Round|Natural|GIA

1.22ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6551734170

Certificate GIA 6551734170

Diamond specifications and retailer prices

From £4,069 GBP
As of November 6, 2026
8 retailers carry this diamond
Most expensive: £6,399 GBP at NZ Jewellers · As of September 28, 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 6551734170. Listed at 8 retailers as of November 6, 2026. 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
FluorescenceMedium
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551734170
Dimensions6.79 × 6.82 × 4.27 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.79 mm6.82 mm1.22 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551734170
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £6,399 GBP|Low: £2,961 GBP|High: £6,399 GBP|Avg: £4,066 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£2,961 GBP
Retailer 7£2,972 GBP
Retailer 5£3,283 GBP
Retailer 9£3,328 GBP
Retailer 11£3,328 GBP
Retailer 8£3,840 GBP
Retailer 3£4,055 GBP
Retailer 2£4,069 GBP
Retailer 4£4,139 GBP
Retailer 6£5,905 GBP
NZ Jewellers£6,399 GBP

36 data points across 11 retailers

8 retailers

Retailer 1
-
£2,972 GBP
Price last confirmed 30 days ago
Retailer 2
-
£3,328 GBP
View
Price last confirmed 29 days ago
Retailer 3
-
£3,328 GBP
View
Price last confirmed 28 days ago
Retailer 4
-
£3,840 GBP
View
Price last confirmed 28 days ago
Retailer 5
-
£4,055 GBP
View
Price last confirmed 28 days ago
B
Retailer 6
-
£4,069 GBP
View
Retailer 7
-
£5,905 GBP
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
da66527d-50af-4a98-95f3-200fabc2539d · Sep 28
£6,399 GBP
$8,613 USD
View
Price last confirmed 39 days ago
7 more retailers have this diamond
Prices start from £4,069 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
1.22ct Round
£4,069 GBP