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Radiant|Natural|HRD

1.00ct I SI2 Radiant Natural Diamond

EX • I/SI2 • HRD 250000177094

Certificate HRD 250000177094

Diamond specifications and retailer prices

From £654 GBP
As of November 3, 2026
Save £1,397 GBP (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,051 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded I 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 HRD 250000177094. Listed at 7 retailers as of November 3, 2026, with prices from £654 to £2,051, a £1,397 spread on the same certified stone. NZ Jewellers lists it at £2,051. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 250000177094
Dimensions7.15 × 4.62 × 3.23 mm
L/W Ratio1.55
Top View
7.15 mm4.62 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateHRD 250000177094
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 70.5%

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 3
Current: £2,051 GBP|Low: £553 GBP|High: £2,101 GBP|Avg: £924 GBP|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8£604 GBP
Retailer 5£654 GBP
Retailer 7£654 GBP
Retailer 9£662 GBP
Retailer 6£679 GBP
Retailer 3£696 GBP
Retailer 4£755 GBP
Retailer 10£778 GBP
Retailer 11£1,124 GBP
Retailer 2£1,198 GBP
NZ Jewellers£2,051 GBP

14 data points across 11 retailers

7 retailers£654 GBP to £2,051 GBP

Retailer 1
-
£654 GBP
Price last confirmed 9 days ago
A
Retailer 2
-
£654 GBP
View
A
Retailer 3
-
£662 GBP
View
A
Retailer 4
-
£679 GBP
View
A
Retailer 5
-
£755 GBP
View
A
Retailer 6
-
£1,198 GBP
View
Most Expensive
B
NZ Jewellers
41c1ab89-8fc8-4cd5-b4e8-867210a4b0a6 · Nov 3
£2,051 GBP
$2,745 USD
View
6 more retailers have this diamond
Prices start from £654 GBPSave up to £1,397 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
£654 GBP