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Radiant|Natural|GIA

1.00ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 2557298043

Certificate GIA 2557298043

Diamond specifications and retailer prices

From £1,135 GBP
₹144,816 INR
As of November 1, 2026
Save £2,042 GBP (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,177 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 I 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 2557298043. Listed at 21 retailers as of October 30, 2026, with prices from £1,135 to £3,177, a £2,042 spread on the same certified stone. NZ Jewellers lists it at £3,177. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557298043
Dimensions6.76 × 4.84 × 3.34 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Pinpoint, Cloud
Top View
6.76 mm4.84 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557298043
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.1%

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: £3,177 GBP|Low: £1,135 GBP|High: £3,196 GBP|Avg: £1,736 GBP|-0.6%
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 2, 2026
Retailer 16£1,135 GBP
Retailer 2£1,192 GBP
Retailer 15£1,325 GBP
Retailer 4£1,373 GBP
Retailer 20£1,473 GBP
Retailer 19£1,511 GBP
Retailer 8£1,513 GBP
Retailer 9£1,520 GBP
Retailer 10£1,545 GBP
Retailer 11£1,590 GBP
Retailer 18£1,614 GBP
Retailer 14£1,657 GBP
Retailer 13£1,657 GBP
Retailer 12£1,661 GBP
Retailer 6£1,753 GBP
Retailer 17£1,785 GBP
Retailer 5£1,868 GBP
Retailer 7£1,934 GBP
Retailer 3£2,662 GBP
NZ Jewellers£3,177 GBP

19 data points across 20 retailers

21 retailers£1,135 GBP to £3,177 GBP

A
Cheapest Retailer
-
£1,135 GBP
₹144,816 INR
A
Retailer 2
-
£1,192 GBP
$1,597 USD
View
Final sale: no returns
A
Retailer 3
-
£1,325 GBP
$1,775 USD
View
A
Retailer 4
-
£1,373 GBP
$1,840 USD
View
A
Retailer 5
-
£1,473 GBP
View
B+
Retailer 6
-
£1,511 GBP
$2,024 USD
View
B+
Retailer 7
-
£1,513 GBP
$2,027 USD
View
B+
Retailer 8
-
£1,520 GBP
$2,036 USD
View
B+
Retailer 9
-
£1,545 GBP
$2,070 USD
View
B+
Retailer 10
-
£1,590 GBP
$2,130 USD
View
B+
Retailer 11
-
£1,614 GBP
$2,162 USD
View
B+
Retailer 12
-
£1,657 GBP
$2,220 USD
View
B+
Retailer 13
-
£1,657 GBP
View
B+
Retailer 14
-
£1,661 GBP
$2,225 USD
View
B+
Retailer 15
-
£1,753 GBP
$2,349 USD
View
B+
Retailer 16
-
£1,785 GBP
$2,392 USD
View
B+
Retailer 17
-
£1,868 GBP
ZAR 40,430 ZAR
View
Retailer 18
-
£1,896 GBP
A$3,908 AUD
View
Price last confirmed 27 days ago
B+
Retailer 19
-
£1,934 GBP
€2,468 EUR
View
B
Retailer 20
-
£2,662 GBP
View
Most Expensive
B
NZ Jewellers
f2b7551c-5fa7-4a2c-994c-e58c5ee6a48d · Oct 30
£3,177 GBP
$4,257 USD
View
20 more retailers have this diamond
Prices start from £1,135 GBPSave up to £2,042 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