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 $629 AUD

$441 USD

As of November 2, 2026

Save $4,065 AUD (87%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: $4,695 AUD at Brilliant Earth · As of November 2, 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 November 2, 2026, with prices from $629 to $4,695, a $4,065 spread on the same certified stone. Brilliant Earth lists it at $4,695. 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

Colour

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: Nov 2

Current: $4,695 AUD|Low: $629 AUD|High: $4,851 AUD|Avg: $1,897 AUD|-3.2%

Brilliant Earth

Retailer 2

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Retailer 18

November 2, 2026

Retailer 12$629 AUD

Retailer 4$705 AUD

Retailer 8$903 AUD

Retailer 10$903 AUD

Retailer 9$1,042 AUD

Retailer 14$1,049 AUD

Retailer 16$1,234 AUD

Retailer 13$1,280 AUD

Retailer 7$1,432 AUD

Retailer 11$1,701 AUD

Retailer 17$1,712 AUD

Retailer 5$1,906 AUD

Retailer 2$1,912 AUD

Retailer 3$2,557 AUD

Retailer 15$2,802 AUD

Retailer 18$2,921 AUD

Retailer 6$3,787 AUD

Brilliant Earth$4,695 AUD

38 data points across 18 retailers

25 retailers$629 AUD to $4,695 AUD

Cheapest Retailer

$629 AUD

$441 USD

Retailer 2

$705 AUD

$494 USD

View

Final sale: no returns

Retailer 3

$728 AUD

$510 USD

View

Price last confirmed 25 days ago

Retailer 4

$728 AUD

$510 USD

View

Price last confirmed 16 days ago

Retailer 5

$728 AUD

$510 USD

View

Price last confirmed 12 days ago

Retailer 6

$815 AUD

$571 USD

View

Price last confirmed 8 days ago

Retailer 7

$815 AUD

$571 USD

View

Price last confirmed 34 days ago

Retailer 8

$890 AUD

$624 USD

View

Price last confirmed 38 days ago

Retailer 9

$903 AUD

$633 USD

View

Price last confirmed 30 days ago

Retailer 10

$903 AUD

$633 USD

View

Price last confirmed 17 days ago

Retailer 11

$1,042 AUD

$730 USD

View

B+

Retailer 12

$1,049 AUD

$735 USD

View

Retailer 13

$1,234 AUD

$865 USD

View

Retailer 14

$1,280 AUD

£706 GBP

View

Retailer 15

$1,701 AUD

ZAR 19,257 ZAR

View

Retailer 16

$1,712 AUD

$1,200 USD

View

Retailer 17

$1,906 AUD

View

Retailer 18

$1,912 AUD

$1,340 USD

View

Retailer 19

$2,374 AUD

$1,664 USD

View

Price last confirmed 33 days ago

Retailer 20

$2,374 AUD

$1,664 USD

View

Price last confirmed 8 days ago

B+

Retailer 21

$2,557 AUD

$1,792 USD

View

B+

Retailer 22

$2,802 AUD

$1,964 USD

View

B+

Retailer 23

$2,921 AUD

$2,047 USD

View

Retailer 24

$3,787 AUD

£2,090 GBP

View

Most Expensive

Brilliant Earth

20042804A · Nov 2

$4,695 AUD

$3,290 USD

View

24 more retailers have this diamond

Prices start from $629 AUDSave up to $4,065 AUD

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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