Radiant|Natural|GIA

1.02ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2221621896

Certificate GIA 2221621896

Diamond specifications and retailer prices

From £4,140 GBP
$5,547 USD
As of October 30, 2026
Save £1,693 GBP (29%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,940 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2221621896. Listed at 13 retailers as of October 30, 2026, with a 41% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.02
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2221621896
Dimensions6.67 × 4.74 × 3.26 mm
L/W Ratio1.41
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.67 mm4.74 mm1.02 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2221621896
Side View
Table 65.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £8,148 GBP|Low: £4,017 GBP|High: £8,148 GBP|Avg: £5,295 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
October 31, 2026
Retailer 8£4,140 GBP
Retailer 9£4,161 GBP
Retailer 11£4,382 GBP
Retailer 12£4,415 GBP
Retailer 10£4,693 GBP
Retailer 3£4,747 GBP
Retailer 13£4,747 GBP
Retailer 6£5,188 GBP
Retailer 5£5,195 GBP
Retailer 2£5,833 GBP
Retailer 4£6,504 GBP
Retailer 7£7,032 GBP
NZ Jewellers£8,148 GBP

33 data points across 13 retailers

13 retailers£4,140 GBP to £5,833 GBP

B
Cheapest Retailer
-
£4,140 GBP
$5,547 USD
B+
Retailer 2
-
£4,161 GBP
$5,575 USD
View
B
Retailer 3
-
£4,382 GBP
$5,872 USD
View
Final sale: no returns
B
Retailer 4
-
£4,415 GBP
$5,915 USD
View
Retailer 5
-
£4,693 GBP
A$9,674 AUD
View
Price last confirmed 20 days ago
B
Retailer 6
-
£4,747 GBP
$6,361 USD
View
B
Retailer 7
-
£4,747 GBP
$6,361 USD
View
B
Retailer 8
-
£5,188 GBP
€6,620 EUR
View
Retailer 9
-
£5,478 GBP
$7,340 USD
View
Price last confirmed 54 days ago
B
Retailer 10
-
£5,478 GBP
$7,340 USD
View
B
Retailer 11
-
£5,833 GBP
ZAR 126,259 ZAR
View
Retailer 12
-
£7,032 GBP
View
Price under review
Most Expensive
NZ Jewellers
ead087fb-d551-4a8d-90e9-b2b8b695b2f0 · Oct 30
£7,940 GBP
$10,639 USD
View
Price under review
12 more retailers have this diamond
Prices start from £4,140 GBPSave up to £1,693 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.

B+
1.02ct Radiant
£4,140 GBP