Radiant|Lab Grown|IGI

12.60ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG717520590

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

Certificate IGI LG717520590

Diamond specifications and retailer prices

From $6,643 NZD

$3,744 USD

As of October 29, 2026

Save $16,899 NZD (72%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: $23,542 NZD at Taylor and Hart · As of October 27, 2026

View at Taylor and Hart

About this 12.6ct lab-grown radiant diamond

This 12.6ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG717520590 or 717520590. Listed at 15 retailers as of October 27, 2026, with prices from $6,643 to $23,542, a $16,899 spread on the same certified stone. Taylor and Hart lists it at $23,542. 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

12.60

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38.3°

Pavilion angle30.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG717520590

Dimensions17.13 × 11.55 × 7.25 mm

L/W Ratio1.48

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG717520590

Side View

Caratlytics Score

How it works →

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: Oct 29

Current: $10,650 NZD|Low: $4,721 NZD|High: $23,542 NZD|Avg: $12,790 NZD|+4.1%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Taylor and Hart

October 29, 2026

Retailer 3$6,643 NZD

Retailer 4$6,792 NZD

Retailer 5$9,145 NZD

Retailer 9$9,491 NZD

Retailer 6$9,493 NZD

Retailer 12$10,248 NZD

Retailer 1$10,650 NZD

Retailer 2$10,680 NZD

Retailer 7$12,844 NZD

Retailer 10$17,164 NZD

Retailer 11$17,227 NZD

Retailer 8$19,794 NZD

Taylor and Hart$23,542 NZD

41 data points across 13 retailers

15 retailers$6,643 NZD to $23,542 NZD

Retailer 1

$5,621 NZD

$3,168 USD

Price last confirmed 27 days ago

Retailer 2

$6,643 NZD

$3,744 USD

View

Final sale: no returns

Retailer 3

$6,792 NZD

$3,828 USD

View

Price last confirmed 27 days ago

Retailer 4

$6,792 NZD

$3,828 USD

View

Price last confirmed 19 days ago

Retailer 5

$9,145 NZD

£4,058 GBP

View

Retailer 6

$9,491 NZD

$5,349 USD

View

Retailer 7

$9,493 NZD

$5,350 USD

View

B+

Retailer 8

$10,248 NZD

£4,548 GBP

View

B+

Retailer 9

$10,650 NZD

ZAR 96,972 ZAR

View

Retailer 10

$10,680 NZD

$6,019 USD

View

Retailer 11

$12,844 NZD

A$11,137 AUD

View

Price last confirmed 9 days ago

Retailer 12

$17,164 NZD

$9,674 USD

View

B+

Retailer 13

$17,227 NZD

$9,709 USD

View

Retailer 14

$19,794 NZD

$11,156 USD

View

Most Expensive

Taylor and Hart

W8G0RC3 · Oct 27

$23,542 NZD

$13,268 USD

View

14 more retailers have this diamond

Prices start from $6,643 NZDSave up to $16,899 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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12.60ct Radiant

$6,643 NZD