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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 1329474770

Certificate GIA 1329474770

Diamond specifications and retailer prices

From £849 GBP
HK$8,900 HKD
As of November 1, 2026
Save £1,952 GBP (70%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,800 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1329474770. Listed at 21 retailers as of October 30, 2026, with prices from £849 to £2,800, a £1,952 spread on the same certified stone. NZ Jewellers lists it at £2,800. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1329474770
Dimensions5.62 × 5.04 × 3.58 mm
L/W Ratio1.12
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Pinpoint, Natural, Extra Facet
Top View
5.62 mm5.04 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1329474770
Side View
Table 71.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 71.1%

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: £2,800 GBP|Low: £861 GBP|High: £2,800 GBP|Avg: £1,345 GBP
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
November 2, 2026
Retailer 8£863 GBP
Retailer 5£1,060 GBP
Retailer 4£1,077 GBP
Retailer 9£1,120 GBP
Retailer 12£1,148 GBP
Retailer 7£1,201 GBP
Retailer 11£1,281 GBP
Retailer 13£1,325 GBP
Retailer 14£1,373 GBP
Retailer 3£1,398 GBP
Retailer 10£1,488 GBP
Retailer 6£1,498 GBP
Retailer 2£2,011 GBP
NZ Jewellers£2,800 GBP

33 data points across 14 retailers

21 retailers£849 GBP to £2,800 GBP

A
Cheapest Retailer
-
£849 GBP
HK$8,900 HKD
A
Retailer 2
-
£863 GBP
₹110,310 INR
View
B+
Retailer 3
-
£1,060 GBP
$1,422 USD
View
Final sale: no returns
B+
Retailer 4
-
£1,064 GBP
$1,428 USD
View
B+
Retailer 5
-
£1,066 GBP
$1,430 USD
View
B+
Retailer 6
-
£1,077 GBP
$1,445 USD
View
B+
Retailer 7
-
£1,120 GBP
View
B+
Retailer 8
-
£1,124 GBP
$1,509 USD
View
B+
Retailer 9
-
£1,148 GBP
$1,541 USD
View
B+
Retailer 10
-
£1,148 GBP
$1,541 USD
View
B+
Retailer 11
-
£1,184 GBP
SGD 2,148 SGD
View
B+
Retailer 12
-
£1,201 GBP
$1,612 USD
View
B+
Retailer 13
-
£1,249 GBP
$1,677 USD
View
B+
Retailer 14
-
£1,281 GBP
View
B+
Retailer 15
-
£1,325 GBP
$1,778 USD
View
B+
Retailer 16
-
£1,373 GBP
$1,843 USD
View
Retailer 17
-
£1,398 GBP
ZAR 30,307 ZAR
View
Price last confirmed 7 days ago
B
Retailer 18
-
£1,488 GBP
€1,902 EUR
View
Retailer 19
-
£1,498 GBP
A$3,093 AUD
View
Price last confirmed 27 days ago
B
Retailer 20
-
£2,011 GBP
View
Most Expensive
C
NZ Jewellers
f6a58fcb-f161-46d7-bc39-c3b7cdcee2c2 · Oct 30
£2,800 GBP
$3,758 USD
View
20 more retailers have this diamond
Prices start from £849 GBPSave up to £1,952 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
£849 GBP