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Marquise|Natural|GIA

1.21ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2245012124

Certificate GIA 2245012124

Diamond specifications and retailer prices

From £3,767 GBP
As of November 5, 2026
Save £4,379 GBP (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £8,146 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245012124. Listed at 19 retailers as of November 5, 2026, with prices from £3,767 to £8,146, a £4,379 spread on the same certified stone. NZ Jewellers lists it at £8,146. 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

1.21
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.85°
Pavilion angle40.41°
OriginNatural
Grading LabGIA
CertificateGIA 2245012124
Dimensions10.52 × 5.54 × 3.55 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.52 mm5.54 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245012124
Side View
Table 60.0%Crown 38.85°Girdle: STK-THKPavilion 40.41°Culet: NoneDepth 64.2%

Caratlytics Score

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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: £8,146 GBP|Low: £2,404 GBP|High: £8,146 GBP|Avg: £4,689 GBP
NZ Jewellers
Retailer 2
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Retailer 27
November 6, 2026
Retailer 17£2,404 GBP
Retailer 12£3,534 GBP
Retailer 16£3,557 GBP
Retailer 25£3,767 GBP
Retailer 7£3,848 GBP
Retailer 27£3,933 GBP
Retailer 20£4,029 GBP
Retailer 26£4,073 GBP
Retailer 8£4,116 GBP
Retailer 14£4,133 GBP
Retailer 18£4,171 GBP
Retailer 23£4,413 GBP
Retailer 5£4,604 GBP
Retailer 13£4,626 GBP
Retailer 2£4,725 GBP
Retailer 15£4,812 GBP
Retailer 10£4,919 GBP
Retailer 11£4,919 GBP
Retailer 4£4,987 GBP
Retailer 9£5,082 GBP
Retailer 21£5,091 GBP
Retailer 24£5,283 GBP
Retailer 6£5,370 GBP
Retailer 19£5,497 GBP
Retailer 22£5,942 GBP
Retailer 3£7,214 GBP
NZ Jewellers£8,146 GBP

5 data points across 27 retailers

19 retailers£3,767 GBP to £8,146 GBP

B+
Cheapest Retailer
-
£3,767 GBP
Retailer 2
-
£3,848 GBP
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£4,029 GBP
View
B+
Retailer 4
-
£4,073 GBP
View
Final sale: no returns
B+
Retailer 5
-
£4,116 GBP
View
B+
Retailer 6
-
£4,413 GBP
View
B
Retailer 7
-
£4,604 GBP
View
B+
Retailer 8
-
£4,626 GBP
View
B+
Retailer 9
-
£4,725 GBP
View
B
Retailer 10
-
£4,919 GBP
View
B
Retailer 11
-
£4,919 GBP
View
B
Retailer 12
-
£4,987 GBP
View
B
Retailer 13
-
£5,082 GBP
View
B
Retailer 14
-
£5,091 GBP
View
Retailer 15
-
£5,091 GBP
View
Price last confirmed 16 days ago
Retailer 16
-
£5,370 GBP
View
Price last confirmed 14 days ago
B
Retailer 17
-
£5,942 GBP
View
Retailer 18
-
£7,214 GBP
View
Price last confirmed 16 days ago
Most Expensive
B
NZ Jewellers
37fadd84-ff04-4ea0-ab27-69096abcf447 · Nov 5
£8,146 GBP
$10,964 USD
View
18 more retailers have this diamond
Prices start from £3,767 GBPSave up to £4,379 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
£3,767 GBP