Radiant|Lab Grown|IGI

5.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG787645258

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

Certificate IGI LG787645258

Diamond specifications and retailer prices

From $1,724 CAD

$1,232 USD

As of October 29, 2026

Save $12,510 CAD (88%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: $14,234 CAD at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 5.51ct lab-grown radiant diamond

This 5.51ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG787645258 or 787645258. Listed at 26 retailers as of October 29, 2026, with prices from $1,724 to $14,234, a $12,510 spread on the same certified stone. Brilliant Earth lists it at $14,234. 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

5.51

Carat

Color

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.8°

Pavilion angle32.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG787645258

Dimensions12.49 × 8.85 × 5.66 mm

L/W Ratio1.41

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 LG787645258

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 29

Current: $14,234 CAD|Low: $1,724 CAD|High: $16,249 CAD|Avg: $4,660 CAD|-12.4%

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

Retailer 16

Retailer 17

Retailer 18

October 29, 2026

Retailer 16$1,724 CAD

Retailer 5$1,787 CAD

Retailer 12$2,029 CAD

Retailer 4$2,284 CAD

Retailer 13$2,558 CAD

Retailer 2$2,582 CAD

Retailer 14$2,979 CAD

Retailer 15$3,619 CAD

Retailer 3$3,625 CAD

Retailer 11$3,631 CAD

Retailer 6$4,237 CAD

Retailer 7$4,927 CAD

Retailer 9$5,429 CAD

Retailer 17$5,773 CAD

Retailer 8$5,863 CAD

Retailer 10$6,248 CAD

Retailer 18$7,775 CAD

Brilliant Earth$14,234 CAD

38 data points across 18 retailers

26 retailers$1,724 CAD to $14,234 CAD

Retailer 1

$1,541 CAD

$1,101 USD

Price last confirmed 10 days ago

Retailer 2

$1,598 CAD

$1,142 USD

View

Price last confirmed 29 days ago

Retailer 3

$1,724 CAD

$1,232 USD

View

Final sale: no returns

Retailer 4

$1,740 CAD

$1,243 USD

View

Price last confirmed 32 days ago

Retailer 5

$1,787 CAD

$1,277 USD

View

Price last confirmed 12 days ago

Retailer 6

$1,787 CAD

$1,277 USD

View

Price last confirmed 10 days ago

Retailer 7

$1,829 CAD

$1,307 USD

View

Price last confirmed 32 days ago

Retailer 8

$2,029 CAD

$1,450 USD

View

Retailer 9

$2,284 CAD

$1,632 USD

View

Retailer 10

$2,558 CAD

$1,828 USD

View

Retailer 11

$2,582 CAD

£1,453 GBP

View

Retailer 12

$2,979 CAD

€2,027 EUR

View

Retailer 13

$3,477 CAD

$2,484 USD

View

Price last confirmed 29 days ago

Retailer 14

$3,619 CAD

A$3,978 AUD

View

Price last confirmed 8 days ago

B+

Retailer 15

$3,625 CAD

$2,590 USD

View

B+

Retailer 16

$3,631 CAD

ZAR 41,913 ZAR

View

B+

Retailer 17

$4,237 CAD

$3,027 USD

View

B+

Retailer 18

$4,927 CAD

£2,772 GBP

View

B+

Retailer 19

$5,174 CAD

$3,697 USD

View

Retailer 20

$5,429 CAD

$3,879 USD

View

B+

Retailer 21

$5,773 CAD

£3,248 GBP

View

Retailer 22

$5,863 CAD

$4,189 USD

View

Retailer 23

$6,248 CAD

$4,464 USD

View

Retailer 24

$7,775 CAD

$5,555 USD

View

Price last confirmed 11 days ago

Retailer 25

$13,118 CAD

£7,380 GBP

View

Price last confirmed 20 days ago

Most Expensive

Brilliant Earth

18736050A · Oct 29

$14,234 CAD

$10,170 USD

View

25 more retailers have this diamond

Prices start from $1,724 CADSave up to $12,510 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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