Round|Natural|GIA

1.22ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6552186105

Certificate GIA 6552186105

Diamond specifications and retailer prices

From £2,408 GBP
As of November 2, 2026
Save £1,778 GBP (42%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,405 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552186105. Listed at 9 retailers as of November 1, 2026, with a 74% 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552186105
Dimensions6.77 × 6.81 × 4.26 mm
L/W Ratio1.01
Top View
6.77 mm6.81 mm1.22 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6552186105
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°CuletDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £2,408 GBP|Low: £2,408 GBP|High: £4,279 GBP|Avg: £2,983 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 1£2,408 GBP
Retailer 3£2,418 GBP
Retailer 4£2,688 GBP
Retailer 6£2,800 GBP
Retailer 5£2,918 GBP
Retailer 7£3,008 GBP
Retailer 2£4,186 GBP

35 data points across 7 retailers

9 retailers£2,408 GBP to £4,186 GBP

A
Cheapest Retailer
-
£2,408 GBP
A
Retailer 2
-
£2,418 GBP
View
Retailer 3
-
£2,517 GBP
View
Price last confirmed 29 days ago
Retailer 4
-
£2,528 GBP
View
Price last confirmed 41 days ago
Retailer 5
-
£2,626 GBP
View
Price last confirmed 38 days ago
Retailer 6
-
£2,688 GBP
View
Price last confirmed 30 days ago
B
Retailer 7
-
£4,186 GBP
View
Retailer 8
-
£4,384 GBP
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
455affc7-aad7-4de6-a941-51933c3668dc · Sep 28
£4,405 GBP
$5,929 USD
View
Price last confirmed 39 days ago
8 more retailers have this diamond
Prices start from £2,408 GBPSave up to £1,778 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
£2,408 GBP