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Round|Natural|GIA

1.51ct K IF Round Natural Diamond

EX • K/IF • GIA 2458383140

Certificate GIA 2458383140

Diamond specifications and retailer prices

From £4,504 GBP
As of November 6, 2026
Save £2,553 GBP (36%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £8,032 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2458383140. Listed at 10 retailers as of November 4, 2026, with a 57% 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

1.51
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2458383140
Dimensions7.34 × 7.30 × 4.53 mm
L/W Ratio1.01
Top View
7.34 mm7.30 mm1.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2458383140
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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 6
Current: £4,504 GBP|Low: £4,462 GBP|High: £7,161 GBP|Avg: £5,312 GBP|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1£4,504 GBP
Retailer 5£4,618 GBP
Retailer 6£4,680 GBP
Retailer 3£5,207 GBP
Retailer 2£5,860 GBP
Retailer 4£7,057 GBP

43 data points across 6 retailers

10 retailers£4,504 GBP to £7,057 GBP

A
Cheapest Retailer
-
£4,504 GBP
A
Retailer 2
-
£4,618 GBP
View
Retailer 3
-
£4,803 GBP
View
Price last confirmed 29 days ago
Retailer 4
-
£4,803 GBP
View
Price last confirmed 29 days ago
Retailer 5
-
£4,803 GBP
View
Price last confirmed 38 days ago
B+
Retailer 6
-
£5,207 GBP
View
Retailer 7
-
£5,542 GBP
View
Price last confirmed 38 days ago
B+
Retailer 8
-
£5,860 GBP
View
B+
Retailer 9
-
£7,057 GBP
View
Most Expensive
NZ Jewellers
e6627b81-6a3f-40e8-8d63-5a0c66b0ec63 · Sep 28
£8,032 GBP
$10,811 USD
View
Price last confirmed 39 days ago
9 more retailers have this diamond
Prices start from £4,504 GBPSave up to £2,553 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
1.51ct Round
£4,504 GBP