Radiant|Lab Grown|IGI

20.09ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG739534203

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

Certificate IGI LG739534203

Diamond specifications and retailer prices

From $13,031 NZD

$7,332 USD

As of November 2, 2026

Save $45,638 NZD (78%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $58,669 NZD at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 20.09ct lab-grown radiant diamond

This 20.09ct 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 LG739534203 or 739534203. Listed at 16 retailers as of November 2, 2026, with prices from $13,031 to $58,669, a $45,638 spread on the same certified stone. Brilliant Earth lists it at $58,669. 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

20.09

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle44°

Pavilion angle35.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG739534203

Dimensions18.31 × 13.32 × 8.66 mm

L/W Ratio1.37

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 LG739534203

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: $58,669 NZD|Low: $13,031 NZD|High: $60,801 NZD|Avg: $24,502 NZD|-3.5%

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

Retailer 14

Retailer 15

November 2, 2026

Retailer 3$13,031 NZD

Retailer 11$13,554 NZD

Retailer 5$14,675 NZD

Retailer 4$15,027 NZD

Retailer 15$15,116 NZD

Retailer 14$15,561 NZD

Retailer 7$16,586 NZD

Retailer 12$17,091 NZD

Retailer 8$17,510 NZD

Retailer 9$18,458 NZD

Retailer 2$24,648 NZD

Retailer 10$28,811 NZD

Retailer 13$42,838 NZD

Retailer 6$50,786 NZD

Brilliant Earth$58,669 NZD

42 data points across 15 retailers

16 retailers$13,031 NZD to $58,669 NZD

Cheapest Retailer

$13,031 NZD

$7,332 USD

Retailer 2

$13,554 NZD

$7,626 USD

View

B+

Retailer 3

$14,675 NZD

$8,257 USD

View

B+

Retailer 4

$15,027 NZD

$8,455 USD

View

B+

Retailer 5

$15,116 NZD

$8,505 USD

View

B+

Retailer 6

$15,561 NZD

HK$68,400 HKD

View

Retailer 7

$16,586 NZD

$9,332 USD

View

Price last confirmed 21 days ago

B+

Retailer 8

$17,091 NZD

$9,616 USD

View

Retailer 9

$17,382 NZD

$9,780 USD

View

Price last confirmed 12 days ago

B+

Retailer 10

$17,510 NZD

$9,852 USD

View

B+

Retailer 11

$18,458 NZD

£8,178 GBP

View

Retailer 12

$24,648 NZD

€13,208 EUR

View

Retailer 13

$28,811 NZD

A$24,939 AUD

View

Retailer 14

$42,838 NZD

$24,103 USD

View

Retailer 15

$50,786 NZD

$28,575 USD

View

Most Expensive

Brilliant Earth

19039056A · Nov 2

$58,669 NZD

$33,010 USD

View

15 more retailers have this diamond

Prices start from $13,031 NZDSave up to $45,638 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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$13,031 NZD