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Marquise|Natural|GIA

1.20ct F I1 Marquise Natural Diamond

VG • F/I1 • GIA 6541963754

Certificate GIA 6541963754

Diamond specifications and retailer prices

From £3,165 GBP
$4,244 USD
As of October 29, 2026
Save £411 GBP (11%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £5,513 GBP at NZ Jewellers · As of October 14, 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), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541963754. Listed at 6 retailers as of October 28, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541963754
Dimensions10.18 × 5.47 × 3.54 mm
L/W Ratio1.86
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
10.18 mm5.47 mm1.20 ctF / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6541963754
Side View
Table 52.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 64.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £5,513 GBP|Low: £2,563 GBP|High: £5,513 GBP|Avg: £3,446 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 8£2,563 GBP
Retailer 5£2,784 GBP
Retailer 2£3,165 GBP
Retailer 6£3,165 GBP
Retailer 7£3,429 GBP
Retailer 3£3,576 GBP
Retailer 4£3,651 GBP
NZ Jewellers£5,513 GBP

10 data points across 8 retailers

6 retailers£3,165 GBP to £3,576 GBP

Retailer 1
-
£2,784 GBP
$3,734 USD
Price last confirmed 7 days ago
B
Retailer 2
-
£3,165 GBP
$4,244 USD
View
B
Retailer 3
-
£3,165 GBP
$4,244 USD
View
B
Retailer 4
-
£3,576 GBP
€4,567 EUR
View
Retailer 5
-
£3,651 GBP
$4,896 USD
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
81a36966-bfb1-43a2-9cac-dedce11f6466 · Oct 14
£5,513 GBP
$7,393 USD
View
Price last confirmed 20 days ago
5 more retailers have this diamond
Prices start from £3,165 GBPSave up to £411 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
£3,165 GBP