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Marquise|Natural|GIA

1.00ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 5556942298

Certificate GIA 5556942298

Diamond specifications and retailer prices

From £1,759 GBP
As of November 6, 2026
Save £2,154 GBP (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,095 GBP at NZ Jewellers · As of October 17, 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 5556942298. Listed at 18 retailers as of November 2, 2026, with a 122% 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556942298
Dimensions10.10 × 5.24 × 3.17 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Knot, Needle, Indented Natural
Top View
10.10 mm5.24 mm1.00 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556942298
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.4%

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: £4,095 GBP|Low: £1,759 GBP|High: £4,095 GBP|Avg: £2,722 GBP
NZ Jewellers
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 16£1,759 GBP
Retailer 2£1,827 GBP
Retailer 12£2,073 GBP
Retailer 4£2,160 GBP
Retailer 9£2,301 GBP
Retailer 7£2,350 GBP
Retailer 11£2,421 GBP
Retailer 8£2,441 GBP
Retailer 3£2,448 GBP
Retailer 10£2,453 GBP
Retailer 14£2,524 GBP
Retailer 6£2,712 GBP
Retailer 13£2,728 GBP
Retailer 15£3,913 GBP
Retailer 5£3,937 GBP
NZ Jewellers£4,095 GBP

26 data points across 16 retailers

18 retailers£1,759 GBP to £3,913 GBP

A
Cheapest Retailer
-
£1,759 GBP
A
Retailer 2
-
£1,827 GBP
View
A
Retailer 3
-
£2,073 GBP
View
A
Retailer 4
-
£2,160 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,182 GBP
View
B+
Retailer 6
-
£2,301 GBP
View
Retailer 7
-
£2,350 GBP
View
Price last confirmed 20 days ago
Retailer 8
-
£2,350 GBP
View
Price last confirmed 26 days ago
B+
Retailer 9
-
£2,421 GBP
View
Retailer 10
-
£2,441 GBP
View
Price last confirmed 22 days ago
B+
Retailer 11
-
£2,448 GBP
View
B+
Retailer 12
-
£2,453 GBP
View
B+
Retailer 13
-
£2,524 GBP
View
Retailer 14
-
£2,712 GBP
View
Price last confirmed 19 days ago
B+
Retailer 15
-
£2,728 GBP
View
B
Retailer 16
-
£3,913 GBP
View
Retailer 17
-
£3,937 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
a30c2f00-8204-4033-8aed-f40af7f823f5 · Oct 17
£4,095 GBP
$5,481 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from £1,759 GBPSave up to £2,154 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
£1,759 GBP