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Radiant|Natural|GIA

1.00ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6561316197

Certificate GIA 6561316197

Diamond specifications and retailer prices

From £1,149 GBP
₹146,621 INR
As of November 1, 2026
Save £2,104 GBP (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,253 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561316197. Listed at 20 retailers as of October 30, 2026, with prices from £1,149 to £3,253, a £2,104 spread on the same certified stone. NZ Jewellers lists it at £3,253. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6561316197
Dimensions6.96 × 4.98 × 3.24 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.96 mm4.98 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6561316197
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.1%

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: £3,253 GBP|Low: £1,149 GBP|High: £3,365 GBP|Avg: £1,807 GBP|-3.3%
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
November 2, 2026
Retailer 15£1,149 GBP
Retailer 12£1,207 GBP
Retailer 7£1,405 GBP
Retailer 4£1,429 GBP
Retailer 2£1,491 GBP
Retailer 17£1,528 GBP
Retailer 6£1,544 GBP
Retailer 8£1,555 GBP
Retailer 14£1,623 GBP
Retailer 9£1,628 GBP
Retailer 13£1,677 GBP
Retailer 10£1,698 GBP
Retailer 5£1,795 GBP
Retailer 16£1,804 GBP
Retailer 3£1,912 GBP
Retailer 11£1,952 GBP
Retailer 18£2,725 GBP
NZ Jewellers£3,253 GBP

19 data points across 18 retailers

20 retailers£1,149 GBP to £3,253 GBP

A
Cheapest Retailer
-
£1,149 GBP
₹146,621 INR
A
Retailer 2
-
£1,207 GBP
$1,617 USD
View
Final sale: no returns
A
Retailer 3
-
£1,405 GBP
$1,883 USD
View
A
Retailer 4
-
£1,429 GBP
$1,915 USD
View
A
Retailer 5
-
£1,491 GBP
View
A
Retailer 6
-
£1,528 GBP
$2,048 USD
View
B+
Retailer 7
-
£1,544 GBP
$2,069 USD
View
B+
Retailer 8
-
£1,555 GBP
$2,084 USD
View
B+
Retailer 9
-
£1,623 GBP
$2,175 USD
View
B+
Retailer 10
-
£1,625 GBP
$2,177 USD
View
B+
Retailer 11
-
£1,628 GBP
$2,181 USD
View
B+
Retailer 12
-
£1,677 GBP
View
B+
Retailer 13
-
£1,698 GBP
$2,275 USD
View
B+
Retailer 14
-
£1,795 GBP
$2,405 USD
View
B+
Retailer 15
-
£1,804 GBP
$2,417 USD
View
B+
Retailer 16
-
£1,912 GBP
ZAR 41,390 ZAR
View
B+
Retailer 17
-
£1,952 GBP
€2,491 EUR
View
Retailer 18
-
£1,980 GBP
A$4,082 AUD
View
Price last confirmed 26 days ago
B
Retailer 19
-
£2,725 GBP
View
Most Expensive
B
NZ Jewellers
32f8e95e-c1fe-4f39-94d1-242cce4ae019 · Oct 30
£3,253 GBP
$4,358 USD
View
19 more retailers have this diamond
Prices start from £1,149 GBPSave up to £2,104 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
£1,149 GBP