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Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 2557124694

Certificate GIA 2557124694

Diamond specifications and retailer prices

From £3,688 GBP
As of November 4, 2026
Save £4,687 GBP (56%) vs most expensive(unlock to see where)
34 retailers carry this diamond
Most expensive: £8,375 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557124694. Listed at 34 retailers as of November 4, 2026, with prices from £3,688 to £8,375, a £4,687 spread on the same certified stone. NZ Jewellers lists it at £8,375. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.52°
Pavilion angle40.77°
OriginNatural
Grading LabGIA
CertificateGIA 2557124694
Dimensions10.13 × 5.47 × 3.59 mm
L/W Ratio1.85
Top View
10.13 mm5.47 mm1.20 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557124694
Side View
Table 59.0%Crown 40.52°Girdle: MED-VTKPavilion 40.77°Culet: NoneDepth 65.6%

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: £8,375 GBP|Low: £3,688 GBP|High: £8,375 GBP|Avg: £5,110 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 18£3,688 GBP
Retailer 21£3,780 GBP
Retailer 7£3,912 GBP
Retailer 14£3,956 GBP
Retailer 20£3,959 GBP
Retailer 5£4,187 GBP
Retailer 9£4,229 GBP
Retailer 6£4,294 GBP
Retailer 12£4,536 GBP
Retailer 22£4,536 GBP
Retailer 10£4,728 GBP
Retailer 13£4,755 GBP
Retailer 2£4,858 GBP
Retailer 3£4,887 GBP
Retailer 4£5,050 GBP
Retailer 11£5,071 GBP
Retailer 8£5,126 GBP
Retailer 19£5,449 GBP
Retailer 16£6,110 GBP
Retailer 15£7,258 GBP
Retailer 17£7,358 GBP
NZ Jewellers£8,375 GBP

31 data points across 22 retailers

34 retailers£3,688 GBP to £8,375 GBP

B+
Cheapest Retailer
-
£3,688 GBP
B+
Retailer 2
-
£3,762 GBP
View
B+
Retailer 3
-
£3,780 GBP
View
B+
Retailer 4
-
£3,912 GBP
View
B+
Retailer 5
-
£3,956 GBP
View
B
Retailer 6
-
£3,959 GBP
View
B
Retailer 7
-
£4,008 GBP
View
B
Retailer 8
-
£4,070 GBP
View
B+
Retailer 9
-
£4,113 GBP
View
B+
Retailer 10
-
£4,187 GBP
View
Final sale: no returns
B+
Retailer 11
-
£4,229 GBP
View
B+
Retailer 12
-
£4,294 GBP
View
B
Retailer 13
-
£4,473 GBP
View
B
Retailer 14
-
£4,536 GBP
View
Retailer 15
-
£4,536 GBP
View
Price last confirmed 9 days ago
B
Retailer 16
-
£4,536 GBP
View
B
Retailer 17
-
£4,564 GBP
View
B
Retailer 18
-
£4,673 GBP
View
B
Retailer 19
-
£4,728 GBP
View
B
Retailer 20
-
£4,755 GBP
View
B
Retailer 21
-
£4,858 GBP
View
Retailer 22
-
£4,887 GBP
View
Price last confirmed 26 days ago
B
Retailer 23
-
£5,050 GBP
View
B
Retailer 24
-
£5,050 GBP
View
B
Retailer 25
-
£5,071 GBP
View
B
Retailer 26
-
£5,126 GBP
View
B
Retailer 27
-
£5,222 GBP
View
B
Retailer 28
-
£5,234 GBP
View
B
Retailer 29
-
£5,449 GBP
View
Retailer 30
-
£5,520 GBP
View
Price last confirmed 24 days ago
B
Retailer 31
-
£6,110 GBP
View
B
Retailer 32
-
£7,258 GBP
View
B
Retailer 33
-
£7,358 GBP
View
Most Expensive
B
NZ Jewellers
83d11d8a-a40f-44b2-b8bc-46f70a6d3d7e · Nov 5
£8,375 GBP
$11,210 USD
View
33 more retailers have this diamond
Prices start from £3,688 GBPSave up to £4,687 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
£3,688 GBP