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Radiant|Natural|GIA

1.00ct H I1 Radiant Natural Diamond

EX • H/I1 • GIA 1323586963

Certificate GIA 1323586963

Diamond specifications and retailer prices

From £1,135 GBP
$1,521 USD
As of November 1, 2026
Save £2,219 GBP (66%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,354 GBP at NZ Jewellers · As of October 30, 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 I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1323586963. Listed at 8 retailers as of October 30, 2026, with prices from £1,135 to £3,354, a £2,219 spread on the same certified stone. NZ Jewellers lists it at £3,354. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
H
Colour
I1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1323586963
Dimensions7.42 × 5.05 × 3.08 mm
L/W Ratio1.47
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
7.42 mm5.05 mm1.00 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1323586963
Side View
Table 73.0%CrownGirdlePavilionCulet: NoneDepth 60.9%

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 1
Current: £3,354 GBP|Low: £967 GBP|High: £3,553 GBP|Avg: £1,548 GBP|-5.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10£967 GBP
Retailer 8£1,135 GBP
Retailer 7£1,225 GBP
Retailer 4£1,246 GBP
Retailer 6£1,246 GBP
Retailer 9£1,271 GBP
Retailer 5£1,303 GBP
Retailer 3£1,437 GBP
Retailer 2£1,878 GBP
NZ Jewellers£3,354 GBP

9 data points across 10 retailers

8 retailers£1,135 GBP to £3,354 GBP

A
Cheapest Retailer
-
£1,135 GBP
$1,521 USD
A
Retailer 2
-
£1,225 GBP
$1,642 USD
View
A
Retailer 3
-
£1,246 GBP
$1,669 USD
View
A
Retailer 4
-
£1,246 GBP
$1,669 USD
View
B+
Retailer 5
-
£1,303 GBP
$1,746 USD
View
B+
Retailer 6
-
£1,437 GBP
$1,926 USD
View
B
Retailer 7
-
£1,878 GBP
€2,397 EUR
View
Most Expensive
C
NZ Jewellers
98e81ba8-406d-4e4d-a732-2cd77ae98dd5 · Oct 30
£3,354 GBP
$4,494 USD
View
7 more retailers have this diamond
Prices start from £1,135 GBPSave up to £2,219 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
£1,135 GBP