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Marquise|Natural|GIA

1.20ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 6551655701

Certificate GIA 6551655701

Diamond specifications and retailer prices

From £3,644 GBP
As of November 4, 2026
Save £4,069 GBP (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £7,713 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 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 6551655701. Listed at 19 retailers as of November 4, 2026, with prices from £3,644 to £7,713, a £4,069 spread on the same certified stone. NZ Jewellers lists it at £7,713. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551655701
Dimensions10.42 × 5.53 × 3.45 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
10.42 mm5.53 mm1.20 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551655701
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.4%

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: £7,713 GBP|Low: £3,112 GBP|High: £7,713 GBP|Avg: £4,676 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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 12£3,112 GBP
Retailer 9£3,644 GBP
Retailer 7£3,670 GBP
Retailer 17£3,670 GBP
Retailer 6£3,889 GBP
Retailer 11£4,127 GBP
Retailer 19£4,163 GBP
Retailer 5£4,178 GBP
Retailer 8£4,178 GBP
Retailer 18£4,178 GBP
Retailer 15£4,381 GBP
Retailer 20£4,390 GBP
Retailer 2£4,534 GBP
Retailer 14£4,719 GBP
Retailer 4£4,821 GBP
Retailer 21£4,878 GBP
Retailer 13£5,011 GBP
Retailer 10£5,085 GBP
Retailer 3£6,749 GBP
Retailer 16£6,775 GBP
NZ Jewellers£7,713 GBP

28 data points across 21 retailers

19 retailers£3,644 GBP to £7,713 GBP

B+
Cheapest Retailer
-
£3,644 GBP
B+
Retailer 2
-
£3,670 GBP
View
B+
Retailer 3
-
£3,670 GBP
View
B+
Retailer 4
-
£3,889 GBP
View
B+
Retailer 5
-
£4,127 GBP
View
B+
Retailer 6
-
£4,163 GBP
View
B+
Retailer 7
-
£4,178 GBP
View
B+
Retailer 8
-
£4,178 GBP
View
Retailer 9
-
£4,178 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£4,381 GBP
View
B+
Retailer 11
-
£4,390 GBP
View
B+
Retailer 12
-
£4,534 GBP
View
B
Retailer 13
-
£4,821 GBP
View
B
Retailer 14
-
£4,878 GBP
View
B
Retailer 15
-
£5,011 GBP
View
Retailer 16
-
£5,085 GBP
View
Price last confirmed 14 days ago
B
Retailer 17
-
£6,749 GBP
View
B
Retailer 18
-
£6,775 GBP
View
Most Expensive
B
NZ Jewellers
c70d2820-4ca9-43c3-b1ea-2835b270fb99 · Nov 5
£7,713 GBP
$10,381 USD
View
18 more retailers have this diamond
Prices start from £3,644 GBPSave up to £4,069 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
£3,644 GBP