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Heart|Natural|GIA

0.50ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6551597620

Certificate GIA 6551597620

Diamond specifications and retailer prices

From £330 GBP
As of November 6, 2026
Save £495 GBP (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,372 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural heart diamond

This 0.5ct natural heart sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551597620. Listed at 14 retailers as of November 4, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551597620
Dimensions4.94 × 5.49 × 3.15 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather
Top View
4.94 mm5.49 mm0.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551597620
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.4%

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 6
Current: £1,372 GBP|Low: £330 GBP|High: £1,406 GBP|Avg: £523 GBP|-2.4%
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
November 6, 2026
Retailer 14£330 GBP
Retailer 4£338 GBP
Retailer 3£358 GBP
Retailer 11£386 GBP
Retailer 6£390 GBP
Retailer 8£392 GBP
Retailer 12£413 GBP
Retailer 2£424 GBP
Retailer 9£442 GBP
Retailer 13£448 GBP
Retailer 5£495 GBP
Retailer 7£536 GBP
Retailer 10£825 GBP
NZ Jewellers£1,372 GBP

28 data points across 14 retailers

14 retailers£330 GBP to £825 GBP

A
Cheapest Retailer
-
£330 GBP
Final sale: no returns
A
Retailer 2
-
£338 GBP
View
A
Retailer 3
-
£358 GBP
View
A
Retailer 4
-
£386 GBP
View
Retailer 5
-
£390 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£392 GBP
View
B+
Retailer 7
-
£413 GBP
View
B+
Retailer 8
-
£424 GBP
View
B+
Retailer 9
-
£442 GBP
View
B+
Retailer 10
-
£448 GBP
View
B+
Retailer 11
-
£495 GBP
View
B+
Retailer 12
-
£536 GBP
View
B
Retailer 13
-
£825 GBP
View
Most Expensive
NZ Jewellers
8f69ab64-cec1-493f-a59d-2a5dc8c174ca · Nov 5
£1,372 GBP
$1,836 USD
View
Price under review
13 more retailers have this diamond
Prices start from £330 GBPSave up to £495 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
0.50ct Heart
£330 GBP