.09ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG805644300

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

Certificate IGI LG805644300

Diamond specifications and retailer prices

From $6,211 NZD
HK$27,300 HKD
As of November 1, 2026
Save $20,733 NZD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $26,944 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 15.09ct lab-grown radiant diamond

This 15.09ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG805644300 or 805644300. Listed at 21 retailers as of November 1, 2026, with prices from $6,211 to $26,944, a $20,733 spread on the same certified stone. Brilliant Earth lists it at $26,944. 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

15.09
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805644300
Dimensions17.00 × 12.46 × 8.05 mm
L/W Ratio1.36
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.00 mm12.46 mm15.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805644300
Side View
Table 66.0%Crown 43.5°Girdle: MediumPavilion 33.7°Culet: NoneDepth 64.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $26,944 NZD|Low: $4,406 NZD|High: $28,224 NZD|Avg: $11,425 NZD|-4.5%
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
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 4$4,406 NZD
Retailer 8$4,705 NZD
Retailer 6$5,119 NZD
Retailer 15$5,268 NZD
Retailer 10$5,458 NZD
Retailer 22$5,465 NZD
Retailer 13$6,211 NZD
Retailer 12$6,349 NZD
Retailer 5$7,271 NZD
Retailer 19$7,326 NZD
Retailer 11$7,502 NZD
Retailer 2$8,108 NZD
Retailer 20$8,415 NZD
Retailer 7$8,499 NZD
Retailer 21$10,128 NZD
Retailer 3$11,250 NZD
Retailer 9$15,256 NZD
Retailer 14$19,030 NZD
Retailer 16$19,138 NZD
Retailer 18$25,641 NZD
Retailer 17$26,258 NZD
Brilliant Earth$26,944 NZD

31 data points across 22 retailers

21 retailers$6,211 NZD to $26,944 NZD

Retailer 1
-
$4,705 NZD
$2,647 USD
Price last confirmed 10 days ago
Retailer 2
-
$5,119 NZD
$2,880 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$5,458 NZD
$3,071 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$5,465 NZD
$3,075 USD
View
Price last confirmed 6 days ago
A
Retailer 5
-
$6,211 NZD
HK$27,300 HKD
View
Retailer 6
-
$6,349 NZD
$3,572 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$7,271 NZD
$4,091 USD
View
A
Retailer 8
-
$7,326 NZD
£3,246 GBP
View
Retailer 9
-
$7,502 NZD
$4,221 USD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$8,108 NZD
€4,345 EUR
View
Retailer 11
-
$8,415 NZD
ZAR 76,494 ZAR
View
Price last confirmed 9 days ago
Retailer 12
-
$8,499 NZD
$4,782 USD
View
Price last confirmed 7 days ago
Retailer 13
-
$10,128 NZD
A$8,767 AUD
View
Price last confirmed 11 days ago
Retailer 14
-
$11,250 NZD
$6,330 USD
View
Price last confirmed 12 days ago
Retailer 15
-
$15,256 NZD
$8,584 USD
View
Price last confirmed 9 days ago
Retailer 16
-
$19,030 NZD
$10,708 USD
View
Price last confirmed 7 days ago
B
Retailer 17
-
$19,138 NZD
A$16,566 AUD
View
B
Retailer 18
-
$25,641 NZD
$14,427 USD
View
B
Retailer 19
-
$26,258 NZD
$14,774 USD
View
Retailer 20
-
$26,944 NZD
$15,160 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
20275856A · Nov 2
$26,944 NZD
$15,160 USD
View
20 more retailers have this diamond
Prices start from $6,211 NZDSave up to $20,733 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
15.09ct Radiant
$6,211 NZD