Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG719530985

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

Certificate IGI LG719530985

Diamond specifications and retailer prices

From $1,719 CAD

$1,228 USD

As of October 30, 2026

Save $5,512 CAD (76%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: $17,159 CAD at Brilliant Earth · As of October 18, 2026

View at Brilliant Earth

About this 3.18ct lab-grown radiant diamond

This 3.18ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG719530985 or 719530985. Listed at 23 retailers as of October 30, 2026, with a 321% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.18

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle40.2°

Pavilion angle32.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG719530985

Dimensions10.92 × 7.29 × 4.61 mm

L/W Ratio1.50

Girdle conditionFaceted

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 LG719530985

Side View

Caratlytics Score

How it works →

A+

Exceptional

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: $17,159 CAD|Low: $1,719 CAD|High: $17,159 CAD|Avg: $4,868 CAD

Brilliant Earth

Retailer 2

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Retailer 5

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Retailer 8

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Retailer 22

October 30, 2026

Retailer 12$1,719 CAD

Retailer 11$1,870 CAD

Retailer 6$1,993 CAD

Retailer 17$2,232 CAD

Retailer 9$2,346 CAD

Retailer 21$2,497 CAD

Retailer 16$2,852 CAD

Retailer 2$2,887 CAD

Retailer 19$3,168 CAD

Retailer 3$3,737 CAD

Retailer 10$3,820 CAD

Retailer 4$4,440 CAD

Retailer 22$4,510 CAD

Retailer 13$4,629 CAD

Retailer 8$4,821 CAD

Retailer 20$5,523 CAD

Retailer 18$6,413 CAD

Retailer 7$6,990 CAD

Retailer 5$7,230 CAD

Retailer 15$8,244 CAD

Retailer 14$9,917 CAD

Brilliant Earth$17,159 CAD

31 data points across 22 retailers

23 retailers$1,719 CAD to $7,230 CAD

A+

Cheapest Retailer

$1,719 CAD

$1,228 USD

Retailer 2

$1,870 CAD

$1,336 USD

View

Retailer 3

$1,993 CAD

$1,424 USD

View

Retailer 4

$2,232 CAD

$1,595 USD

View

Retailer 5

$2,346 CAD

$1,676 USD

View

Retailer 6

$2,384 CAD

$1,703 USD

View

Price last confirmed 17 days ago

Retailer 7

$2,497 CAD

$1,784 USD

View

Final sale: no returns

Retailer 8

$2,852 CAD

$2,038 USD

View

Retailer 9

$2,887 CAD

£1,624 GBP

View

Retailer 10

$3,168 CAD

€2,156 EUR

View

Retailer 11

$3,737 CAD

$2,670 USD

View

Retailer 12

$3,820 CAD

$2,729 USD

View

Retailer 13

$4,440 CAD

$3,172 USD

View

Retailer 14

$4,510 CAD

A$4,957 AUD

View

Price last confirmed 7 days ago

Retailer 15

$4,629 CAD

ZAR 53,432 ZAR

View

Retailer 16

$4,821 CAD

£2,712 GBP

View

B+

Retailer 17

$5,523 CAD

$3,946 USD

View

B+

Retailer 18

$6,413 CAD

£3,608 GBP

View

B+

Retailer 19

$6,990 CAD

$4,994 USD

View

B+

Retailer 20

$7,230 CAD

$5,166 USD

View

Retailer 21

$8,244 CAD

$5,890 USD

View

Price last confirmed 25 days ago

Retailer 22

$9,917 CAD

A$10,901 AUD

View

Price last confirmed 21 days ago

Most Expensive

Brilliant Earth

20114891A · Oct 18

$17,159 CAD

$12,260 USD

View

Price last confirmed 11 days ago

22 more retailers have this diamond

Prices start from $1,719 CADSave up to $5,512 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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