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Round|Natural|GIA

1.22ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6465607205

Certificate GIA 6465607205

Diamond specifications and retailer prices

From £3,072 GBP
As of November 4, 2026
Save £3,028 GBP (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £9,143 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 6465607205. Listed at 7 retailers as of November 4, 2026, with a 99% 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6465607205
Dimensions6.86 × 6.84 × 4.25 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
6.86 mm6.84 mm1.22 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6465607205
Side View
Table 56.0%Crown 35.5°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,749 GBP|Low: £3,072 GBP|High: £6,191 GBP|Avg: £4,331 GBP|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£3,072 GBP
Retailer 1£3,749 GBP
Retailer 5£3,872 GBP
Retailer 2£4,312 GBP
Retailer 3£6,101 GBP

42 data points across 5 retailers

7 retailers£3,072 GBP to £6,101 GBP

B+
Cheapest Retailer
-
£3,072 GBP
B+
Retailer 2
-
£3,749 GBP
View
Retailer 3
-
£3,872 GBP
View
Price last confirmed 28 days ago
Retailer 4
-
£4,239 GBP
View
Price last confirmed 14 days ago
B
Retailer 5
-
£4,312 GBP
View
B
Retailer 6
-
£6,101 GBP
View
Most Expensive
Diamond Quarter
1.22SI1F6405DB54N · Nov 5
£9,143 GBP
View
Price under review
6 more retailers have this diamond
Prices start from £3,072 GBPSave up to £3,028 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
£3,072 GBP