Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG801635337

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801635337

Diamond specifications and retailer prices

From $690 CAD

$494 USD

As of October 31, 2026

Save $3,906 CAD (85%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: $4,596 CAD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG801635337 or 801635337. Listed at 25 retailers as of October 31, 2026, with prices from $690 to $4,596, a $3,906 spread on the same certified stone. Brilliant Earth lists it at $4,596. 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

3.51

Carat

Color

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.6°

Pavilion angle39.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG801635337

Dimensions15.81 × 8.02 × 4.74 mm

L/W Ratio1.97

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 LG801635337

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 31

Current: $4,596 CAD|Low: $684 CAD|High: $4,749 CAD|Avg: $1,862 CAD|-3.2%

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

November 1, 2026

Retailer 17$690 CAD

Retailer 9$712 CAD

Retailer 6$884 CAD

Retailer 10$884 CAD

Retailer 8$1,020 CAD

Retailer 2$1,027 CAD

Retailer 13$1,208 CAD

Retailer 12$1,263 CAD

Retailer 5$1,402 CAD

Retailer 14$1,676 CAD

Retailer 18$1,866 CAD

Retailer 4$1,918 CAD

Retailer 7$2,067 CAD

Retailer 16$2,503 CAD

Retailer 11$2,743 CAD

Retailer 15$2,859 CAD

Retailer 3$3,708 CAD

Brilliant Earth$4,596 CAD

38 data points across 18 retailers

25 retailers$690 CAD to $4,596 CAD

Cheapest Retailer

$690 CAD

$494 USD

Final sale: no returns

Retailer 2

$712 CAD

$510 USD

View

Retailer 3

$712 CAD

$510 USD

View

Price last confirmed 24 days ago

Retailer 4

$712 CAD

$510 USD

View

Price last confirmed 15 days ago

Retailer 5

$712 CAD

$510 USD

View

Price last confirmed 11 days ago

Retailer 6

$798 CAD

$571 USD

View

Price last confirmed 7 days ago

Retailer 7

$798 CAD

$571 USD

View

Price last confirmed 33 days ago

Retailer 8

$872 CAD

$624 USD

View

Price last confirmed 37 days ago

Retailer 9

$884 CAD

$633 USD

View

Price last confirmed 29 days ago

Retailer 10

$884 CAD

$633 USD

View

Price last confirmed 16 days ago

Retailer 11

$1,020 CAD

$730 USD

View

B+

Retailer 12

$1,027 CAD

$735 USD

View

Retailer 13

$1,208 CAD

$865 USD

View

Retailer 14

$1,263 CAD

£712 GBP

View

Retailer 15

$1,676 CAD

$1,200 USD

View

Retailer 16

$1,866 CAD

A$2,055 AUD

View

Retailer 17

$1,918 CAD

ZAR 22,184 ZAR

View

B+

Retailer 18

$2,067 CAD

$1,480 USD

View

Retailer 19

$2,324 CAD

$1,664 USD

View

Price last confirmed 32 days ago

Retailer 20

$2,324 CAD

$1,664 USD

View

Price last confirmed 7 days ago

B+

Retailer 21

$2,503 CAD

$1,792 USD

View

B+

Retailer 22

$2,743 CAD

$1,964 USD

View

B+

Retailer 23

$2,859 CAD

$2,047 USD

View

Retailer 24

$3,708 CAD

£2,090 GBP

View

Most Expensive

Brilliant Earth

20042804A · Oct 31

$4,596 CAD

$3,290 USD

View

24 more retailers have this diamond

Prices start from $690 CADSave up to $3,906 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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