Marquise|Lab Grown|IGI

1.03ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG700512522

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG700512522

Diamond specifications and retailer prices

From £184 GBP

$247 USD

As of November 3, 2026

Save £1,344 GBP (88%) vs most expensive(unlock to see where)

29 retailers carry this diamond

Most expensive: £1,529 GBP at Do Amore Diamonds · As of November 2, 2026

View at Do Amore Diamonds

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG700512522 or 700512522. Listed at 29 retailers as of November 2, 2026, with prices from £184 to £1,529, a £1,344 spread on the same certified stone. Do Amore Diamonds lists it at £1,529. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.4°

Pavilion angle40.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG700512522

Dimensions10.47 × 5.36 × 3.30 mm

L/W Ratio1.95

Girdle conditionFaceted

Culet sizePointed

Cert comments

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 LG700512522

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 3

Current: £1,529 GBP|Low: £159 GBP|High: £1,849 GBP|Avg: £619 GBP

Do Amore Diamonds

Retailer 2

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November 3, 2026

Retailer 11£159 GBP

Retailer 23£184 GBP

Retailer 8£197 GBP

Retailer 22£305 GBP

Retailer 7£307 GBP

Retailer 10£333 GBP

Retailer 16£347 GBP

Retailer 21£366 GBP

Retailer 5£373 GBP

Retailer 17£376 GBP

Retailer 2£411 GBP

Retailer 12£476 GBP

Retailer 13£533 GBP

Retailer 15£629 GBP

Retailer 4£636 GBP

Retailer 14£741 GBP

Retailer 9£828 GBP

Retailer 18£872 GBP

Retailer 6£921 GBP

Retailer 3£925 GBP

Retailer 19£1,051 GBP

Retailer 20£1,072 GBP

Do Amore Diamonds£1,529 GBP

39 data points across 23 retailers

29 retailers£184 GBP to £1,529 GBP

Retailer 1

£159 GBP

$213 USD

Price last confirmed 26 days ago

Retailer 2

£184 GBP

$247 USD

View

Final sale: no returns

Retailer 3

£197 GBP

$264 USD

View

Price last confirmed 26 days ago

Retailer 4

£197 GBP

$264 USD

View

Price last confirmed 24 days ago

Retailer 5

£208 GBP

$279 USD

View

Price last confirmed 34 days ago

Retailer 6

£241 GBP

$323 USD

View

Price last confirmed 35 days ago

Retailer 7

£254 GBP

$341 USD

View

Price last confirmed 35 days ago

Retailer 8

£305 GBP

HK$3,200 HKD

View

Retailer 9

£307 GBP

$412 USD

View

Retailer 10

£333 GBP

$446 USD

View

Retailer 11

£366 GBP

€468 EUR

View

Retailer 12

£373 GBP

$500 USD

View

Retailer 13

£376 GBP

ZAR 8,143 ZAR

View

Retailer 14

£411 GBP

View

Retailer 15

£476 GBP

$639 USD

View

B+

Retailer 16

£533 GBP

A$1,100 AUD

View

B+

Retailer 17

£629 GBP

A$1,298 AUD

View

B+

Retailer 18

£636 GBP

$853 USD

View

B+

Retailer 19

£699 GBP

$938 USD

View

Retailer 20

£699 GBP

$938 USD

View

Price last confirmed 24 days ago

B+

Retailer 21

£741 GBP

SGD 1,342 SGD

View

B+

Retailer 22

£828 GBP

$1,110 USD

View

B+

Retailer 23

£872 GBP

View

Retailer 24

£914 GBP

$1,226 USD

View

Price last confirmed 34 days ago

Retailer 25

£921 GBP

$1,236 USD

View

B+

Retailer 26

£925 GBP

$1,240 USD

View

Retailer 27

£1,051 GBP

$1,410 USD

View

B+

Retailer 28

£1,072 GBP

A$2,211 AUD

View

Most Expensive

Do Amore Diamonds

27-BD8891481 · Nov 2

£1,529 GBP

$2,050 USD

View

28 more retailers have this diamond

Prices start from £184 GBPSave up to £1,344 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.

Where to buy this spec

See every retailer carrying 1.03ct D IF marquise lab-grown

Ranked by inventory count, with return policy, certs, and trust signals.

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