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Radiant|Natural|GIA

1.00ct F SI1 Radiant Natural Diamond

GD • F/SI1 • GIA 7551618263

Certificate GIA 7551618263

Diamond specifications and retailer prices

From £1,625 GBP
As of November 4, 2026
Save £2,651 GBP (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,276 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7551618263. Listed at 15 retailers as of November 4, 2026, with prices from £1,625 to £4,276, a £2,651 spread on the same certified stone. NZ Jewellers lists it at £4,276. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551618263
Dimensions6.77 × 4.99 × 3.43 mm
L/W Ratio1.36
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.77 mm4.99 mm1.00 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551618263
Side View
Table 72.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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: £4,276 GBP|Low: £1,411 GBP|High: £4,276 GBP|Avg: £2,274 GBP|+1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 12£1,625 GBP
Retailer 8£1,674 GBP
Retailer 7£1,694 GBP
Retailer 15£1,853 GBP
Retailer 17£1,853 GBP
Retailer 16£1,938 GBP
Retailer 2£1,984 GBP
Retailer 3£2,016 GBP
Retailer 4£2,129 GBP
Retailer 5£2,129 GBP
Retailer 14£2,137 GBP
Retailer 6£2,197 GBP
Retailer 9£2,337 GBP
Retailer 10£2,380 GBP
Retailer 11£2,496 GBP
Retailer 13£3,582 GBP
NZ Jewellers£4,276 GBP

38 data points across 17 retailers

15 retailers£1,625 GBP to £4,276 GBP

A
Cheapest Retailer
-
£1,625 GBP
B+
Retailer 2
-
£1,853 GBP
View
B+
Retailer 3
-
£1,938 GBP
View
B+
Retailer 4
-
£1,950 GBP
View
B+
Retailer 5
-
£1,984 GBP
View
B+
Retailer 6
-
£2,016 GBP
View
B
Retailer 7
-
£2,129 GBP
View
B
Retailer 8
-
£2,129 GBP
View
B
Retailer 9
-
£2,137 GBP
View
B
Retailer 10
-
£2,197 GBP
View
B
Retailer 11
-
£2,337 GBP
View
B+
Retailer 12
-
£2,380 GBP
View
B
Retailer 13
-
£2,496 GBP
View
B
Retailer 14
-
£3,582 GBP
View
Most Expensive
C
NZ Jewellers
c78a5c99-96e6-47ea-adab-c1f2d039ee20 · Nov 5
£4,276 GBP
$5,723 USD
View
14 more retailers have this diamond
Prices start from £1,625 GBPSave up to £2,651 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 Radiant
£1,625 GBP