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Marquise|Natural|GIA

1.20ct F I1 Marquise Natural Diamond

F/I1 • GIA 2557054863

Certificate GIA 2557054863

Diamond specifications and retailer prices

From £2,434 GBP
HK$25,500 HKD
As of November 1, 2026
Save £3,018 GBP (55%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,452 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included) and certified by GIA 2557054863. Listed at 8 retailers as of November 1, 2026, with prices from £2,434 to £5,452, a £3,018 spread on the same certified stone. NZ Jewellers lists it at £5,452. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
F
Colour
I1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557054863
Dimensions10.56 × 5.47 × 3.53 mm
L/W Ratio1.93
Top View
10.56 mm5.47 mm1.20 ctF / I1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557054863
Side View
Table 54.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.5%

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 1
Current: £5,452 GBP|Low: £2,415 GBP|High: £5,750 GBP|Avg: £3,364 GBP|-5.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 3£2,434 GBP
Retailer 2£2,449 GBP
Retailer 6£2,889 GBP
Retailer 7£2,960 GBP
Retailer 4£3,130 GBP
Retailer 5£3,130 GBP
Retailer 8£3,611 GBP
NZ Jewellers£5,452 GBP

46 data points across 8 retailers

8 retailers£2,434 GBP to £5,452 GBP

B+
Cheapest Retailer
-
£2,434 GBP
HK$25,500 HKD
B+
Retailer 2
-
£2,449 GBP
₹312,784 INR
View
B
Retailer 3
-
£2,889 GBP
$3,874 USD
View
Final sale: no returns
B
Retailer 4
-
£2,960 GBP
$3,969 USD
View
B
Retailer 5
-
£3,130 GBP
$4,197 USD
View
B
Retailer 6
-
£3,130 GBP
$4,197 USD
View
B
Retailer 7
-
£3,611 GBP
$4,843 USD
View
Most Expensive
C
NZ Jewellers
f13b5eee-02de-4667-80aa-2fba9d58c56d · Nov 3
£5,452 GBP
$7,312 USD
View
7 more retailers have this diamond
Prices start from £2,434 GBPSave up to £3,018 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+
1.20ct Marquise
£2,434 GBP