Radiant|Lab Grown|IGI

15.56ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG617483569

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

Certificate IGI LG617483569

Diamond specifications and retailer prices

From $5,058 NZD

$2,846 USD

As of November 2, 2026

Save $15,387 NZD (75%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $20,445 NZD at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 15.56ct lab-grown radiant diamond

This 15.56ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617483569 or 617483569. Listed at 16 retailers as of October 31, 2026, with prices from $5,058 to $20,445, a $15,387 spread on the same certified stone. Taylor and Hart lists it at $20,445. 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

15.56

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.8°

Pavilion angle36.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG617483569

Dimensions16.35 × 11.36 × 7.63 mm

L/W Ratio1.44

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 LG617483569

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: Nov 2

Current: $7,591 NZD|Low: $4,856 NZD|High: $41,127 NZD|Avg: $11,608 NZD|-11.7%

Retailer 1

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

Taylor and Hart

November 2, 2026

Retailer 2$5,058 NZD

Retailer 16$5,504 NZD

Retailer 4$5,662 NZD

Retailer 6$5,867 NZD

Retailer 13$5,867 NZD

Retailer 17$5,874 NZD

Retailer 7$6,882 NZD

Retailer 1$7,591 NZD

Retailer 14$8,065 NZD

Retailer 12$9,084 NZD

Retailer 3$9,126 NZD

Retailer 9$9,180 NZD

Retailer 10$9,312 NZD

Retailer 11$10,871 NZD

Retailer 5$16,332 NZD

Retailer 15$20,075 NZD

Taylor and Hart$20,445 NZD

Retailer 8$41,127 NZD

34 data points across 18 retailers

16 retailers$5,058 NZD to $20,445 NZD

Cheapest Retailer

$5,058 NZD

$2,846 USD

Retailer 2

$5,504 NZD

$3,097 USD

View

Retailer 3

$5,662 NZD

$3,186 USD

View

Final sale: no returns

Retailer 4

$5,867 NZD

$3,301 USD

View

Retailer 5

$5,867 NZD

$3,301 USD

View

Price last confirmed 21 days ago

Retailer 6

$5,874 NZD

$3,305 USD

View

B+

Retailer 7

$6,882 NZD

$3,872 USD

View

B+

Retailer 8

$7,591 NZD

$4,271 USD

View

B+

Retailer 9

$8,065 NZD

$4,538 USD

View

B+

Retailer 10

$9,084 NZD

ZAR 82,569 ZAR

View

B+

Retailer 11

$9,126 NZD

$5,135 USD

View

B+

Retailer 12

$9,312 NZD

€4,990 EUR

View

B+

Retailer 13

$10,871 NZD

A$9,410 AUD

View

Retailer 14

$16,332 NZD

$9,189 USD

View

Retailer 15

$20,075 NZD

$11,295 USD

View

Most Expensive

Taylor and Hart

L7V1QYQ · Oct 31

$20,445 NZD

$11,504 USD

View

15 more retailers have this diamond

Prices start from $5,058 NZDSave up to $15,387 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.

Similar diamonds

15.56ct Radiant

$5,058 NZD