Round|Natural|GIA

1.01ct E SI2 Round Natural Diamond

ID • E/SI2 • GIA 11

Certificate GIA 11

Diamond specifications and retailer prices

From £1,378 GBP
As of November 4, 2026
Save £3,100 GBP (69%) vs most expensive(unlock to see where)
35 retailers carry this diamond
Most expensive: £4,479 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 35 retailers as of November 4, 2026, with prices from £1,378 to £4,479, a £3,100 spread on the same certified stone. NZ Jewellers lists it at £4,479. 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

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 11
Dimensions6.36 × 6.40 × 3.98 mm
L/W Ratio1.01
Top View
6.36 mm6.40 mm1.01 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 11
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £4,479 GBP|Low: £1,378 GBP|High: £4,479 GBP|Avg: £1,992 GBP|+26.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4£1,378 GBP
Retailer 6£1,534 GBP
Retailer 7£1,739 GBP
Retailer 9£1,972 GBP
Retailer 2£2,142 GBP
Retailer 8£2,142 GBP
Retailer 10£2,149 GBP
Retailer 3£2,225 GBP
Retailer 5£2,472 GBP
NZ Jewellers£4,479 GBP

30 data points across 10 retailers

35 retailers£1,378 GBP to £4,479 GBP

A
Cheapest Retailer
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£1,378 GBP
Retailer 2
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£1,531 GBP
View
Price last confirmed 60 days ago
A
Retailer 3
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£1,534 GBP
View
Retailer 4
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£1,591 GBP
View
Price last confirmed 16 days ago
Retailer 5
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£1,614 GBP
View
Price last confirmed 29 days ago
Retailer 6
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£1,614 GBP
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Price last confirmed 28 days ago
Retailer 7
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£1,627 GBP
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Price last confirmed 15 days ago
Retailer 8
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£1,632 GBP
View
Price last confirmed 36 days ago
Retailer 9
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£1,632 GBP
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Price last confirmed 41 days ago
Retailer 10
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£1,660 GBP
View
Price last confirmed 60 days ago
Retailer 11
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£1,662 GBP
View
Price last confirmed 41 days ago
Retailer 12
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£1,707 GBP
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Price last confirmed 38 days ago
Retailer 13
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£1,711 GBP
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Price last confirmed 22 days ago
Retailer 14
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£1,722 GBP
View
Price last confirmed 60 days ago
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Retailer 15
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£1,739 GBP
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Retailer 16
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£1,739 GBP
View
Price last confirmed 38 days ago
A
Retailer 17
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£1,972 GBP
View
Retailer 18
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£2,142 GBP
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Price last confirmed 8 days ago
Retailer 19
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£2,142 GBP
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Price last confirmed 9 days ago
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Retailer 20
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£2,142 GBP
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A
Retailer 21
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£2,142 GBP
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A
Retailer 22
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£2,149 GBP
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Retailer 23
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£2,225 GBP
View
A
Retailer 24
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£2,225 GBP
View
Retailer 25
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£2,225 GBP
View
Price last confirmed 8 days ago
A
Retailer 26
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£2,230 GBP
View
B+
Retailer 27
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£2,472 GBP
View
B+
Retailer 28
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£2,472 GBP
View
Retailer 29
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£3,375 GBP
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Price last confirmed 34 days ago
Retailer 30
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£3,375 GBP
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Price last confirmed 28 days ago
Retailer 31
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£3,402 GBP
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Price last confirmed 17 days ago
Retailer 32
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£3,410 GBP
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Price last confirmed 39 days ago
Retailer 33
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£3,410 GBP
View
Price last confirmed 41 days ago
Retailer 34
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£3,475 GBP
View
Price last confirmed 41 days ago
Most Expensive
B
NZ Jewellers
82fcb944-5483-4537-aed4-a2cb326df4b8 · Nov 5
£4,479 GBP
$6,028 USD
View
34 more retailers have this diamond
Prices start from £1,378 GBPSave up to £3,100 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 Round
£1,378 GBP