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Round|Natural|GIA

1.22ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 5242031436

Certificate GIA 5242031436

Diamond specifications and retailer prices

From £1,902 GBP
As of November 2, 2026
Save £2,520 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,689 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.22ct natural round diamond

This 1.22ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5242031436. Listed at 13 retailers as of October 30, 2026, with a 133% 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

1.22
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5242031436
Dimensions6.82 × 6.79 × 4.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.82 mm6.79 mm1.22 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242031436
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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 2
Current: £4,422 GBP|Low: £1,883 GBP|High: £4,689 GBP|Avg: £2,951 GBP|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 7£1,902 GBP
Retailer 6£2,194 GBP
Retailer 11£2,228 GBP
Retailer 9£2,322 GBP
Retailer 10£2,388 GBP
Retailer 8£2,514 GBP
Retailer 12£2,600 GBP
Retailer 3£2,673 GBP
Retailer 2£2,889 GBP
Retailer 4£3,898 GBP
Retailer 5£4,206 GBP
NZ Jewellers£4,422 GBP

38 data points across 12 retailers

13 retailers£1,902 GBP to £4,422 GBP

A
Cheapest Retailer
-
£1,902 GBP
A
Retailer 2
-
£2,194 GBP
View
A
Retailer 3
-
£2,228 GBP
View
A
Retailer 4
-
£2,388 GBP
View
A
Retailer 5
-
£2,514 GBP
View
A
Retailer 6
-
£2,563 GBP
View
A
Retailer 7
-
£2,600 GBP
View
Retailer 8
-
£2,673 GBP
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£2,889 GBP
View
Retailer 10
-
£3,898 GBP
View
Price last confirmed 18 days ago
B+
Retailer 11
-
£4,206 GBP
View
B
Retailer 12
-
£4,422 GBP
View
Most Expensive
NZ Jewellers
02a13e6f-db09-4ebc-a347-3d171f79eafd · Sep 25
£4,689 GBP
$6,311 USD
View
Price last confirmed 41 days ago
12 more retailers have this diamond
Prices start from £1,902 GBPSave up to £2,520 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 Round
£1,902 GBP