Radiant|Natural|GIA

1.25ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 6552205527

Certificate GIA 6552205527

Diamond specifications and retailer prices

From £2,515 GBP
As of November 4, 2026
Save £2,793 GBP (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £5,863 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.25ct natural radiant diamond

This 1.25ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552205527. Listed at 22 retailers as of November 4, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.25
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle56.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552205527
Dimensions7.38 × 5.38 × 3.56 mm
L/W Ratio1.37
Top View
7.38 mm5.38 mm1.25 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552205527
Side View
Table 66.0%Crown 41.7°Girdle: ThickPavilion 56.8°Culet: NoneDepth 66.0%

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 4
Current: £5,307 GBP|Low: £2,433 GBP|High: £5,423 GBP|Avg: £3,386 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 7, 2026
Retailer 5£2,515 GBP
Retailer 10£2,652 GBP
Retailer 21£2,671 GBP
Retailer 19£2,740 GBP
Retailer 3£2,777 GBP
Retailer 2£2,802 GBP
Retailer 4£2,851 GBP
Retailer 20£2,891 GBP
Retailer 14£3,168 GBP
Retailer 15£3,251 GBP
Retailer 11£3,392 GBP
Retailer 12£3,394 GBP
Retailer 6£3,422 GBP
Retailer 7£3,422 GBP
Retailer 8£3,515 GBP
Retailer 9£3,534 GBP
Retailer 16£3,770 GBP
Retailer 13£3,806 GBP
Retailer 18£3,984 GBP
Retailer 17£4,088 GBP
Retailer 1£5,307 GBP

26 data points across 21 retailers

22 retailers£2,515 GBP to £5,307 GBP

A
Cheapest Retailer
-
£2,515 GBP
A
Retailer 2
-
£2,671 GBP
View
A
Retailer 3
-
£2,740 GBP
View
A
Retailer 4
-
£2,777 GBP
View
A
Retailer 5
-
£2,802 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,851 GBP
View
A
Retailer 7
-
£2,891 GBP
View
Retailer 8
-
£3,048 GBP
View
Price last confirmed 40 days ago
B+
Retailer 9
-
£3,251 GBP
View
Retailer 10
-
£3,392 GBP
View
Price last confirmed 29 days ago
B+
Retailer 11
-
£3,394 GBP
View
B+
Retailer 12
-
£3,422 GBP
View
B+
Retailer 13
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£3,422 GBP
View
B+
Retailer 14
-
£3,515 GBP
View
Retailer 15
-
£3,517 GBP
View
Price last confirmed 39 days ago
B+
Retailer 16
-
£3,534 GBP
View
B+
Retailer 17
-
£3,770 GBP
View
Retailer 18
-
£3,806 GBP
View
Price last confirmed 24 days ago
B+
Retailer 19
-
£3,984 GBP
View
B
Retailer 20
-
£4,088 GBP
View
B
Retailer 21
-
£5,307 GBP
View
Most Expensive
NZ Jewellers
178ccfc9-403f-4745-bf10-d08ceef86d08 · Sep 30
£5,863 GBP
$7,847 USD
View
Price last confirmed 37 days ago
21 more retailers have this diamond
Prices start from £2,515 GBPSave up to £2,793 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
1.25ct Radiant
£2,515 GBP