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Marquise|Natural|GIA

1.20ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6247004940

Certificate GIA 6247004940

Diamond specifications and retailer prices

From £3,401 GBP
As of November 1, 2026
Save £3,021 GBP (47%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £7,290 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6247004940. Listed at 17 retailers as of November 1, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.35°
Pavilion angle38.35°
OriginNatural
Grading LabGIA
CertificateGIA 6247004940
Dimensions10.45 × 5.52 × 3.36 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.45 mm5.52 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6247004940
Side View
Table 58.0%Crown 39.35°Girdle: MED-THKPavilion 38.35°Culet: NoneDepth 60.9%

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 1
Current: £7,290 GBP|Low: £3,193 GBP|High: £7,290 GBP|Avg: £4,521 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 3, 2026
Retailer 11£3,401 GBP
Retailer 4£3,445 GBP
Retailer 12£3,485 GBP
Retailer 13£3,645 GBP
Retailer 6£3,949 GBP
Retailer 2£4,251 GBP
Retailer 8£4,309 GBP
Retailer 3£4,413 GBP
Retailer 15£4,413 GBP
Retailer 7£4,556 GBP
Retailer 14£4,562 GBP
Retailer 9£4,762 GBP
Retailer 5£4,808 GBP
Retailer 10£6,422 GBP
NZ Jewellers£7,290 GBP

35 data points across 15 retailers

17 retailers£3,401 GBP to £6,422 GBP

B+
Cheapest Retailer
-
£3,401 GBP
B+
Retailer 2
-
£3,445 GBP
View
B+
Retailer 3
-
£3,485 GBP
View
B+
Retailer 4
-
£3,909 GBP
View
Retailer 5
-
£3,949 GBP
View
Price last confirmed 20 days ago
Retailer 6
-
£3,949 GBP
View
Price last confirmed 15 days ago
Retailer 7
-
£3,949 GBP
View
Price last confirmed 21 days ago
B+
Retailer 8
-
£4,251 GBP
View
B+
Retailer 9
-
£4,309 GBP
View
B+
Retailer 10
-
£4,413 GBP
View
B+
Retailer 11
-
£4,413 GBP
View
Retailer 12
-
£4,556 GBP
View
Price last confirmed 16 days ago
B
Retailer 13
-
£4,562 GBP
View
B
Retailer 14
-
£4,762 GBP
View
Retailer 15
-
£4,808 GBP
View
Price last confirmed 22 days ago
B
Retailer 16
-
£6,422 GBP
View
Most Expensive
NZ Jewellers
77b0066d-b6ed-4ae0-b6ea-1012e9fd1cc9 · Oct 21
£7,290 GBP
$9,812 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from £3,401 GBPSave up to £3,021 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
£3,401 GBP