Round|Natural|GIA

0.51ct K IF Round Natural Diamond

EX • K/IF • GIA 2547681998

Certificate GIA 2547681998

Diamond specifications and retailer prices

From £257 GBP
As of November 6, 2026
Save £548 GBP (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,295 GBP at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2547681998. Listed at 10 retailers as of November 4, 2026, with a 213% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2547681998
Dimensions5.09 × 5.12 × 3.19 mm
L/W Ratio1.01
Star length45%
Top View
5.09 mm5.12 mm0.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547681998
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £257 GBP|Low: £257 GBP|High: £962 GBP|Avg: £462 GBP|-8.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1£257 GBP
Retailer 7£294 GBP
Retailer 2£368 GBP
Retailer 6£378 GBP
Retailer 4£476 GBP
Retailer 3£562 GBP
Retailer 5£805 GBP

39 data points across 7 retailers

10 retailers£257 GBP to £805 GBP

A
Cheapest Retailer
-
£257 GBP
A
Retailer 2
-
£294 GBP
View
A
Retailer 3
-
£368 GBP
View
A
Retailer 4
-
£378 GBP
View
Retailer 5
-
£399 GBP
View
Price last confirmed 38 days ago
Retailer 6
-
£413 GBP
View
Price last confirmed 30 days ago
A
Retailer 7
-
£476 GBP
View
B+
Retailer 8
-
£562 GBP
View
B
Retailer 9
-
£805 GBP
View
Most Expensive
NZ Jewellers
1e94939e-5b3b-4f65-a63d-fd540b82749f · Oct 6
£1,295 GBP
$1,743 USD
View
Price last confirmed 31 days ago
9 more retailers have this diamond
Prices start from £257 GBPSave up to £548 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
0.51ct Round
£257 GBP