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Radiant|Natural|GIA

1.00ct H SI2 Radiant Natural Diamond

ID • H/SI2 • GIA 5526641037

Certificate GIA 5526641037

Diamond specifications and retailer prices

From £926 GBP
As of November 6, 2026
Save £1,945 GBP (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,870 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5526641037. Listed at 19 retailers as of November 5, 2026, with prices from £926 to £2,870, a £1,945 spread on the same certified stone. NZ Jewellers lists it at £2,870. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle55.35°
OriginNatural
Grading LabGIA
CertificateGIA 5526641037
Dimensions6.60 × 5.12 × 3.58 mm
L/W Ratio1.29
Top View
6.60 mm5.12 mm1.00 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5526641037
Side View
Table 65.0%Crown 42.2°Girdle: MED-THKPavilion 55.35°Culet: NoneDepth 69.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,305 GBP|Low: £926 GBP|High: £2,072 GBP|Avg: £1,305 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3£926 GBP
Retailer 9£927 GBP
Retailer 2£1,086 GBP
Retailer 7£1,099 GBP
Retailer 8£1,266 GBP
Retailer 5£1,286 GBP
Retailer 10£1,298 GBP
Retailer 1£1,305 GBP
Retailer 4£1,597 GBP
Retailer 6£2,056 GBP

33 data points across 10 retailers

19 retailers£926 GBP to £2,870 GBP

A
Cheapest Retailer
-
£926 GBP
A
Retailer 2
-
£927 GBP
View
A
Retailer 3
-
£1,086 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,091 GBP
View
A
Retailer 5
-
£1,099 GBP
View
A
Retailer 6
-
£1,177 GBP
View
Retailer 7
-
£1,177 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£1,218 GBP
View
A
Retailer 9
-
£1,231 GBP
View
A
Retailer 10
-
£1,266 GBP
View
A
Retailer 11
-
£1,278 GBP
View
A
Retailer 12
-
£1,286 GBP
View
A
Retailer 13
-
£1,298 GBP
View
A
Retailer 14
-
£1,304 GBP
View
A
Retailer 15
-
£1,305 GBP
View
A
Retailer 16
-
£1,357 GBP
View
B+
Retailer 17
-
£1,597 GBP
View
B
Retailer 18
-
£2,056 GBP
View
Most Expensive
B
NZ Jewellers
051756fa-3e9c-4e60-8593-c5e15a394e6d · Nov 5
£2,870 GBP
$3,842 USD
View
18 more retailers have this diamond
Prices start from £926 GBPSave up to £1,945 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
£926 GBP