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Radiant|Natural|GIA

1.00ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 7526288337

Certificate GIA 7526288337

Diamond specifications and retailer prices

From £1,623 GBP
As of November 4, 2026
Save £2,246 GBP (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,869 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7526288337. Listed at 17 retailers as of November 4, 2026, with prices from £1,623 to £3,869, a £2,246 spread on the same certified stone. NZ Jewellers lists it at £3,869. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7526288337
Dimensions6.38 × 5.13 × 3.53 mm
L/W Ratio1.24
Culet sizeNone
Cert comments
Additional clouds are not shown.
Top View
6.38 mm5.13 mm1.00 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7526288337
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.9%

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 4
Current: £3,869 GBP|Low: £1,558 GBP|High: £3,869 GBP|Avg: £2,085 GBP|+3.1%
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
November 7, 2026
Retailer 6£1,623 GBP
Retailer 5£1,672 GBP
Retailer 3£1,707 GBP
Retailer 4£1,733 GBP
Retailer 9£1,795 GBP
Retailer 7£1,838 GBP
Retailer 14£1,851 GBP
Retailer 16£1,851 GBP
Retailer 15£1,936 GBP
Retailer 8£1,955 GBP
Retailer 2£1,957 GBP
Retailer 13£2,135 GBP
Retailer 11£2,259 GBP
Retailer 10£2,298 GBP
Retailer 12£3,233 GBP
NZ Jewellers£3,869 GBP

23 data points across 16 retailers

17 retailers£1,623 GBP to £3,869 GBP

B+
Cheapest Retailer
-
£1,623 GBP
B+
Retailer 2
-
£1,672 GBP
View
Retailer 3
-
£1,707 GBP
View
Price last confirmed 10 days ago
B+
Retailer 4
-
£1,733 GBP
View
B+
Retailer 5
-
£1,795 GBP
View
B+
Retailer 6
-
£1,838 GBP
View
Retailer 7
-
£1,851 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£1,851 GBP
View
B
Retailer 9
-
£1,936 GBP
View
B
Retailer 10
-
£1,955 GBP
View
B
Retailer 11
-
£1,957 GBP
View
Retailer 12
-
£2,122 GBP
View
Price last confirmed 31 days ago
B
Retailer 13
-
£2,135 GBP
View
B
Retailer 14
-
£2,259 GBP
View
B
Retailer 15
-
£2,298 GBP
View
B
Retailer 16
-
£3,233 GBP
View
Most Expensive
B
NZ Jewellers
1fbb6b29-668e-4825-9ee0-e826ae771ee9 · Nov 5
£3,869 GBP
$5,178 USD
View
16 more retailers have this diamond
Prices start from £1,623 GBPSave up to £2,246 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
£1,623 GBP