Marquise|Lab Grown|IGI

1.85ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG821658092

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821658092

Diamond specifications and retailer prices

From £216 GBP

$288 USD

As of October 23, 2026

Save £1,308 GBP (86%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: £1,524 GBP at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 1.85ct lab-grown marquise diamond

This 1.85ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821658092 or 821658092. Listed at 26 retailers as of October 23, 2026, with prices from £216 to £1,524, a £1,308 spread on the same certified stone. Brilliant Earth lists it at £1,524. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.85

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.4°

Pavilion angle41.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG821658092

Dimensions12.31 × 6.59 × 4.14 mm

L/W Ratio1.87

Girdle conditionFaceted

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG821658092

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 23

Current: £1,524 GBP|Low: £212 GBP|High: £1,735 GBP|Avg: £652 GBP|-12.1%

Brilliant Earth

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October 27, 2026

Retailer 4£216 GBP

Retailer 17£242 GBP

Retailer 23£251 GBP

Retailer 5£268 GBP

Retailer 22£298 GBP

Retailer 13£314 GBP

Retailer 24£387 GBP

Retailer 2£420 GBP

Retailer 7£440 GBP

Retailer 21£453 GBP

Retailer 18£471 GBP

Retailer 9£474 GBP

Retailer 11£559 GBP

Retailer 20£629 GBP

Retailer 6£688 GBP

Retailer 14£860 GBP

Retailer 3£861 GBP

Retailer 16£898 GBP

Retailer 12£1,030 GBP

Retailer 15£1,041 GBP

Retailer 19£1,075 GBP

Retailer 10£1,107 GBP

Retailer 8£1,120 GBP

Brilliant Earth£1,524 GBP

25 data points across 24 retailers

26 retailers£216 GBP to £1,524 GBP

Cheapest Retailer

£216 GBP

$288 USD

Retailer 2

£242 GBP

$322 USD

View

Final sale: no returns

Retailer 3

£251 GBP

$334 USD

View

Retailer 4

£268 GBP

$357 USD

View

Retailer 5

£298 GBP

HK$3,100 HKD

View

Retailer 6

£314 GBP

View

Retailer 7

£387 GBP

$515 USD

View

Retailer 8

£420 GBP

€533 EUR

View

Retailer 9

£440 GBP

$586 USD

View

Retailer 10

£453 GBP

ZAR 9,748 ZAR

View

Retailer 11

£471 GBP

View

Retailer 12

£474 GBP

$631 USD

View

Retailer 13

£497 GBP

A$1,018 AUD

View

Retailer 14

£559 GBP

$744 USD

View

B+

Retailer 15

£629 GBP

A$1,289 AUD

View

B+

Retailer 16

£688 GBP

$916 USD

View

B+

Retailer 17

£860 GBP

SGD 1,548 SGD

View

B+

Retailer 18

£861 GBP

$1,147 USD

View

B+

Retailer 19

£898 GBP

$1,196 USD

View

B+

Retailer 20

£902 GBP

A$1,848 AUD

View

Price last confirmed 28 days ago

Retailer 21

£1,030 GBP

$1,372 USD

View

Retailer 22

£1,041 GBP

View

Price last confirmed 13 days ago

Retailer 23

£1,075 GBP

View

Retailer 24

£1,107 GBP

$1,474 USD

View

Retailer 25

£1,120 GBP

$1,491 USD

View

Most Expensive

Brilliant Earth

20782702A · Oct 28

£1,524 GBP

$2,030 USD

View

25 more retailers have this diamond

Prices start from £216 GBPSave up to £1,308 GBP

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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