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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 2564327633

Certificate GIA 2564327633

Diamond specifications and retailer prices

From £3,443 GBP
As of November 6, 2026
Save £4,239 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,682 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564327633. Listed at 15 retailers as of November 5, 2026, with prices from £3,443 to £7,682, a £4,239 spread on the same certified stone. NZ Jewellers lists it at £7,682. 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

1.20
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564327633
Dimensions10.62 × 5.50 × 3.41 mm
L/W Ratio1.93
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Twinning Wisp, Cavity, Needle, Indented Natural
Top View
10.62 mm5.50 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564327633
Side View
Table 60.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 62.0%

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 6
Current: £7,682 GBP|Low: £3,414 GBP|High: £7,897 GBP|Avg: £4,738 GBP|-2.7%
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
November 6, 2026
Retailer 11£3,443 GBP
Retailer 2£3,458 GBP
Retailer 6£3,892 GBP
Retailer 3£3,927 GBP
Retailer 5£4,096 GBP
Retailer 4£4,240 GBP
Retailer 8£4,456 GBP
Retailer 12£4,593 GBP
Retailer 13£4,593 GBP
Retailer 7£4,667 GBP
Retailer 15£4,781 GBP
Retailer 14£5,299 GBP
Retailer 10£5,301 GBP
Retailer 9£6,749 GBP
NZ Jewellers£7,682 GBP

27 data points across 15 retailers

15 retailers£3,443 GBP to £7,682 GBP

B+
Cheapest Retailer
-
£3,443 GBP
B+
Retailer 2
-
£3,458 GBP
View
Retailer 3
-
£3,892 GBP
View
Price last confirmed 10 days ago
Retailer 4
-
£3,927 GBP
View
Price last confirmed 15 days ago
B+
Retailer 5
-
£4,096 GBP
View
B
Retailer 6
-
£4,240 GBP
View
Final sale: no returns
B
Retailer 7
-
£4,456 GBP
View
B
Retailer 8
-
£4,593 GBP
View
B
Retailer 9
-
£4,593 GBP
View
Retailer 10
-
£4,667 GBP
View
Price last confirmed 28 days ago
B
Retailer 11
-
£4,781 GBP
View
B
Retailer 12
-
£5,299 GBP
View
B
Retailer 13
-
£5,301 GBP
View
B
Retailer 14
-
£6,749 GBP
View
Most Expensive
B
NZ Jewellers
16ee0a86-0425-4dd0-b086-87179b70aa03 · Nov 5
£7,682 GBP
$10,282 USD
View
14 more retailers have this diamond
Prices start from £3,443 GBPSave up to £4,239 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
£3,443 GBP