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Radiant|Natural|GIA

1.00ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 6551612359

Certificate GIA 6551612359

Diamond specifications and retailer prices

From £1,124 GBP
As of November 6, 2026
Save £2,061 GBP (65%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,185 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 G 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 6551612359. Listed at 22 retailers as of November 5, 2026, with prices from £1,124 to £3,185, a £2,061 spread on the same certified stone. NZ Jewellers lists it at £3,185. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551612359
Dimensions6.54 × 4.88 × 3.37 mm
L/W Ratio1.34
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle, Indented Natural
Top View
6.54 mm4.88 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551612359
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.0%

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 6
Current: £3,185 GBP|Low: £1,124 GBP|High: £3,342 GBP|Avg: £1,760 GBP|-4.7%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 7, 2026
Retailer 17£1,124 GBP
Retailer 15£1,191 GBP
Retailer 8£1,336 GBP
Retailer 5£1,342 GBP
Retailer 6£1,376 GBP
Retailer 2£1,378 GBP
Retailer 4£1,523 GBP
Retailer 10£1,573 GBP
Retailer 14£1,579 GBP
Retailer 11£1,588 GBP
Retailer 18£1,626 GBP
Retailer 13£1,639 GBP
Retailer 16£1,674 GBP
Retailer 20£1,742 GBP
Retailer 12£1,762 GBP
Retailer 9£1,798 GBP
Retailer 3£1,859 GBP
Retailer 19£1,922 GBP
Retailer 7£2,661 GBP
NZ Jewellers£3,185 GBP

17 data points across 20 retailers

22 retailers£1,124 GBP to £3,185 GBP

A
Cheapest Retailer
-
£1,124 GBP
A
Retailer 2
-
£1,191 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,336 GBP
View
A
Retailer 4
-
£1,342 GBP
View
A
Retailer 5
-
£1,376 GBP
View
A
Retailer 6
-
£1,378 GBP
View
A
Retailer 7
-
£1,523 GBP
View
A
Retailer 8
-
£1,573 GBP
View
A
Retailer 9
-
£1,579 GBP
View
Retailer 10
-
£1,588 GBP
View
Price last confirmed 9 days ago
A
Retailer 11
-
£1,626 GBP
View
A
Retailer 12
-
£1,639 GBP
View
A
Retailer 13
-
£1,674 GBP
View
B+
Retailer 14
-
£1,742 GBP
View
Retailer 15
-
£1,762 GBP
View
Price last confirmed 10 days ago
B+
Retailer 16
-
£1,798 GBP
View
B+
Retailer 17
-
£1,859 GBP
View
Retailer 18
-
£1,881 GBP
View
Price last confirmed 62 days ago
B+
Retailer 19
-
£1,922 GBP
View
Retailer 20
-
£1,978 GBP
View
Price last confirmed 32 days ago
B
Retailer 21
-
£2,661 GBP
View
Most Expensive
B
NZ Jewellers
f1fd039f-f14a-4659-b6d9-3700532c28af · Nov 5
£3,185 GBP
$4,263 USD
View
21 more retailers have this diamond
Prices start from £1,124 GBPSave up to £2,061 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
£1,124 GBP