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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 7548335246

Certificate GIA 7548335246

Diamond specifications and retailer prices

From £4,300 GBP
As of November 5, 2026
Save £3,283 GBP (43%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £9,101 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 7548335246. Listed at 17 retailers as of November 2, 2026, with a 76% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceMedium
Crown angle39.9°
Pavilion angle38.74°
OriginNatural
Grading LabGIA
CertificateGIA 7548335246
Dimensions10.06 × 5.49 × 3.52 mm
L/W Ratio1.83
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather
Top View
10.06 mm5.49 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7548335246
Side View
Table 59.0%Crown 39.9°GirdlePavilion 38.74°Culet: NDepth 64.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £5,278 GBP|Low: £4,170 GBP|High: £7,674 GBP|Avg: £5,398 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£4,300 GBP
Retailer 9£4,550 GBP
Retailer 11£4,576 GBP
Retailer 2£4,588 GBP
Retailer 3£5,005 GBP
Retailer 4£5,080 GBP
Retailer 1£5,278 GBP
Retailer 8£5,281 GBP
Retailer 6£5,920 GBP
Retailer 5£6,639 GBP
Retailer 7£7,582 GBP

37 data points across 11 retailers

17 retailers£4,300 GBP to £7,582 GBP

B
Cheapest Retailer
-
£4,300 GBP
Retailer 2
-
£4,550 GBP
View
Price last confirmed 9 days ago
B
Retailer 3
-
£4,550 GBP
View
Final sale: no returns
B
Retailer 4
-
£4,576 GBP
View
B
Retailer 5
-
£4,588 GBP
View
B
Retailer 6
-
£4,929 GBP
View
B
Retailer 7
-
£5,005 GBP
View
B
Retailer 8
-
£5,080 GBP
View
B
Retailer 9
-
£5,278 GBP
View
Retailer 10
-
£5,281 GBP
View
Price last confirmed 16 days ago
B
Retailer 11
-
£5,564 GBP
View
B
Retailer 12
-
£5,688 GBP
View
B
Retailer 13
-
£5,920 GBP
View
Retailer 14
-
£5,996 GBP
View
Price last confirmed 15 days ago
B
Retailer 15
-
£6,639 GBP
View
B
Retailer 16
-
£7,582 GBP
View
Most Expensive
NZ Jewellers
3fbba999-8350-4c1d-b2cf-927f55d0de1e · Nov 5
£9,101 GBP
$12,181 USD
View
Price under review
16 more retailers have this diamond
Prices start from £4,300 GBPSave up to £3,283 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
£4,300 GBP