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Marquise|Natural|GIA

1.20ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 7568018814

Certificate GIA 7568018814

Diamond specifications and retailer prices

From £3,641 GBP
As of November 4, 2026
Save £4,067 GBP (53%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £7,709 GBP at NZ Jewellers · As of October 9, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7568018814. Listed at 28 retailers as of November 4, 2026, with a 112% 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle41.03°
OriginNatural
Grading LabGIA
CertificateGIA 7568018814
Dimensions10.20 × 5.51 × 3.57 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.20 mm5.51 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 7568018814
Side View
Table 63.0%Crown 40.7°Girdle: MED-VTKPavilion 41.03°Culet: NoneDepth 64.8%

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 4
Current: £7,709 GBP|Low: £3,641 GBP|High: £7,709 GBP|Avg: £4,612 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
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Retailer 22
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Retailer 25
Retailer 26
November 6, 2026
Retailer 14£3,641 GBP
Retailer 15£3,669 GBP
Retailer 25£3,672 GBP
Retailer 11£3,886 GBP
Retailer 12£3,907 GBP
Retailer 19£4,068 GBP
Retailer 16£4,125 GBP
Retailer 5£4,161 GBP
Retailer 3£4,176 GBP
Retailer 23£4,176 GBP
Retailer 26£4,176 GBP
Retailer 9£4,369 GBP
Retailer 13£4,378 GBP
Retailer 7£4,388 GBP
Retailer 2£4,471 GBP
Retailer 18£4,488 GBP
Retailer 6£4,662 GBP
Retailer 8£4,662 GBP
Retailer 4£4,818 GBP
Retailer 24£4,819 GBP
Retailer 10£4,875 GBP
Retailer 22£5,015 GBP
Retailer 17£5,083 GBP
Retailer 20£5,623 GBP
Retailer 21£6,771 GBP
NZ Jewellers£7,709 GBP

30 data points across 26 retailers

28 retailers£3,641 GBP to £7,709 GBP

B+
Cheapest Retailer
-
£3,641 GBP
B+
Retailer 2
-
£3,669 GBP
View
B+
Retailer 3
-
£3,672 GBP
View
B
Retailer 4
-
£3,886 GBP
View
B
Retailer 5
-
£3,907 GBP
View
B
Retailer 6
-
£4,125 GBP
View
B
Retailer 7
-
£4,161 GBP
View
B
Retailer 8
-
£4,176 GBP
View
Retailer 9
-
£4,176 GBP
View
Price last confirmed 27 days ago
B
Retailer 10
-
£4,176 GBP
View
Retailer 11
-
£4,176 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
£4,369 GBP
View
B
Retailer 13
-
£4,378 GBP
View
B
Retailer 14
-
£4,388 GBP
View
B
Retailer 15
-
£4,471 GBP
View
B
Retailer 16
-
£4,662 GBP
View
B
Retailer 17
-
£4,662 GBP
View
Retailer 18
-
£4,818 GBP
View
Price last confirmed 28 days ago
B
Retailer 19
-
£4,818 GBP
View
B
Retailer 20
-
£4,819 GBP
View
B
Retailer 21
-
£4,875 GBP
View
B
Retailer 22
-
£5,015 GBP
View
Retailer 23
-
£5,083 GBP
View
Price last confirmed 26 days ago
Retailer 24
-
£5,581 GBP
View
Price last confirmed 40 days ago
B
Retailer 25
-
£5,623 GBP
View
B
Retailer 26
-
£6,771 GBP
View
B
Retailer 27
-
£7,709 GBP
View
Most Expensive
NZ Jewellers
8184a7e4-a155-412b-a13a-e948a511cb57 · Oct 9
£7,709 GBP
$10,318 USD
View
Price last confirmed 28 days ago
27 more retailers have this diamond
Prices start from £3,641 GBPSave up to £4,067 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
£3,641 GBP