Round|Lab Grown|IGI

4.18ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG683520148

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683520148

Diamond specifications and retailer prices

From $2,576 CAD

£1,452 GBP

As of October 30, 2026

Save $19,509 CAD (88%) vs most expensive(unlock to see where)

28 retailers carry this diamond

Most expensive: $22,085 CAD at Brilliant Earth · As of October 24, 2026

View at Brilliant Earth

About this 4.18ct lab-grown round diamond

This 4.18ct lab-grown round 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 LG683520148 or 683520148. Listed at 28 retailers as of October 24, 2026, with prices from $2,576 to $22,085, a $19,509 spread on the same certified stone. Brilliant Earth lists it at $22,085. 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

4.18

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.6°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG683520148

Dimensions10.53 × 10.48 × 6.25 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG683520148

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: $22,085 CAD|Low: $2,567 CAD|High: $22,085 CAD|Avg: $6,681 CAD

Brilliant Earth

Retailer 2

Retailer 3

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Retailer 22

October 30, 2026

Retailer 2$2,576 CAD

Retailer 14$2,862 CAD

Retailer 6$2,904 CAD

Retailer 8$3,008 CAD

Retailer 15$3,114 CAD

Retailer 21$3,322 CAD

Retailer 19$3,325 CAD

Retailer 5$3,934 CAD

Retailer 13$4,550 CAD

Retailer 20$4,715 CAD

Retailer 4$4,998 CAD

Retailer 3$5,060 CAD

Retailer 17$6,501 CAD

Retailer 16$7,067 CAD

Retailer 12$7,125 CAD

Retailer 10$8,105 CAD

Retailer 18$8,451 CAD

Retailer 9$8,528 CAD

Retailer 7$9,495 CAD

Retailer 11$11,382 CAD

Retailer 22$17,838 CAD

Brilliant Earth$22,085 CAD

28 data points across 22 retailers

28 retailers$2,576 CAD to $22,085 CAD

A+

Cheapest Retailer

$2,576 CAD

£1,452 GBP

Retailer 2

$2,862 CAD

$2,049 USD

View

Price last confirmed 7 days ago

Retailer 3

$2,904 CAD

$2,079 USD

View

Final sale: no returns

Retailer 4

$3,008 CAD

$2,153 USD

View

Retailer 5

$3,114 CAD

$2,229 USD

View

Price last confirmed 10 days ago

Retailer 6

$3,320 CAD

$2,377 USD

View

Price last confirmed 19 days ago

Retailer 7

$3,322 CAD

$2,378 USD

View

Retailer 8

$3,325 CAD

$2,380 USD

View

Retailer 9

$3,934 CAD

HK$22,000 HKD

View

Retailer 10

$4,550 CAD

£2,565 GBP

View

Retailer 11

$4,564 CAD

$3,267 USD

View

Price last confirmed 9 days ago

Retailer 12

$4,715 CAD

$3,375 USD

View

Retailer 13

$4,998 CAD

$3,578 USD

View

Retailer 14

$5,060 CAD

$3,622 USD

View

Retailer 15

$6,501 CAD

€4,432 EUR

View

Retailer 16

$7,067 CAD

ZAR 81,735 ZAR

View

Retailer 17

$7,125 CAD

A$7,847 AUD

View

Price last confirmed 8 days ago

Retailer 18

$8,105 CAD

$5,802 USD

View

B+

Retailer 19

$8,451 CAD

$6,050 USD

View

Retailer 20

$8,528 CAD

$6,105 USD

View

B+

Retailer 21

$9,341 CAD

$6,687 USD

View

B+

Retailer 22

$9,495 CAD

£5,352 GBP

View

B+

Retailer 23

$11,382 CAD

SGD 11,011 SGD

View

B+

Retailer 24

$11,615 CAD

$8,315 USD

View

Retailer 25

$13,164 CAD

£7,420 GBP

View

Price last confirmed 21 days ago

Retailer 26

$17,838 CAD

$12,770 USD

View

Retailer 27

$21,959 CAD

$15,720 USD

View

Most Expensive

Brilliant Earth

13152316A · Oct 24

$22,085 CAD

$15,810 USD

View

27 more retailers have this diamond

Prices start from $2,576 CADSave up to $19,509 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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