Heart|Natural|GIA

0.51ct G IF Heart Natural Diamond

EX • G/IF • GIA 7548232156

Certificate GIA 7548232156

Diamond specifications and retailer prices

From £623 GBP
As of November 5, 2026
Save £158 GBP (20%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,678 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548232156. Listed at 8 retailers as of November 4, 2026, with a 25% 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
G
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 7548232156
Dimensions5.20 × 5.75 × 3.11 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
5.20 mm5.75 mm0.51 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7548232156
Side View
Table 60.0%CrownGirdle: STK-THKPavilion 39°Culet: NoneDepth 54.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £623 GBP|Low: £411 GBP|High: £983 GBP|Avg: £665 GBP|+0.2%
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
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Retailer 16
Retailer 17
November 5, 2026
Retailer 11£452 GBP
Retailer 8£520 GBP
Retailer 7£529 GBP
Retailer 2£541 GBP
Retailer 13£565 GBP
Retailer 5£571 GBP
Retailer 14£610 GBP
Retailer 1£623 GBP
Retailer 6£669 GBP
Retailer 4£690 GBP
Retailer 3£692 GBP
Retailer 12£741 GBP
Retailer 9£781 GBP
Retailer 17£788 GBP
Retailer 10£805 GBP
Retailer 16£820 GBP
Retailer 15£983 GBP

10 data points across 17 retailers

8 retailers£623 GBP to £781 GBP

Retailer 1
-
£456 GBP
Price last confirmed 62 days ago
Retailer 2
-
£541 GBP
View
Price last confirmed 43 days ago
A
Retailer 3
-
£623 GBP
View
Retailer 4
-
£692 GBP
View
Price last confirmed 43 days ago
B+
Retailer 5
-
£781 GBP
View
Retailer 6
-
£788 GBP
View
Price last confirmed 43 days ago
Retailer 7
-
£805 GBP
View
Price last confirmed 42 days ago
Most Expensive
NZ Jewellers
4658b770-a531-4201-aea9-34499975bdc1 · Sep 20
£1,678 GBP
$2,259 USD
View
Price last confirmed 45 days ago
7 more retailers have this diamond
Prices start from £623 GBPSave up to £158 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 Heart
£623 GBP