Radiant|Lab Grown|IGI

6.18ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG626448502

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

Certificate IGI LG626448502

Diamond specifications and retailer prices

From $1,493 NZD

$840 USD

As of November 2, 2026

Save $8,033 NZD (84%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: $9,526 NZD at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 6.18ct lab-grown radiant diamond

This 6.18ct 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 LG626448502 or 626448502. Listed at 24 retailers as of November 2, 2026, with prices from $1,493 to $9,526, a $8,033 spread on the same certified stone. Brilliant Earth lists it at $9,526. 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

6.18

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle44°

Pavilion angle34.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG626448502

Dimensions13.39 × 9.04 × 5.95 mm

L/W Ratio1.48

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 LG626448502

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: $9,526 NZD|Low: $1,433 NZD|High: $9,526 NZD|Avg: $3,352 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

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Retailer 15

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Retailer 19

November 2, 2026

Retailer 5$1,493 NZD

Retailer 9$1,623 NZD

Retailer 6$1,669 NZD

Retailer 7$1,731 NZD

Retailer 10$1,731 NZD

Retailer 18$1,863 NZD

Retailer 19$2,044 NZD

Retailer 17$2,479 NZD

Retailer 11$2,607 NZD

Retailer 13$2,626 NZD

Retailer 2$2,659 NZD

Retailer 15$3,207 NZD

Retailer 16$3,349 NZD

Retailer 14$3,539 NZD

Retailer 8$4,866 NZD

Retailer 4$5,415 NZD

Retailer 3$5,481 NZD

Retailer 12$6,487 NZD

Brilliant Earth$9,526 NZD

44 data points across 19 retailers

24 retailers$1,493 NZD to $9,526 NZD

Cheapest Retailer

$1,493 NZD

$840 USD

Retailer 2

$1,623 NZD

$913 USD

View

Retailer 3

$1,669 NZD

$939 USD

View

Final sale: no returns

Retailer 4

$1,731 NZD

$974 USD

View

Retailer 5

$1,731 NZD

$974 USD

View

Price last confirmed 16 days ago

Retailer 6

$1,863 NZD

£825 GBP

View

Price last confirmed 17 days ago

Retailer 7

$2,044 NZD

$1,150 USD

View

B+

Retailer 8

$2,479 NZD

$1,395 USD

View

Retailer 9

$2,607 NZD

$1,467 USD

View

Retailer 10

$2,626 NZD

€1,407 EUR

View

Retailer 11

$2,659 NZD

£1,178 GBP

View

Retailer 12

$3,207 NZD

A$2,776 AUD

View

Retailer 13

$3,349 NZD

ZAR 30,441 ZAR

View

Retailer 14

$3,539 NZD

$1,991 USD

View

B+

Retailer 15

$4,166 NZD

$2,344 USD

View

B+

Retailer 16

$4,205 NZD

$2,366 USD

View

B+

Retailer 17

$4,794 NZD

£2,124 GBP

View

B+

Retailer 18

$4,866 NZD

$2,738 USD

View

B+

Retailer 19

$5,415 NZD

$3,047 USD

View

B+

Retailer 20

$5,481 NZD

$3,084 USD

View

B+

Retailer 21

$5,998 NZD

$3,375 USD

View

B+

Retailer 22

$6,487 NZD

£2,874 GBP

View

Retailer 23

$8,279 NZD

$4,658 USD

View

Most Expensive

Brilliant Earth

9517148A · Nov 2

$9,526 NZD

$5,360 USD

View

23 more retailers have this diamond

Prices start from $1,493 NZDSave up to $8,033 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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6.18ct Radiant

$1,493 NZD