Radiant|Lab Grown|IGI

12.56ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG603334337

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

Certificate IGI LG603334337

Diamond specifications and retailer prices

From $7,180 NZD

$4,040 USD

As of November 2, 2026

Save $29,077 NZD (80%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: $36,257 NZD at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 12.56ct lab-grown radiant diamond

This 12.56ct 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 LG603334337 or 603334337. Listed at 20 retailers as of November 2, 2026, with prices from $7,180 to $36,257, a $29,077 spread on the same certified stone. Brilliant Earth lists it at $36,257. 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

12.56

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle45.3°

Pavilion angle37.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG603334337

Dimensions14.83 × 12.00 × 8.25 mm

L/W Ratio1.24

Culet sizePointed

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 LG603334337

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: $36,257 NZD|Low: $6,892 NZD|High: $36,257 NZD|Avg: $13,432 NZD

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

November 2, 2026

Retailer 11$7,180 NZD

Retailer 3$8,039 NZD

Retailer 12$8,328 NZD

Retailer 8$8,336 NZD

Retailer 13$8,508 NZD

Retailer 2$10,850 NZD

Retailer 9$11,046 NZD

Retailer 4$11,674 NZD

Retailer 7$12,891 NZD

Retailer 10$12,898 NZD

Retailer 6$15,663 NZD

Retailer 5$21,117 NZD

Brilliant Earth$36,257 NZD

42 data points across 13 retailers

20 retailers$7,180 NZD to $36,257 NZD

Cheapest Retailer

$7,180 NZD

$4,040 USD

Retailer 2

$7,525 NZD

$4,234 USD

View

Retailer 3

$8,039 NZD

$4,523 USD

View

Final sale: no returns

B+

Retailer 4

$8,328 NZD

$4,686 USD

View

Retailer 5

$8,328 NZD

$4,686 USD

View

Price last confirmed 21 days ago

B+

Retailer 6

$8,336 NZD

$4,690 USD

View

B+

Retailer 7

$8,508 NZD

$4,787 USD

View

B+

Retailer 8

$9,828 NZD

HK$43,200 HKD

View

B+

Retailer 9

$10,408 NZD

$5,856 USD

View

B+

Retailer 10

$10,850 NZD

£4,807 GBP

View

B+

Retailer 11

$11,046 NZD

$6,215 USD

View

B+

Retailer 12

$11,674 NZD

£5,172 GBP

View

B+

Retailer 13

$12,891 NZD

ZAR 117,171 ZAR

View

B+

Retailer 14

$12,898 NZD

$7,257 USD

View

Retailer 15

$15,663 NZD

$8,813 USD

View

Retailer 16

$17,441 NZD

$9,813 USD

View

Retailer 17

$21,117 NZD

$11,882 USD

View

Price last confirmed 20 days ago

Retailer 18

$23,132 NZD

$13,015 USD

View

Retailer 19

$29,567 NZD

$16,636 USD

View

Most Expensive

Brilliant Earth

10597375A · Nov 2

$36,257 NZD

$20,400 USD

View

19 more retailers have this diamond

Prices start from $7,180 NZDSave up to $29,077 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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