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Round|Natural|GIA

1.00ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1565467226

Certificate GIA 1565467226

Diamond specifications and retailer prices

From £1,951 GBP
As of November 6, 2026
Save £2,442 GBP (56%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £4,393 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565467226. Listed at 27 retailers as of November 5, 2026, with prices from £1,951 to £4,393, a £2,442 spread on the same certified stone. NZ Jewellers lists it at £4,393. 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

1.00
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1565467226
Dimensions6.44 × 6.40 × 3.88 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural, Natural
Top View
6.44 mm6.40 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565467226
Side View
Table 61.0%Crown 33°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.4%

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 6
Current: £4,393 GBP|Low: £1,931 GBP|High: £4,393 GBP|Avg: £2,751 GBP
NZ Jewellers
Retailer 2
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Retailer 27
November 6, 2026
Retailer 5£1,951 GBP
Retailer 24£1,952 GBP
Retailer 11£2,182 GBP
Retailer 3£2,185 GBP
Retailer 17£2,238 GBP
Retailer 14£2,327 GBP
Retailer 25£2,397 GBP
Retailer 4£2,410 GBP
Retailer 2£2,412 GBP
Retailer 10£2,436 GBP
Retailer 7£2,521 GBP
Retailer 9£2,521 GBP
Retailer 12£2,540 GBP
Retailer 21£2,593 GBP
Retailer 8£2,619 GBP
Retailer 6£2,629 GBP
Retailer 13£2,713 GBP
Retailer 15£2,743 GBP
Retailer 20£2,781 GBP
Retailer 26£2,851 GBP
Retailer 16£2,909 GBP
Retailer 22£2,926 GBP
Retailer 23£3,077 GBP
Retailer 18£3,671 GBP
Retailer 19£3,774 GBP
Retailer 27£4,205 GBP
NZ Jewellers£4,393 GBP

19 data points across 27 retailers

27 retailers£1,951 GBP to £4,393 GBP

A
Cheapest Retailer
-
£1,951 GBP
A
Retailer 2
-
£1,952 GBP
View
B+
Retailer 3
-
£2,182 GBP
View
B+
Retailer 4
-
£2,185 GBP
View
B+
Retailer 5
-
£2,238 GBP
View
B+
Retailer 6
-
£2,327 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,397 GBP
View
B+
Retailer 8
-
£2,410 GBP
View
B+
Retailer 9
-
£2,412 GBP
View
B+
Retailer 10
-
£2,436 GBP
View
B+
Retailer 11
-
£2,521 GBP
View
Retailer 12
-
£2,521 GBP
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£2,540 GBP
View
B+
Retailer 14
-
£2,593 GBP
View
B+
Retailer 15
-
£2,619 GBP
View
B+
Retailer 16
-
£2,629 GBP
View
B+
Retailer 17
-
£2,713 GBP
View
B+
Retailer 18
-
£2,743 GBP
View
B+
Retailer 19
-
£2,781 GBP
View
B+
Retailer 20
-
£2,851 GBP
View
B+
Retailer 21
-
£2,909 GBP
View
B+
Retailer 22
-
£2,926 GBP
View
B+
Retailer 23
-
£3,077 GBP
View
B
Retailer 24
-
£3,671 GBP
View
B
Retailer 25
-
£3,774 GBP
View
B
Retailer 26
-
£4,205 GBP
View
Most Expensive
B
NZ Jewellers
d9ae7834-46e9-4fa4-863e-0f674b15264c · Nov 5
£4,393 GBP
$5,880 USD
View
26 more retailers have this diamond
Prices start from £1,951 GBPSave up to £2,442 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
1.00ct Round
£1,951 GBP