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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 5563274178

Certificate GIA 5563274178

Diamond specifications and retailer prices

From £2,696 GBP
As of November 6, 2026
Save £3,569 GBP (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,265 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 5563274178. Listed at 21 retailers as of November 5, 2026, with prices from £2,696 to £6,265, a £3,569 spread on the same certified stone. NZ Jewellers lists it at £6,265. 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 5563274178
Dimensions10.11 × 5.49 × 3.53 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Cavity, Needle, Indented Natural, Natural
Top View
10.11 mm5.49 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563274178
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.4%

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: £6,265 GBP|Low: £2,668 GBP|High: £6,357 GBP|Avg: £3,937 GBP|-1.4%
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
November 6, 2026
Retailer 17£2,696 GBP
Retailer 14£2,781 GBP
Retailer 2£2,803 GBP
Retailer 7£3,186 GBP
Retailer 6£3,205 GBP
Retailer 11£3,489 GBP
Retailer 12£3,520 GBP
Retailer 3£3,597 GBP
Retailer 4£3,597 GBP
Retailer 9£3,597 GBP
Retailer 5£3,709 GBP
Retailer 8£3,804 GBP
Retailer 16£4,069 GBP
Retailer 10£4,149 GBP
Retailer 13£4,388 GBP
Retailer 18£5,541 GBP
Retailer 15£5,712 GBP
NZ Jewellers£6,265 GBP

26 data points across 18 retailers

21 retailers£2,696 GBP to £6,265 GBP

A
Cheapest Retailer
-
£2,696 GBP
A
Retailer 2
-
£2,781 GBP
View
A
Retailer 3
-
£2,803 GBP
View
B+
Retailer 4
-
£3,186 GBP
View
B+
Retailer 5
-
£3,205 GBP
View
B+
Retailer 6
-
£3,325 GBP
View
B+
Retailer 7
-
£3,328 GBP
View
B+
Retailer 8
-
£3,489 GBP
View
B+
Retailer 9
-
£3,520 GBP
View
B
Retailer 10
-
£3,597 GBP
View
Retailer 11
-
£3,597 GBP
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£3,597 GBP
View
Retailer 13
-
£3,678 GBP
View
Price last confirmed 29 days ago
B+
Retailer 14
-
£3,709 GBP
View
B+
Retailer 15
-
£3,804 GBP
View
B+
Retailer 16
-
£4,069 GBP
View
B+
Retailer 17
-
£4,149 GBP
View
B
Retailer 18
-
£4,388 GBP
View
Retailer 19
-
£5,541 GBP
View
Price last confirmed 10 days ago
B
Retailer 20
-
£5,712 GBP
View
Most Expensive
B
NZ Jewellers
d2dedced-70e1-44c1-b269-040c0abc1bf8 · Nov 5
£6,265 GBP
$8,386 USD
View
20 more retailers have this diamond
Prices start from £2,696 GBPSave up to £3,569 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
1.20ct Marquise
£2,696 GBP