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Radiant|Natural|GIA

1.00ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 5553300754

Certificate GIA 5553300754

Diamond specifications and retailer prices

From £1,957 GBP
As of November 6, 2026
Save £2,245 GBP (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,202 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553300754. Listed at 16 retailers as of November 5, 2026, with prices from £1,957 to £4,202, a £2,245 spread on the same certified stone. NZ Jewellers lists it at £4,202. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle31.44°
OriginNatural
Grading LabGIA
CertificateGIA 5553300754
Dimensions7.44 × 5.14 × 2.94 mm
L/W Ratio1.45
Girdle conditionVery Thick
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.44 mm5.14 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553300754
Side View
Table 74.0%Crown 40.8°GirdlePavilion 31.44°Culet: NoneDepth 57.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,495 GBP|Low: £2,269 GBP|High: £4,081 GBP|Avg: £2,769 GBP|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7£2,269 GBP
Retailer 2£2,339 GBP
Retailer 1£2,495 GBP
Retailer 6£2,586 GBP
Retailer 3£2,806 GBP
Retailer 4£2,944 GBP
Retailer 5£4,022 GBP

40 data points across 7 retailers

16 retailers£1,957 GBP to £4,202 GBP

B+
Cheapest Retailer
-
£1,957 GBP
B+
Retailer 2
-
£2,137 GBP
View
B+
Retailer 3
-
£2,185 GBP
View
Retailer 4
-
£2,185 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£2,205 GBP
View
B+
Retailer 6
-
£2,269 GBP
View
B+
Retailer 7
-
£2,339 GBP
View
B+
Retailer 8
-
£2,495 GBP
View
B+
Retailer 9
-
£2,496 GBP
View
B
Retailer 10
-
£2,521 GBP
View
Retailer 11
-
£2,586 GBP
View
Price last confirmed 34 days ago
Retailer 12
-
£2,798 GBP
View
Price last confirmed 15 days ago
B
Retailer 13
-
£2,806 GBP
View
B
Retailer 14
-
£2,944 GBP
View
B
Retailer 15
-
£4,022 GBP
View
Most Expensive
B
NZ Jewellers
9f8ec8e8-b940-429e-b147-a0aa32fbd559 · Nov 5
£4,202 GBP
$5,624 USD
View
15 more retailers have this diamond
Prices start from £1,957 GBPSave up to £2,245 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.

B+
1.00ct Radiant
£1,957 GBP