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Marquise|Natural|GIA

1.00ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2557785905

Certificate GIA 2557785905

Diamond specifications and retailer prices

From £2,369 GBP
As of November 5, 2026
Save £2,764 GBP (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £5,133 GBP at NZ Jewellers · As of November 5, 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 2557785905. Listed at 14 retailers as of November 5, 2026, with prices from £2,369 to £5,133, a £2,764 spread on the same certified stone. NZ Jewellers lists it at £5,133. 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 2557785905
Dimensions10.00 × 5.22 × 3.34 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Top View
10.00 mm5.22 mm1.00 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557785905
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 64.0%

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: Nov 5
Current: £2,897 GBP|Low: £2,369 GBP|High: £4,985 GBP|Avg: £2,963 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7£2,369 GBP
Retailer 5£2,406 GBP
Retailer 2£2,469 GBP
Retailer 8£2,507 GBP
Retailer 10£2,669 GBP
Retailer 9£2,772 GBP
Retailer 1£2,897 GBP
Retailer 4£2,966 GBP
Retailer 3£3,232 GBP
Retailer 6£4,926 GBP

42 data points across 10 retailers

14 retailers£2,369 GBP to £5,133 GBP

B+
Cheapest Retailer
-
£2,369 GBP
B+
Retailer 2
-
£2,406 GBP
View
B+
Retailer 3
-
£2,469 GBP
View
B+
Retailer 4
-
£2,507 GBP
View
B+
Retailer 5
-
£2,669 GBP
View
Retailer 6
-
£2,669 GBP
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£2,772 GBP
View
B+
Retailer 8
-
£2,897 GBP
View
B
Retailer 9
-
£2,966 GBP
View
B
Retailer 10
-
£3,080 GBP
View
B+
Retailer 11
-
£3,232 GBP
View
Retailer 12
-
£3,335 GBP
View
Price last confirmed 15 days ago
B
Retailer 13
-
£4,926 GBP
View
Most Expensive
B
NZ Jewellers
f7c2cd6e-a9fd-43ed-a2d8-cd0186ba7a74 · Nov 5
£5,133 GBP
$6,870 USD
View
13 more retailers have this diamond
Prices start from £2,369 GBPSave up to £2,764 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.

B+
1.00ct Marquise
£2,369 GBP