Round|Natural|GIA

1.01ct E SI1 Round Natural Diamond

ID • E/SI1 • GIA 56

Certificate GIA 56

Diamond specifications and retailer prices

From £1,791 GBP
As of November 4, 2026
Save £4,273 GBP (70%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £6,777 GBP at Aurelinne · As of September 7, 2026
View at Aurelinne

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 20 retailers as of November 4, 2026, with a 239% 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 56
Dimensions6.51 × 6.54 × 3.92 mm
L/W Ratio1.00
Top View
6.51 mm6.54 mm1.01 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 56
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 59.7%

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 4
Current: £2,271 GBP|Low: £1,854 GBP|High: £6,064 GBP|Avg: £3,025 GBP|-26.2%
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 3£1,861 GBP
Retailer 2£1,871 GBP
Retailer 8£1,914 GBP
Retailer 7£1,967 GBP
Retailer 6£2,043 GBP
Aurelinne£2,271 GBP
Retailer 9£2,666 GBP
Retailer 4£3,218 GBP
Retailer 5£4,114 GBP
Retailer 10£6,064 GBP

26 data points across 10 retailers

20 retailers£1,791 GBP to £6,064 GBP

A
Cheapest Retailer
-
£1,791 GBP
A
Retailer 2
-
£1,861 GBP
View
A
Retailer 3
-
£1,871 GBP
View
A
Retailer 4
-
£1,914 GBP
View
A
Retailer 5
-
£1,967 GBP
View
A
Retailer 6
-
£2,043 GBP
View
A
Retailer 7
-
£2,271 GBP
View
Retailer 8
-
£2,430 GBP
View
Price last confirmed 30 days ago
Retailer 9
-
£2,666 GBP
View
Price last confirmed 60 days ago
Retailer 10
-
£2,666 GBP
View
Price last confirmed 23 days ago
Retailer 11
-
£3,077 GBP
View
Price last confirmed 60 days ago
Retailer 12
-
£3,077 GBP
View
Price last confirmed 24 days ago
B+
Retailer 13
-
£3,218 GBP
View
B
Retailer 14
-
£4,114 GBP
View
Retailer 15
-
£4,645 GBP
View
Price last confirmed 23 days ago
B
Retailer 16
-
£4,797 GBP
View
B
Retailer 17
-
£5,207 GBP
View
Retailer 18
-
£5,873 GBP
View
Price last confirmed 60 days ago
B
Retailer 19
-
£6,064 GBP
View
Most Expensive
Aurelinne
4223806a-9c63-426d-bce4-c8fafefb5b04 · Sep 7
£6,777 GBP
$9,121 USD
View
Price last confirmed 60 days ago
19 more retailers have this diamond
Prices start from £1,791 GBPSave up to £4,273 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
£1,791 GBP