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Marquise|Natural|GIA

1.21ct E SI2 Marquise Natural Diamond

GD • E/SI2 • GIA 5556221606

Certificate GIA 5556221606

Diamond specifications and retailer prices

From £3,751 GBP
As of November 5, 2026
Save £4,188 GBP (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,939 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5556221606. Listed at 13 retailers as of November 5, 2026, with prices from £3,751 to £7,939, a £4,188 spread on the same certified stone. NZ Jewellers lists it at £7,939. 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

1.21
Carat
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.46°
Pavilion angle38.47°
OriginNatural
Grading LabGIA
CertificateGIA 5556221606
Dimensions10.26 × 5.57 × 3.44 mm
L/W Ratio1.84
Culet sizeNone
Top View
10.26 mm5.57 mm1.21 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556221606
Side View
Table 58.0%Crown 40.46°Girdle: THK-VTKPavilion 38.47°Culet: NoneDepth 61.8%

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 5
Current: £4,667 GBP|Low: £3,308 GBP|High: £7,078 GBP|Avg: £4,808 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£3,970 GBP
Retailer 6£4,300 GBP
Retailer 7£4,300 GBP
Retailer 3£4,508 GBP
Retailer 1£4,667 GBP
Retailer 2£4,874 GBP
Retailer 4£6,974 GBP

41 data points across 7 retailers

13 retailers£3,751 GBP to £7,939 GBP

B+
Cheapest Retailer
-
£3,751 GBP
B
Retailer 2
-
£3,970 GBP
View
Final sale: no returns
B
Retailer 3
-
£4,002 GBP
View
Retailer 4
-
£4,300 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£4,300 GBP
View
B
Retailer 6
-
£4,300 GBP
View
B
Retailer 7
-
£4,508 GBP
View
B
Retailer 8
-
£4,667 GBP
View
B
Retailer 9
-
£4,874 GBP
View
B
Retailer 10
-
£4,962 GBP
View
Retailer 11
-
£5,234 GBP
View
Price last confirmed 14 days ago
B
Retailer 12
-
£6,974 GBP
View
Most Expensive
C
NZ Jewellers
8b832a22-d3cb-4e79-bc7e-43f6c2a1792d · Nov 5
£7,939 GBP
$10,685 USD
View
12 more retailers have this diamond
Prices start from £3,751 GBPSave up to £4,188 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+
1.21ct Marquise
£3,751 GBP