Marquise|Natural|GIA

1.00ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 2558742549

Certificate GIA 2558742549

Diamond specifications and retailer prices

From £2,302 GBP

$3,089 USD

As of October 31, 2026

Save £2,915 GBP (56%) vs most expensive(unlock to see where)

34 retailers carry this diamond

Most expensive: £5,217 GBP at NZ Jewellers · As of October 30, 2026

View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558742549. Listed at 34 retailers as of October 30, 2026, with prices from £2,302 to £5,217, a £2,915 spread on the same certified stone. NZ Jewellers lists it at £5,217. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00

Carat

Colour

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 2558742549

Dimensions9.82 × 5.17 × 3.28 mm

L/W Ratio1.90

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Cloud, Crystal, Feather, Needle, Indented Natural, Natural

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 2558742549

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31

Current: £5,217 GBP|Low: £1,957 GBP|High: £5,217 GBP|Avg: £2,996 GBP

NZ Jewellers

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Retailer 34

October 31, 2026

Retailer 28£1,963 GBP

Retailer 7£2,302 GBP

Retailer 33£2,307 GBP

Retailer 5£2,332 GBP

Retailer 4£2,360 GBP

Retailer 32£2,361 GBP

Retailer 16£2,408 GBP

Retailer 19£2,504 GBP

Retailer 27£2,603 GBP

Retailer 15£2,604 GBP

Retailer 17£2,655 GBP

Retailer 6£2,713 GBP

Retailer 31£2,713 GBP

Retailer 12£2,715 GBP

Retailer 22£2,794 GBP

Retailer 9£2,818 GBP

Retailer 20£2,837 GBP

Retailer 21£2,895 GBP

Retailer 8£2,899 GBP

Retailer 29£2,930 GBP

Retailer 10£2,951 GBP

Retailer 23£3,039 GBP

Retailer 13£3,063 GBP

Retailer 11£3,070 GBP

Retailer 34£3,070 GBP

Retailer 14£3,131 GBP

Retailer 3£3,167 GBP

Retailer 18£3,199 GBP

Retailer 24£3,290 GBP

Retailer 2£3,681 GBP

Retailer 26£3,937 GBP

Retailer 25£4,328 GBP

Retailer 30£5,035 GBP

NZ Jewellers£5,217 GBP

24 data points across 34 retailers

34 retailers£2,302 GBP to £5,217 GBP

Retailer 1

£1,831 GBP

HK$19,200 HKD

Price last confirmed 31 days ago

Retailer 2

£2,189 GBP

$2,938 USD

View

Price last confirmed 46 days ago

B+

Retailer 3

£2,302 GBP

$3,089 USD

View

B+

Retailer 4

£2,307 GBP

$3,096 USD

View

Retailer 5

£2,332 GBP

$3,130 USD

View

Price last confirmed 15 days ago

B+

Retailer 6

£2,360 GBP

$3,167 USD

View

B+

Retailer 7

£2,361 GBP

$3,168 USD

View

B+

Retailer 8

£2,408 GBP

$3,232 USD

View

B+

Retailer 9

£2,504 GBP

$3,360 USD

View

Final sale: no returns

Retailer 10

£2,603 GBP

A$5,374 AUD

View

Price last confirmed 33 days ago

B+

Retailer 11

£2,604 GBP

$3,495 USD

View

B+

Retailer 12

£2,655 GBP

CA$4,949 CAD

View

B+

Retailer 13

£2,713 GBP

$3,641 USD

View

B+

Retailer 14

£2,713 GBP

$3,641 USD

View

B+

Retailer 15

£2,715 GBP

$3,643 USD

View

Retailer 16

£2,794 GBP

$3,749 USD

View

Price last confirmed 18 days ago

B+

Retailer 17

£2,818 GBP

$3,781 USD

View

B+

Retailer 18

£2,837 GBP

$3,807 USD

View

Retailer 19

£2,895 GBP

$3,885 USD

View

Retailer 20

£2,899 GBP

$3,890 USD

View

B+

Retailer 21

£2,930 GBP

View

Retailer 22

£2,951 GBP

$3,960 USD

View

B+

Retailer 23

£3,039 GBP

$4,078 USD

View

B+

Retailer 24

£3,063 GBP

View

B+

Retailer 25

£3,070 GBP

$4,120 USD

View

B+

Retailer 26

£3,070 GBP

$4,120 USD

View

B+

Retailer 27

£3,131 GBP

$4,201 USD

View

Retailer 28

£3,167 GBP

$4,250 USD

View

Retailer 29

£3,199 GBP

$4,293 USD

View

B+

Retailer 30

£3,290 GBP

€4,205 EUR

View

Retailer 31

£3,681 GBP

ZAR 79,802 ZAR

View

Retailer 32

£4,328 GBP

$5,808 USD

View

Retailer 33

£5,035 GBP

View

Most Expensive

NZ Jewellers

36cae81a-756a-49e3-a00f-d328032eb3c2 · Oct 30

£5,217 GBP

$7,001 USD

View

33 more retailers have this diamond

Prices start from £2,302 GBPSave up to £2,915 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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