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Radiant|Lab Grown|IGI

15.22ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG720509099

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

Certificate IGI LG720509099

Diamond specifications and retailer prices

From $4,296 NZD
$2,417 USD
As of November 2, 2026
Save $19,172 NZD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $23,467 NZD at Adiamor · As of November 2, 2026
View at Adiamor

About this 15.22ct lab-grown radiant diamond

This 15.22ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720509099 or 720509099. Listed at 17 retailers as of November 2, 2026, with prices from $4,296 to $23,467, a $19,172 spread on the same certified stone. Adiamor lists it at $23,467. 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

15.22
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.6°
Pavilion angle30.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720509099
Dimensions17.47 × 12.42 × 7.77 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.47 mm12.42 mm15.22 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720509099
Side View
Table 67.0%Crown 48.6°Girdle: MED-STKPavilion 30.6°Culet: NoneDepth 62.6%

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: Nov 2
Current: $23,467 NZD|Low: $4,123 NZD|High: $23,467 NZD|Avg: $9,510 NZD
Adiamor
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
November 2, 2026
Retailer 13$4,296 NZD
Retailer 6$4,809 NZD
Retailer 14$4,984 NZD
Retailer 10$5,270 NZD
Retailer 3$6,137 NZD
Retailer 7$6,806 NZD
Retailer 12$7,470 NZD
Retailer 9$7,714 NZD
Retailer 2$7,772 NZD
Retailer 8$9,233 NZD
Retailer 11$11,028 NZD
Retailer 4$14,011 NZD
Retailer 5$17,394 NZD
Adiamor$23,467 NZD

44 data points across 14 retailers

17 retailers$4,296 NZD to $23,467 NZD

A
Cheapest Retailer
-
$4,296 NZD
$2,417 USD
A
Retailer 2
-
$4,674 NZD
$2,630 USD
View
A
Retailer 3
-
$4,809 NZD
$2,706 USD
View
Final sale: no returns
A
Retailer 4
-
$4,984 NZD
$2,804 USD
View
Retailer 5
-
$4,984 NZD
$2,804 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$5,270 NZD
$2,965 USD
View
A
Retailer 7
-
$6,137 NZD
$3,453 USD
View
A
Retailer 8
-
$6,806 NZD
£3,015 GBP
View
A
Retailer 9
-
$6,850 NZD
$3,854 USD
View
A
Retailer 10
-
$7,470 NZD
$4,203 USD
View
A
Retailer 11
-
$7,714 NZD
ZAR 70,120 ZAR
View
B+
Retailer 12
-
$7,772 NZD
$4,373 USD
View
B+
Retailer 13
-
$9,233 NZD
A$7,992 AUD
View
Retailer 14
-
$11,028 NZD
$6,205 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
$14,011 NZD
$7,884 USD
View
B
Retailer 16
-
$17,394 NZD
$9,787 USD
View
Most Expensive
B
Adiamor
D-70003992 · Nov 2
$23,467 NZD
$13,204 USD
View
16 more retailers have this diamond
Prices start from $4,296 NZDSave up to $19,172 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
15.22ct Radiant
$4,296 NZD