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Marquise|Natural|GIA

1.20ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 6247018424

Certificate GIA 6247018424

Diamond specifications and retailer prices

From £3,038 GBP
As of November 5, 2026
Save £3,567 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,936 GBP at NZ Jewellers · As of October 21, 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6247018424. Listed at 17 retailers as of November 2, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.91°
Pavilion angle37.33°
OriginNatural
Grading LabGIA
CertificateGIA 6247018424
Dimensions10.44 × 5.50 × 3.33 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.44 mm5.50 mm1.20 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6247018424
Side View
Table 59.0%Crown 40.91°Girdle: THK-VTKPavilion 37.33°Culet: NoneDepth 60.5%

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 5
Current: £6,936 GBP|Low: £3,038 GBP|High: £6,936 GBP|Avg: £4,382 GBP
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 5£3,038 GBP
Retailer 15£3,277 GBP
Retailer 11£3,468 GBP
Retailer 4£3,757 GBP
Retailer 8£4,006 GBP
Retailer 2£4,078 GBP
Retailer 7£4,191 GBP
Retailer 13£4,206 GBP
Retailer 14£4,206 GBP
Retailer 6£4,335 GBP
Retailer 12£4,348 GBP
Retailer 3£4,575 GBP
Retailer 9£4,673 GBP
Retailer 10£6,605 GBP
NZ Jewellers£6,936 GBP

38 data points across 15 retailers

17 retailers£3,038 GBP to £6,605 GBP

B+
Cheapest Retailer
-
£3,038 GBP
B+
Retailer 2
-
£3,277 GBP
View
B
Retailer 3
-
£3,468 GBP
View
Final sale: no returns
B
Retailer 4
-
£3,718 GBP
View
Retailer 5
-
£3,757 GBP
View
Price last confirmed 21 days ago
Retailer 6
-
£3,757 GBP
View
Price last confirmed 22 days ago
Retailer 7
-
£3,757 GBP
View
Price last confirmed 16 days ago
B
Retailer 8
-
£4,006 GBP
View
B
Retailer 9
-
£4,078 GBP
View
B
Retailer 10
-
£4,206 GBP
View
B
Retailer 11
-
£4,206 GBP
View
Retailer 12
-
£4,335 GBP
View
Price last confirmed 17 days ago
B
Retailer 13
-
£4,348 GBP
View
Retailer 14
-
£4,575 GBP
View
Price last confirmed 23 days ago
B
Retailer 15
-
£4,673 GBP
View
B
Retailer 16
-
£6,605 GBP
View
Most Expensive
NZ Jewellers
333f306e-2485-4048-9e34-acfc82579e69 · Oct 21
£6,936 GBP
$9,284 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from £3,038 GBPSave up to £3,567 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
£3,038 GBP