Radiant|Lab Grown|IGI

6.39ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG617447501

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

Certificate IGI LG617447501

Diamond specifications and retailer prices

From $1,655 NZD

$931 USD

As of November 1, 2026

Save $12,226 NZD (88%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: $13,881 NZD at Kay Jewelers · As of November 2, 2026

View at Kay Jewelers

About this 6.39ct lab-grown radiant diamond

This 6.39ct 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 LG617447501 or 617447501. Listed at 12 retailers as of November 1, 2026, with prices from $1,655 to $13,881, a $12,226 spread on the same certified stone. Kay Jewelers lists it at $13,881. 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

6.39

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle44.3°

Pavilion angle34.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG617447501

Dimensions13.31 × 8.97 × 6.02 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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG617447501

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 1

Current: $13,881 NZD|Low: $1,520 NZD|High: $15,018 NZD|Avg: $6,527 NZD

Kay Jewelers

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

November 1, 2026

Retailer 14$1,520 NZD

Retailer 11$1,655 NZD

Retailer 16$2,835 NZD

Retailer 7$3,038 NZD

Retailer 5$3,119 NZD

Retailer 9$3,604 NZD

Retailer 12$4,054 NZD

Retailer 10$4,061 NZD

Retailer 3$4,786 NZD

Retailer 15$5,474 NZD

Retailer 2$6,602 NZD

Retailer 4$7,703 NZD

Retailer 8$9,572 NZD

Retailer 6$11,570 NZD

Retailer 13$13,507 NZD

Kay Jewelers$13,881 NZD

21 data points across 16 retailers

12 retailers$1,655 NZD to $13,881 NZD

Retailer 1

$1,520 NZD

$855 USD

Price last confirmed 12 days ago

Retailer 2

$1,655 NZD

$931 USD

View

Price last confirmed 13 days ago

Retailer 3

$1,655 NZD

$931 USD

View

B+

Retailer 4

$2,835 NZD

$1,595 USD

View

Retailer 5

$3,604 NZD

A$3,120 AUD

View

Price last confirmed 12 days ago

B+

Retailer 6

$4,054 NZD

$2,281 USD

View

Retailer 7

$5,474 NZD

$3,080 USD

View

Price last confirmed 14 days ago

B+

Retailer 8

$5,474 NZD

$3,080 USD

View

B+

Retailer 9

$6,602 NZD

£2,925 GBP

View

Retailer 10

$11,570 NZD

$6,510 USD

View

Retailer 11

$13,507 NZD

$7,600 USD

View

Most Expensive

Kay Jewelers

250040386 · Nov 2

$13,881 NZD

$7,810 USD

View

11 more retailers have this diamond

Prices start from $1,655 NZDSave up to $12,226 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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6.39ct Radiant

$1,655 NZD