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Heart|Natural|GIA

0.51ct I IF Heart Natural Diamond

VG • I/IF • GIA 1517429668

Certificate GIA 1517429668

Diamond specifications and retailer prices

From £380 GBP
As of November 6, 2026
Save £1,007 GBP (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,387 GBP at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1517429668. Listed at 15 retailers as of November 5, 2026, with prices from £380 to £1,387, a £1,007 spread on the same certified stone. NZ Jewellers lists it at £1,387. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Colour
IF
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1517429668
Dimensions5.47 × 4.51 × 2.83 mm
L/W Ratio1.21
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
5.47 mm4.51 mm0.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1517429668
Side View
Table 58.0%Crown 41.4°Girdle: MED-THKPavilion 41.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,387 GBP|Low: £378 GBP|High: £1,387 GBP|Avg: £599 GBP
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 8£380 GBP
Retailer 7£380 GBP
Retailer 11£442 GBP
Retailer 3£476 GBP
Retailer 13£476 GBP
Retailer 6£488 GBP
Retailer 4£504 GBP
Retailer 12£510 GBP
Retailer 5£516 GBP
Retailer 2£537 GBP
Retailer 14£664 GBP
Retailer 9£682 GBP
Retailer 10£1,027 GBP
NZ Jewellers£1,387 GBP

44 data points across 14 retailers

15 retailers£380 GBP to £1,387 GBP

A
Cheapest Retailer
-
£380 GBP
A
Retailer 2
-
£380 GBP
View
A
Retailer 3
-
£396 GBP
View
A
Retailer 4
-
£442 GBP
View
A
Retailer 5
-
£476 GBP
View
Retailer 6
-
£476 GBP
View
Price last confirmed 9 days ago
A
Retailer 7
-
£510 GBP
View
A
Retailer 8
-
£516 GBP
View
B+
Retailer 9
-
£537 GBP
View
B+
Retailer 10
-
£540 GBP
View
B+
Retailer 11
-
£586 GBP
View
Retailer 12
-
£664 GBP
View
Price last confirmed 34 days ago
B+
Retailer 13
-
£682 GBP
View
Retailer 14
-
£1,027 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
6845900b-5105-44fc-8263-89c35c48b42e · Nov 5
£1,387 GBP
$1,856 USD
View
14 more retailers have this diamond
Prices start from £380 GBPSave up to £1,007 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
£380 GBP