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Marquise|Natural|GIA

1.01ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 5242026607

Certificate GIA 5242026607

Diamond specifications and retailer prices

From £1,698 GBP
As of November 5, 2026
Save £2,183 GBP (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,266 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct 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 5242026607. Listed at 14 retailers as of November 2, 2026, with a 129% 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

1.01
Carat
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242026607
Dimensions9.62 × 5.20 × 3.43 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
9.62 mm5.20 mm1.01 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242026607
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,655 GBP|Low: £1,698 GBP|High: £4,143 GBP|Avg: £2,382 GBP|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6£1,698 GBP
Retailer 12£1,750 GBP
Retailer 8£1,827 GBP
Retailer 9£1,875 GBP
Retailer 3£1,941 GBP
Retailer 11£2,028 GBP
Retailer 7£2,143 GBP
Retailer 10£2,192 GBP
Retailer 5£2,201 GBP
Retailer 1£2,655 GBP
Retailer 4£3,543 GBP
Retailer 2£3,881 GBP

38 data points across 12 retailers

14 retailers£1,698 GBP to £3,881 GBP

A
Cheapest Retailer
-
£1,698 GBP
A
Retailer 2
-
£1,750 GBP
View
A
Retailer 3
-
£1,827 GBP
View
A
Retailer 4
-
£1,875 GBP
View
A
Retailer 5
-
£1,941 GBP
View
Final sale: no returns
A
Retailer 6
-
£2,028 GBP
View
A
Retailer 7
-
£2,143 GBP
View
A
Retailer 8
-
£2,192 GBP
View
A
Retailer 9
-
£2,201 GBP
View
A
Retailer 10
-
£2,336 GBP
View
A
Retailer 11
-
£2,655 GBP
View
Retailer 12
-
£3,543 GBP
View
Price last confirmed 10 days ago
B+
Retailer 13
-
£3,881 GBP
View
Most Expensive
NZ Jewellers
1568b704-fd79-45fd-b888-8b74cff31ef2 · Sep 30
£4,266 GBP
$5,741 USD
View
Price last confirmed 36 days ago
13 more retailers have this diamond
Prices start from £1,698 GBPSave up to £2,183 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.

A
1.01ct Marquise
£1,698 GBP