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Marquise|Natural|GIA

1.20ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 6552423903

Certificate GIA 6552423903

Diamond specifications and retailer prices

From £3,012 GBP
As of November 6, 2026
Save £3,723 GBP (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,735 GBP at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552423903. Listed at 20 retailers as of November 5, 2026, with prices from £3,012 to £6,735, a £3,723 spread on the same certified stone. NZ Jewellers lists it at £6,735. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle31.5°
OriginNatural
Grading LabGIA
CertificateGIA 6552423903
Dimensions11.32 × 5.36 × 3.16 mm
L/W Ratio2.11
Girdle conditionFaceted
Top View
11.32 mm5.36 mm1.20 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552423903
Side View
Table 59.0%Crown 39.2°Girdle: THK-VTKPavilion 31.5°Culet: NoneDepth 58.9%

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 6
Current: £6,735 GBP|Low: £2,909 GBP|High: £7,014 GBP|Avg: £4,155 GBP|-4.0%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 17£3,012 GBP
Retailer 6£3,064 GBP
Retailer 9£3,181 GBP
Retailer 8£3,255 GBP
Retailer 18£3,367 GBP
Retailer 3£3,396 GBP
Retailer 11£3,648 GBP
Retailer 20£3,648 GBP
Retailer 21£3,648 GBP
Retailer 12£3,842 GBP
Retailer 15£3,890 GBP
Retailer 2£3,960 GBP
Retailer 5£4,087 GBP
Retailer 10£4,087 GBP
Retailer 4£4,209 GBP
Retailer 7£4,229 GBP
Retailer 13£4,279 GBP
Retailer 14£4,444 GBP
Retailer 19£4,686 GBP
Retailer 16£6,396 GBP
NZ Jewellers£6,735 GBP

20 data points across 21 retailers

20 retailers£3,012 GBP to £6,735 GBP

B+
Cheapest Retailer
-
£3,012 GBP
B+
Retailer 2
-
£3,181 GBP
View
B+
Retailer 3
-
£3,255 GBP
View
B+
Retailer 4
-
£3,322 GBP
View
B
Retailer 5
-
£3,367 GBP
View
Final sale: no returns
B
Retailer 6
-
£3,396 GBP
View
B+
Retailer 7
-
£3,648 GBP
View
B+
Retailer 8
-
£3,648 GBP
View
B
Retailer 9
-
£3,842 GBP
View
B+
Retailer 10
-
£3,890 GBP
View
B
Retailer 11
-
£3,960 GBP
View
B
Retailer 12
-
£4,087 GBP
View
B
Retailer 13
-
£4,087 GBP
View
B
Retailer 14
-
£4,209 GBP
View
B
Retailer 15
-
£4,229 GBP
View
B
Retailer 16
-
£4,279 GBP
View
Retailer 17
-
£4,444 GBP
View
Price last confirmed 31 days ago
B
Retailer 18
-
£4,686 GBP
View
B
Retailer 19
-
£6,396 GBP
View
Most Expensive
B
NZ Jewellers
70090db8-0dd4-4044-8fc5-ea7514ec0037 · Nov 5
£6,735 GBP
$9,015 USD
View
19 more retailers have this diamond
Prices start from £3,012 GBPSave up to £3,723 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
£3,012 GBP