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Radiant|Natural|GIA

1.00ct E SI2 Radiant Natural Diamond

VG • E/SI2 • GIA 7421637627

Certificate GIA 7421637627

Diamond specifications and retailer prices

From £1,182 GBP
HK$12,300 HKD
As of October 29, 2026
Save £2,532 GBP (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,714 GBP at Adiamor · As of October 29, 2026
View at Adiamor

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7421637627. Listed at 19 retailers as of October 29, 2026, with prices from £1,182 to £3,714, a £2,532 spread on the same certified stone. Adiamor lists it at £3,714. 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
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7421637627
Dimensions6.55 × 5.11 × 3.55 mm
L/W Ratio1.28
Top View
6.55 mm5.11 mm1.00 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7421637627
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.5%

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: Oct 29
Current: £1,808 GBP|Low: £1,126 GBP|High: £2,931 GBP|Avg: £1,697 GBP|+3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 2£1,182 GBP
Retailer 3£1,184 GBP
Retailer 9£1,493 GBP
Retailer 8£1,524 GBP
Retailer 7£1,532 GBP
Retailer 6£1,539 GBP
Retailer 10£1,729 GBP
Retailer 1£1,808 GBP
Retailer 5£2,060 GBP
Retailer 4£2,911 GBP

37 data points across 10 retailers

19 retailers£1,182 GBP to £3,714 GBP

A
Cheapest Retailer
-
£1,182 GBP
HK$12,300 HKD
A
Retailer 2
-
£1,184 GBP
₹150,137 INR
View
A
Retailer 3
-
£1,449 GBP
$1,930 USD
View
A
Retailer 4
-
£1,493 GBP
$1,988 USD
View
B+
Retailer 5
-
£1,524 GBP
$2,030 USD
View
Final sale: no returns
A
Retailer 6
-
£1,532 GBP
$2,040 USD
View
A
Retailer 7
-
£1,539 GBP
$2,050 USD
View
A
Retailer 8
-
£1,595 GBP
A$3,268 AUD
View
A
Retailer 9
-
£1,653 GBP
$2,201 USD
View
A
Retailer 10
-
£1,653 GBP
$2,201 USD
View
A
Retailer 11
-
£1,663 GBP
SGD 2,993 SGD
View
A
Retailer 12
-
£1,729 GBP
$2,302 USD
View
A
Retailer 13
-
£1,757 GBP
$2,340 USD
View
A
Retailer 14
-
£1,808 GBP
View
B+
Retailer 15
-
£1,907 GBP
$2,539 USD
View
B+
Retailer 16
-
£2,060 GBP
€2,613 EUR
View
B
Retailer 17
-
£2,911 GBP
View
B
Retailer 18
-
£3,455 GBP
$4,601 USD
View
Most Expensive
B
Adiamor
D-50371349 · Oct 29
£3,714 GBP
$4,946 USD
View
18 more retailers have this diamond
Prices start from £1,182 GBPSave up to £2,532 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
£1,182 GBP