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 $1,178 CAD

$842 USD

As of October 27, 2026

Save $6,309 CAD (84%) vs most expensive(unlock to see where)

29 retailers carry this diamond

Most expensive: $7,488 CAD 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 27, 2026, with prices from $1,178 to $7,488, a $6,309 spread on the same certified stone. Brilliant Earth lists it at $7,488. 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

Color

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 27

Current: $7,488 CAD|Low: $1,132 CAD|High: $7,740 CAD|Avg: $3,172 CAD|-3.3%

Brilliant Earth

Retailer 2

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Retailer 26

October 29, 2026

Retailer 3$1,178 CAD

Retailer 26$1,283 CAD

Retailer 7$1,318 CAD

Retailer 8$1,367 CAD

Retailer 12$1,367 CAD

Retailer 15$1,594 CAD

Retailer 21$1,617 CAD

Retailer 10$1,826 CAD

Retailer 22$1,959 CAD

Retailer 2$2,095 CAD

Retailer 23$2,169 CAD

Retailer 25$2,873 CAD

Retailer 5$3,001 CAD

Retailer 24$3,086 CAD

Retailer 13$3,176 CAD

Retailer 16$3,323 CAD

Retailer 17$3,775 CAD

Retailer 6$3,845 CAD

Retailer 11$4,309 CAD

Retailer 4$4,443 CAD

Retailer 9$4,540 CAD

Retailer 14$4,599 CAD

Retailer 18$4,740 CAD

Retailer 19$4,942 CAD

Retailer 20$5,155 CAD

Brilliant Earth$7,488 CAD

29 data points across 26 retailers

29 retailers$1,178 CAD to $7,488 CAD

Cheapest Retailer

$1,178 CAD

$842 USD

Retailer 2

$1,283 CAD

$917 USD

View

Retailer 3

$1,318 CAD

$942 USD

View

Final sale: no returns

Retailer 4

$1,367 CAD

$977 USD

View

Retailer 5

$1,367 CAD

$977 USD

View

Price last confirmed 12 days ago

Retailer 6

$1,594 CAD

HK$8,900 HKD

View

Retailer 7

$1,617 CAD

$1,155 USD

View

Retailer 8

$1,826 CAD

$1,305 USD

View

Retailer 9

$1,959 CAD

$1,400 USD

View

Retailer 10

$2,095 CAD

£1,179 GBP

View

Retailer 11

$2,169 CAD

€1,476 EUR

View

B+

Retailer 12

$2,873 CAD

$2,053 USD

View

B+

Retailer 13

$3,001 CAD

$2,144 USD

View

Retailer 14

$3,086 CAD

A$3,392 AUD

View

Price last confirmed 8 days ago

B+

Retailer 15

$3,176 CAD

ZAR 36,656 ZAR

View

B+

Retailer 16

$3,323 CAD

$2,374 USD

View

B+

Retailer 17

$3,349 CAD

£1,884 GBP

View

B+

Retailer 18

$3,775 CAD

£2,124 GBP

View

B+

Retailer 19

$3,845 CAD

$2,747 USD

View

B+

Retailer 20

$4,078 CAD

$2,914 USD

View

Retailer 21

$4,309 CAD

$3,079 USD

View

Retailer 22

$4,443 CAD

A$4,884 AUD

View

Price last confirmed 21 days ago

Retailer 23

$4,540 CAD

$3,244 USD

View

Retailer 24

$4,599 CAD

SGD 4,440 SGD

View

Retailer 25

$4,740 CAD

$3,387 USD

View

Retailer 26

$4,907 CAD

$3,506 USD

View

Retailer 27

$5,155 CAD

£2,900 GBP

View

Retailer 28

$5,798 CAD

$4,142 USD

View

Price last confirmed 66 days ago

Most Expensive

Brilliant Earth

12469047A · Oct 29

$7,488 CAD

$5,350 USD

View

28 more retailers have this diamond

Prices start from $1,178 CADSave up to $6,309 CAD

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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