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Radiant|Natural|GIA

1.00ct H SI2 Radiant Natural Diamond

GD • H/SI2 • GIA 5566009777

Certificate GIA 5566009777

Diamond specifications and retailer prices

From £928 GBP
As of November 6, 2026
Save £2,113 GBP (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,041 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5566009777. Listed at 15 retailers as of November 5, 2026, with prices from £928 to £3,041, a £2,113 spread on the same certified stone. NZ Jewellers lists it at £3,041. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5566009777
Dimensions6.43 × 4.92 × 3.45 mm
L/W Ratio1.31
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Cloud, Needle, Pinpoint, Indented Natural
Top View
6.43 mm4.92 mm1.00 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5566009777
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.2%

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: £3,041 GBP|Low: £928 GBP|High: £3,297 GBP|Avg: £1,545 GBP|-7.8%
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
November 7, 2026
Retailer 8£928 GBP
Retailer 14£981 GBP
Retailer 13£1,136 GBP
Retailer 12£1,247 GBP
Retailer 7£1,299 GBP
Retailer 3£1,304 GBP
Retailer 6£1,344 GBP
Retailer 9£1,349 GBP
Retailer 4£1,367 GBP
Retailer 11£1,375 GBP
Retailer 2£1,383 GBP
Retailer 5£1,439 GBP
Retailer 10£1,693 GBP
Retailer 15£2,178 GBP
NZ Jewellers£3,041 GBP

22 data points across 15 retailers

15 retailers£928 GBP to £3,041 GBP

A
Cheapest Retailer
-
£928 GBP
A
Retailer 2
-
£981 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,136 GBP
View
B+
Retailer 4
-
£1,247 GBP
View
Retailer 5
-
£1,299 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£1,304 GBP
View
B+
Retailer 7
-
£1,344 GBP
View
B+
Retailer 8
-
£1,349 GBP
View
B+
Retailer 9
-
£1,367 GBP
View
B+
Retailer 10
-
£1,375 GBP
View
B+
Retailer 11
-
£1,383 GBP
View
B+
Retailer 12
-
£1,439 GBP
View
B+
Retailer 13
-
£1,693 GBP
View
B
Retailer 14
-
£2,178 GBP
View
Most Expensive
C
NZ Jewellers
d06a8724-a644-4d01-b210-02f3d99de635 · Nov 5
£3,041 GBP
$4,070 USD
View
14 more retailers have this diamond
Prices start from £928 GBPSave up to £2,113 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
£928 GBP