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Marquise|Natural|GIA

1.00ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 7558048770

Certificate GIA 7558048770

Diamond specifications and retailer prices

From £1,788 GBP
As of November 6, 2026
Save £737 GBP (29%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,144 GBP at NZ Jewellers · As of September 20, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558048770. Listed at 18 retailers as of November 6, 2026, with a 41% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558048770
Dimensions9.73 × 5.24 × 3.20 mm
L/W Ratio1.86
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Cavity, Indented Natural
Top View
9.73 mm5.24 mm1.00 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558048770
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
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 6
Current: £2,525 GBP|Low: £1,769 GBP|High: £4,015 GBP|Avg: £2,538 GBP|-0.9%
Retailer 1
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
November 6, 2026
Retailer 8£1,788 GBP
Retailer 7£1,850 GBP
Retailer 14£2,090 GBP
Retailer 5£2,163 GBP
Retailer 13£2,164 GBP
Retailer 9£2,306 GBP
Retailer 6£2,369 GBP
Retailer 12£2,427 GBP
Retailer 10£2,452 GBP
Retailer 11£2,483 GBP
Retailer 1£2,525 GBP
Retailer 2£2,755 GBP
Retailer 3£3,942 GBP
Retailer 4£3,984 GBP

23 data points across 14 retailers

18 retailers£1,788 GBP to £2,525 GBP

A
Cheapest Retailer
-
£1,788 GBP
A
Retailer 2
-
£1,850 GBP
View
A
Retailer 3
-
£2,090 GBP
View
Retailer 4
-
£2,163 GBP
View
Price last confirmed 15 days ago
A
Retailer 5
-
£2,164 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,200 GBP
View
B+
Retailer 7
-
£2,306 GBP
View
Retailer 8
-
£2,369 GBP
View
Price last confirmed 22 days ago
Retailer 9
-
£2,379 GBP
View
Price last confirmed 43 days ago
B+
Retailer 10
-
£2,427 GBP
View
B+
Retailer 11
-
£2,452 GBP
View
B+
Retailer 12
-
£2,483 GBP
View
B+
Retailer 13
-
£2,525 GBP
View
Retailer 14
-
£2,745 GBP
View
Price last confirmed 67 days ago
Retailer 15
-
£2,745 GBP
View
Price last confirmed 44 days ago
Retailer 16
-
£3,942 GBP
View
Price last confirmed 15 days ago
Retailer 17
-
£3,984 GBP
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
4539f30d-0c8a-4c4c-b33d-18383b512e73 · Sep 20
£4,144 GBP
$5,547 USD
View
Price last confirmed 47 days ago
17 more retailers have this diamond
Prices start from £1,788 GBPSave up to £737 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.

A
1.00ct Marquise
£1,788 GBP