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Round|Natural|GIA

1.01ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 5566262655

Certificate GIA 5566262655

Diamond specifications and retailer prices

From £1,478 GBP
HK$15,500 HKD
As of November 1, 2026
Save £2,137 GBP (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,105 GBP at NZ Jewellers · As of October 17, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566262655. Listed at 17 retailers as of October 28, 2026, with a 145% 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5566262655
Dimensions6.41 × 6.36 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle
Top View
6.41 mm6.36 mm1.01 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5566262655
Side View
Table 60.0%Crown 35°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 62.1%

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 1
Current: £1,548 GBP|Low: £1,478 GBP|High: £3,629 GBP|Avg: £2,265 GBP|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£1,478 GBP
Retailer 1£1,548 GBP
Retailer 9£1,712 GBP
Retailer 3£1,785 GBP
Retailer 10£1,812 GBP
Retailer 2£1,964 GBP
Retailer 4£2,069 GBP
Retailer 5£2,441 GBP
Retailer 6£3,440 GBP
Retailer 8£3,615 GBP

26 data points across 10 retailers

17 retailers£1,478 GBP to £3,615 GBP

A
Cheapest Retailer
-
£1,478 GBP
HK$15,500 HKD
A
Retailer 2
-
£1,548 GBP
₹197,836 INR
View
A
Retailer 3
-
£1,712 GBP
SGD 3,105 SGD
View
A
Retailer 4
-
£1,785 GBP
View
A
Retailer 5
-
£1,812 GBP
$2,431 USD
View
Final sale: no returns
A
Retailer 6
-
£1,828 GBP
$2,453 USD
View
Retailer 7
-
£1,964 GBP
$2,635 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
£2,012 GBP
$2,700 USD
View
Retailer 9
-
£2,039 GBP
$2,736 USD
View
Price last confirmed 18 days ago
B+
Retailer 10
-
£2,054 GBP
SGD 3,725 SGD
View
B+
Retailer 11
-
£2,069 GBP
$2,776 USD
View
B+
Retailer 12
-
£2,069 GBP
View
Retailer 13
-
£2,265 GBP
$3,040 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
£2,441 GBP
€3,120 EUR
View
B
Retailer 15
-
£3,440 GBP
View
B
Retailer 16
-
£3,615 GBP
View
Most Expensive
NZ Jewellers
4fc2c27d-c52b-408c-8ac9-6320ce64ed92 · Oct 17
£4,105 GBP
$5,509 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from £1,478 GBPSave up to £2,137 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
£1,478 GBP