Radiant|Lab Grown|IGI

15.51ct G VS2 Radiant Lab Grown Diamond

ID • G/VS2 • IGI LG617499488

Shape and cutting style on the report: Cut cornered rectangular mixed cut

Certificate IGI LG617499488

Diamond specifications and retailer prices

From $5,041 NZD

$2,841 USD

As of October 30, 2026

Save $18,921 NZD (79%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $23,962 NZD at Adiamor · As of November 2, 2026

View at Adiamor

About this 15.51ct lab-grown radiant diamond

This 15.51ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617499488 or 617499488. Listed at 16 retailers as of October 30, 2026, with prices from $5,041 to $23,962, a $18,921 spread on the same certified stone. Adiamor lists it at $23,962. 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

15.51

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle27.3°

Pavilion angle32.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG617499488

Dimensions16.36 × 11.67 × 7.63 mm

L/W Ratio1.40

Culet sizeLong

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG617499488

Side View

Caratlytics Score

How it works →

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 30

Current: $23,962 NZD|Low: $4,839 NZD|High: $24,065 NZD|Avg: $7,947 NZD|-0.4%

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 12$5,041 NZD

Retailer 11$5,484 NZD

Retailer 3$5,644 NZD

Retailer 5$5,848 NZD

Retailer 9$5,848 NZD

Retailer 6$6,856 NZD

Retailer 8$7,470 NZD

Retailer 13$7,658 NZD

Retailer 2$7,835 NZD

Retailer 10$8,038 NZD

Retailer 14$9,095 NZD

Retailer 7$9,268 NZD

Retailer 4$16,278 NZD

Adiamor$23,962 NZD

42 data points across 14 retailers

16 retailers$5,041 NZD to $23,962 NZD

Cheapest Retailer

$5,041 NZD

$2,841 USD

Retailer 2

$5,484 NZD

$3,091 USD

View

Retailer 3

$5,644 NZD

$3,181 USD

View

Final sale: no returns

Retailer 4

$5,848 NZD

$3,296 USD

View

Retailer 5

$5,848 NZD

$3,296 USD

View

Price last confirmed 20 days ago

Retailer 6

$6,856 NZD

$3,864 USD

View

Retailer 7

$7,470 NZD

$4,210 USD

View

Retailer 8

$7,658 NZD

$4,316 USD

View

Retailer 9

$7,835 NZD

£3,477 GBP

View

Retailer 10

$8,038 NZD

$4,530 USD

View

B+

Retailer 11

$9,095 NZD

$5,126 USD

View

B+

Retailer 12

$9,268 NZD

€4,975 EUR

View

Retailer 13

$12,341 NZD

$6,956 USD

View

Price last confirmed 40 days ago

Retailer 14

$16,278 NZD

$9,174 USD

View

Retailer 15

$20,376 NZD

$11,484 USD

View

Most Expensive

Adiamor

D-69792673 · Nov 2

$23,962 NZD

$13,505 USD

View

15 more retailers have this diamond

Prices start from $5,041 NZDSave up to $18,921 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.

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15.51ct Radiant

$5,041 NZD