Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

GD • F/SI1 • GIA 1553104466

Certificate GIA 1553104466

Diamond specifications and retailer prices

From £3,893 GBP
As of November 7, 2026
15 retailers carry this diamond
Most expensive: £7,015 GBP at NZ Jewellers · As of September 29, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1553104466. Listed at 15 retailers as of November 7, 2026. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle41.44°
Pavilion angle42.1°
OriginNatural
Grading LabGIA
CertificateGIA 1553104466
Dimensions9.90 × 5.43 × 3.68 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.90 mm5.43 mm1.20 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1553104466
Side View
Table 63.0%Crown 41.44°Girdle: THN-ETKPavilion 42.1°Culet: NoneDepth 67.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 7
Current: £4,452 GBP|Low: £2,761 GBP|High: £6,761 GBP|Avg: £3,992 GBP|-6.7%
Retailer 1
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
Retailer 22
Retailer 23
October 23, 2026
Retailer 15£3,038 GBP
Retailer 6£3,174 GBP
Retailer 22£3,277 GBP
Retailer 14£3,292 GBP
Retailer 17£3,313 GBP
Retailer 23£3,314 GBP
Retailer 10£3,355 GBP
Retailer 20£3,507 GBP
Retailer 3£3,571 GBP
Retailer 2£3,800 GBP
Retailer 7£3,893 GBP
Retailer 13£3,914 GBP
Retailer 4£3,954 GBP
Retailer 12£4,052 GBP
Retailer 8£4,199 GBP
Retailer 9£4,199 GBP
Retailer 21£4,201 GBP
Retailer 11£4,341 GBP
Retailer 1£4,452 GBP
Retailer 16£4,564 GBP
Retailer 18£5,062 GBP
Retailer 5£6,075 GBP
Retailer 19£6,717 GBP

25 data points across 23 retailers

15 retailers

Retailer 1
-
£3,314 GBP
Price last confirmed 15 days ago
Retailer 2
-
£3,355 GBP
View
Price last confirmed 17 days ago
Retailer 3
-
£3,571 GBP
View
Price last confirmed 15 days ago
Retailer 4
-
£3,800 GBP
View
Price last confirmed 37 days ago
Retailer 5
-
£3,800 GBP
View
Price last confirmed 37 days ago
Retailer 6
-
£3,800 GBP
View
Price last confirmed 26 days ago
B
Retailer 7
-
£3,893 GBP
View
Retailer 8
-
£3,914 GBP
View
Price last confirmed 24 days ago
Retailer 9
-
£4,052 GBP
View
Price last confirmed 15 days ago
Retailer 10
-
£4,201 GBP
View
Price last confirmed 29 days ago
Retailer 11
-
£4,385 GBP
View
Price last confirmed 39 days ago
Retailer 12
-
£5,062 GBP
View
Price last confirmed 16 days ago
Retailer 13
-
£6,075 GBP
View
Price last confirmed 17 days ago
Retailer 14
-
£6,717 GBP
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
5a33cd25-3d72-4ab6-a5b7-47002afba5b5 · Sep 29
£7,015 GBP
$9,390 USD
View
Price last confirmed 38 days ago
14 more retailers have this diamond
Prices start from £3,893 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
£3,893 GBP