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 $1,076 SGD

$842 USD

As of October 30, 2026

Save $5,763 SGD (84%) vs most expensive(unlock to see where)

29 retailers carry this diamond

Most expensive: $6,839 SGD at Brilliant Earth · As of October 29, 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 29 retailers as of October 29, 2026, with prices from $1,076 to $6,839, a $5,763 spread on the same certified stone. Brilliant Earth lists it at $6,839. 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

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30

Current: $6,839 SGD|Low: $1,034 SGD|High: $7,070 SGD|Avg: $2,899 SGD|-3.3%

Brilliant Earth

Retailer 2

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Retailer 26

October 30, 2026

Retailer 3$1,076 SGD

Retailer 26$1,172 SGD

Retailer 7$1,204 SGD

Retailer 8$1,249 SGD

Retailer 12$1,249 SGD

Retailer 15$1,456 SGD

Retailer 21$1,477 SGD

Retailer 10$1,668 SGD

Retailer 22$1,790 SGD

Retailer 2$1,920 SGD

Retailer 23$1,981 SGD

Retailer 25$2,625 SGD

Retailer 5$2,741 SGD

Retailer 24$2,819 SGD

Retailer 13$2,901 SGD

Retailer 16$3,035 SGD

Retailer 17$3,448 SGD

Retailer 6$3,512 SGD

Retailer 11$3,936 SGD

Retailer 4$4,058 SGD

Retailer 9$4,147 SGD

Retailer 14$4,200 SGD

Retailer 18$4,329 SGD

Retailer 19$4,514 SGD

Retailer 20$4,708 SGD

Brilliant Earth$6,839 SGD

29 data points across 26 retailers

29 retailers$1,076 SGD to $6,839 SGD

Cheapest Retailer

$1,076 SGD

$842 USD

Retailer 2

$1,172 SGD

$917 USD

View

Retailer 3

$1,204 SGD

$942 USD

View

Final sale: no returns

Retailer 4

$1,249 SGD

$977 USD

View

Retailer 5

$1,249 SGD

$977 USD

View

Price last confirmed 13 days ago

Retailer 6

$1,456 SGD

HK$8,900 HKD

View

Retailer 7

$1,477 SGD

$1,155 USD

View

Retailer 8

$1,668 SGD

$1,305 USD

View

Retailer 9

$1,790 SGD

$1,400 USD

View

Retailer 10

$1,920 SGD

£1,182 GBP

View

Retailer 11

$1,981 SGD

€1,476 EUR

View

Price last confirmed 7 days ago

B+

Retailer 12

$2,625 SGD

$2,053 USD

View

B+

Retailer 13

$2,741 SGD

$2,144 USD

View

Retailer 14

$2,819 SGD

A$3,392 AUD

View

Price last confirmed 9 days ago

B+

Retailer 15

$2,901 SGD

ZAR 36,656 ZAR

View

B+

Retailer 16

$3,035 SGD

$2,374 USD

View

B+

Retailer 17

$3,059 SGD

£1,884 GBP

View

B+

Retailer 18

$3,448 SGD

£2,124 GBP

View

B+

Retailer 19

$3,512 SGD

$2,747 USD

View

B+

Retailer 20

$3,725 SGD

$2,914 USD

View

Retailer 21

$3,936 SGD

$3,079 USD

View

Retailer 22

$4,058 SGD

A$4,884 AUD

View

Price last confirmed 22 days ago

Retailer 23

$4,147 SGD

$3,244 USD

View

Retailer 24

$4,200 SGD

View

Retailer 25

$4,329 SGD

$3,387 USD

View

Retailer 26

$4,482 SGD

$3,506 USD

View

Retailer 27

$4,708 SGD

£2,900 GBP

View

Retailer 28

$5,296 SGD

$4,142 USD

View

Price last confirmed 66 days ago

Most Expensive

Brilliant Earth

12469047A · Oct 29

$6,839 SGD

$5,350 USD

View

28 more retailers have this diamond

Prices start from $1,076 SGDSave up to $5,763 SGD

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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