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Radiant|Natural|GIA

1.00ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 2556573529

Certificate GIA 2556573529

Diamond specifications and retailer prices

From £1,316 GBP
As of November 6, 2026
Save £2,407 GBP (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,723 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556573529. Listed at 20 retailers as of November 5, 2026, with prices from £1,316 to £3,723, a £2,407 spread on the same certified stone. NZ Jewellers lists it at £3,723. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556573529
Dimensions6.87 × 4.90 × 3.24 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
6.87 mm4.90 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556573529
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.2%

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: £3,723 GBP|Low: £1,316 GBP|High: £3,790 GBP|Avg: £1,995 GBP|-1.8%
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
November 7, 2026
Retailer 16£1,316 GBP
Retailer 14£1,397 GBP
Retailer 8£1,561 GBP
Retailer 5£1,572 GBP
Retailer 6£1,609 GBP
Retailer 10£1,756 GBP
Retailer 2£1,763 GBP
Retailer 4£1,781 GBP
Retailer 11£1,802 GBP
Retailer 12£1,848 GBP
Retailer 17£1,885 GBP
Retailer 13£1,920 GBP
Retailer 15£2,017 GBP
Retailer 19£2,038 GBP
Retailer 18£2,061 GBP
Retailer 9£2,064 GBP
Retailer 3£2,173 GBP
Retailer 7£3,111 GBP
NZ Jewellers£3,723 GBP

17 data points across 19 retailers

20 retailers£1,316 GBP to £3,723 GBP

A
Cheapest Retailer
-
£1,316 GBP
A
Retailer 2
-
£1,397 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,561 GBP
View
A
Retailer 4
-
£1,572 GBP
View
A
Retailer 5
-
£1,609 GBP
View
B+
Retailer 6
-
£1,756 GBP
View
B+
Retailer 7
-
£1,763 GBP
View
A
Retailer 8
-
£1,781 GBP
View
Retailer 9
-
£1,802 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£1,848 GBP
View
B+
Retailer 11
-
£1,885 GBP
View
B+
Retailer 12
-
£1,920 GBP
View
B+
Retailer 13
-
£2,017 GBP
View
B+
Retailer 14
-
£2,038 GBP
View
B+
Retailer 15
-
£2,061 GBP
View
B+
Retailer 16
-
£2,064 GBP
View
B+
Retailer 17
-
£2,173 GBP
View
Retailer 18
-
£2,245 GBP
View
Price last confirmed 31 days ago
B
Retailer 19
-
£3,111 GBP
View
Most Expensive
B
NZ Jewellers
588a480b-b2d6-4fdf-9595-84da5724afaa · Nov 5
£3,723 GBP
$4,983 USD
View
19 more retailers have this diamond
Prices start from £1,316 GBPSave up to £2,407 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
£1,316 GBP