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Radiant|Natural|GIA

1.22ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 6551558744

Certificate GIA 6551558744

Diamond specifications and retailer prices

From £2,321 GBP
As of November 4, 2026
Save £2,093 GBP (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,414 GBP at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.22ct natural radiant diamond

This 1.22ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551558744. Listed at 12 retailers as of November 4, 2026, with prices from £2,321 to £4,414, a £2,093 spread on the same certified stone. Helzberg Diamonds lists it at £4,414. 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

1.22
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551558744
Dimensions6.94 × 5.33 × 3.67 mm
L/W Ratio1.30
Culet sizeNone
Top View
6.94 mm5.33 mm1.22 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551558744
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

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 4
Current: £4,414 GBP|Low: £2,321 GBP|High: £4,503 GBP|Avg: £3,114 GBP|+1.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 9£2,321 GBP
Retailer 5£2,377 GBP
Retailer 7£2,501 GBP
Retailer 8£2,507 GBP
Retailer 2£2,707 GBP
Retailer 3£2,795 GBP
Retailer 10£2,965 GBP
Retailer 12£3,013 GBP
Retailer 6£3,094 GBP
Retailer 4£3,913 GBP
Retailer 11£4,197 GBP
Helzberg Diamonds£4,414 GBP

43 data points across 12 retailers

12 retailers£2,321 GBP to £4,414 GBP

A
Cheapest Retailer
-
£2,321 GBP
A
Retailer 2
-
£2,377 GBP
View
B+
Retailer 3
-
£2,501 GBP
View
B+
Retailer 4
-
£2,507 GBP
View
B+
Retailer 5
-
£2,707 GBP
View
B+
Retailer 6
-
£2,795 GBP
View
B+
Retailer 7
-
£2,965 GBP
View
B+
Retailer 8
-
£3,013 GBP
View
B+
Retailer 9
-
£3,094 GBP
View
B
Retailer 10
-
£3,913 GBP
View
B
Retailer 11
-
£4,197 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRMLLHLLONKK · Nov 4
£4,414 GBP
$5,908 USD
View
11 more retailers have this diamond
Prices start from £2,321 GBPSave up to £2,093 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
1.22ct Radiant
£2,321 GBP