Radiant|Lab Grown|IGI

3.91ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG669435205

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

Certificate IGI LG669435205

Diamond specifications and retailer prices

From $1,494 NZD

$842 USD

As of October 30, 2026

Save $7,715 NZD (84%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: $9,209 NZD at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 3.91ct lab-grown radiant diamond

This 3.91ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG669435205 or 669435205. Listed at 30 retailers as of October 30, 2026, with prices from $1,494 to $9,209, a $7,715 spread on the same certified stone. Brilliant Earth lists it at $9,209. 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

3.91

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle50.7°

Pavilion angle29.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG669435205

Dimensions10.23 × 7.20 × 5.17 mm

L/W Ratio1.42

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG669435205

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: Oct 30

Current: $9,209 NZD|Low: $1,435 NZD|High: $9,812 NZD|Avg: $3,921 NZD|-6.1%

Brilliant Earth

Retailer 2

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Retailer 25

October 31, 2026

Retailer 3$1,494 NZD

Retailer 25$1,627 NZD

Retailer 7$1,671 NZD

Retailer 8$1,733 NZD

Retailer 12$1,733 NZD

Retailer 15$2,021 NZD

Retailer 21$2,049 NZD

Retailer 10$2,315 NZD

Retailer 22$2,484 NZD

Retailer 2$2,642 NZD

Retailer 23$2,750 NZD

Retailer 13$3,545 NZD

Retailer 5$3,804 NZD

Retailer 24$3,912 NZD

Retailer 19$4,026 NZD

Retailer 16$4,212 NZD

Retailer 17$4,786 NZD

Retailer 6$4,874 NZD

Retailer 11$5,463 NZD

Retailer 4$5,633 NZD

Retailer 9$5,755 NZD

Retailer 14$5,830 NZD

Retailer 18$6,009 NZD

Retailer 20$6,535 NZD

Brilliant Earth$9,209 NZD

30 data points across 25 retailers

30 retailers$1,494 NZD to $9,209 NZD

Cheapest Retailer

$1,494 NZD

$842 USD

Retailer 2

$1,627 NZD

$917 USD

View

Retailer 3

$1,671 NZD

$942 USD

View

Final sale: no returns

Retailer 4

$1,733 NZD

$977 USD

View

Retailer 5

$1,733 NZD

$977 USD

View

Price last confirmed 14 days ago

Retailer 6

$2,021 NZD

HK$8,900 HKD

View

Retailer 7

$2,049 NZD

$1,155 USD

View

Retailer 8

$2,315 NZD

$1,305 USD

View

Retailer 9

$2,484 NZD

$1,400 USD

View

Retailer 10

$2,642 NZD

£1,173 GBP

View

Retailer 11

$2,750 NZD

€1,476 EUR

View

Price last confirmed 7 days ago

B+

Retailer 12

$3,545 NZD

$1,998 USD

View

B+

Retailer 13

$3,643 NZD

$2,053 USD

View

B+

Retailer 14

$3,804 NZD

$2,144 USD

View

Retailer 15

$3,912 NZD

A$3,392 AUD

View

Price last confirmed 9 days ago

B+

Retailer 16

$4,026 NZD

ZAR 36,656 ZAR

View

B+

Retailer 17

$4,212 NZD

$2,374 USD

View

B+

Retailer 18

$4,246 NZD

£1,884 GBP

View

B+

Retailer 19

$4,786 NZD

£2,124 GBP

View

B+

Retailer 20

$4,874 NZD

$2,747 USD

View

B+

Retailer 21

$5,170 NZD

$2,914 USD

View

Retailer 22

$5,463 NZD

$3,079 USD

View

Retailer 23

$5,633 NZD

A$4,884 AUD

View

Price last confirmed 23 days ago

Retailer 24

$5,755 NZD

$3,244 USD

View

Retailer 25

$5,830 NZD

SGD 4,440 SGD

View

Retailer 26

$6,009 NZD

$3,387 USD

View

Retailer 27

$6,221 NZD

$3,506 USD

View

Retailer 28

$6,535 NZD

£2,900 GBP

View

Retailer 29

$7,350 NZD

$4,142 USD

View

Price last confirmed 67 days ago

Most Expensive

Brilliant Earth

12469047A · Oct 30

$9,209 NZD

$5,190 USD

View

29 more retailers have this diamond

Prices start from $1,494 NZDSave up to $7,715 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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