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Round|Natural|GIA

1.21ct F IF Round Natural Diamond

EX • F/IF • GIA 1548725638

Certificate GIA 1548725638

Diamond specifications and retailer prices

From £7,120 GBP
As of November 5, 2026
Save £3,288 GBP (32%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £11,322 GBP at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1548725638. Listed at 10 retailers as of November 7, 2026, with a 46% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1548725638
Dimensions6.88 × 6.92 × 4.19 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Minor Details of Polish
Top View
6.88 mm6.92 mm1.21 ctF / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548725638
Side View
Table 56.0%Crown 33.5°GirdlePavilion 40.8°CuletDepth 60.8%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £7,185 GBP|Low: £6,906 GBP|High: £10,737 GBP|Avg: £8,018 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7£6,906 GBP
Retailer 4£7,120 GBP
Retailer 5£7,120 GBP
Retailer 1£7,185 GBP
Retailer 6£7,400 GBP
Retailer 9£7,878 GBP
Retailer 10£8,247 GBP
Retailer 2£8,407 GBP
Retailer 8£8,598 GBP
Retailer 3£10,408 GBP

37 data points across 10 retailers

10 retailers£7,120 GBP to £10,408 GBP

B+
Cheapest Retailer
-
£7,120 GBP
B+
Retailer 2
-
£7,120 GBP
View
B+
Retailer 3
-
£7,185 GBP
View
Retailer 4
-
£7,400 GBP
View
Price last confirmed 15 days ago
Retailer 5
-
£8,052 GBP
View
Price last confirmed 31 days ago
Retailer 6
-
£8,123 GBP
View
Price last confirmed 42 days ago
Retailer 7
-
£8,175 GBP
View
Price last confirmed 39 days ago
B
Retailer 8
-
£10,408 GBP
View
Retailer 9
-
£11,222 GBP
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
923d3724-a25d-4325-b8f0-2e2a5e8b83b4 · Sep 27
£11,322 GBP
$15,155 USD
View
Price last confirmed 41 days ago
9 more retailers have this diamond
Prices start from £7,120 GBPSave up to £3,288 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+
1.21ct Round
£7,120 GBP