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Round|Natural|GIA

1.25ct K IF Round Natural Diamond

EX • K/IF • GIA 2556558288

Certificate GIA 2556558288

Diamond specifications and retailer prices

From £1,941 GBP
As of November 4, 2026
Save £2,408 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,678 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2556558288. Listed at 15 retailers as of November 2, 2026, with a 124% 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

1.25
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556558288
Dimensions6.82 × 6.86 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.82 mm6.86 mm1.25 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556558288
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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: £4,678 GBP|Low: £1,922 GBP|High: £4,897 GBP|Avg: £2,908 GBP|-3.5%
NZ Jewellers
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
November 6, 2026
Retailer 15£1,941 GBP
Retailer 3£2,031 GBP
Retailer 16£2,396 GBP
Retailer 11£2,398 GBP
Retailer 9£2,412 GBP
Retailer 4£2,469 GBP
Retailer 5£2,685 GBP
Retailer 2£2,687 GBP
Retailer 14£2,770 GBP
Retailer 8£2,787 GBP
Retailer 7£2,788 GBP
Retailer 12£2,854 GBP
Retailer 6£3,098 GBP
Retailer 10£3,189 GBP
Retailer 13£4,349 GBP
NZ Jewellers£4,678 GBP

29 data points across 16 retailers

15 retailers£1,941 GBP to £4,349 GBP

A
Cheapest Retailer
-
£1,941 GBP
Retailer 2
-
£2,031 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
£2,396 GBP
View
A
Retailer 4
-
£2,398 GBP
View
A
Retailer 5
-
£2,412 GBP
View
Final sale: no returns
Retailer 6
-
£2,685 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
£2,687 GBP
View
A
Retailer 8
-
£2,770 GBP
View
Retailer 9
-
£2,787 GBP
View
Price last confirmed 14 days ago
Retailer 10
-
£2,788 GBP
View
Price last confirmed 15 days ago
A
Retailer 11
-
£2,854 GBP
View
Retailer 12
-
£3,098 GBP
View
Price last confirmed 16 days ago
A
Retailer 13
-
£3,189 GBP
View
B+
Retailer 14
-
£4,349 GBP
View
Most Expensive
NZ Jewellers
77b0d440-e0ed-4c32-96b3-f982b34b5738 · Oct 20
£4,678 GBP
$6,261 USD
View
Price last confirmed 17 days ago
14 more retailers have this diamond
Prices start from £1,941 GBPSave up to £2,408 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 Round
£1,941 GBP