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Heart|Natural|IGI

0.51ct I VVS1 Heart Natural Diamond

VG • I/VVS1 • IGI 840603035

Shape and cutting style on the report: Heart brilliant

Certificate IGI 840603035

Diamond specifications and retailer prices

From £489 GBP
As of October 31, 2026
Save £113 GBP (19%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,328 GBP at NZ Jewellers · As of October 30, 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 VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI 840603035. Listed at 13 retailers as of October 31, 2026, with a relatively tight 23% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle38.9°
OriginNatural
Grading LabIGI
CertificateIGI 840603035
Dimensions4.86 × 5.63 × 3.34 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizeNone
Top View
4.86 mm5.63 mm0.51 ctI / VVS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 840603035
Side View
Table 60.0%Crown 33.7°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 59.3%

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: Oct 31
Current: £1,328 GBP|Low: £391 GBP|High: £1,355 GBP|Avg: £614 GBP|-0.6%
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 1, 2026
Retailer 11£391 GBP
Retailer 3£432 GBP
Retailer 4£465 GBP
Retailer 6£465 GBP
Retailer 9£489 GBP
Retailer 12£521 GBP
Retailer 7£527 GBP
Retailer 5£530 GBP
Retailer 13£545 GBP
Retailer 2£568 GBP
Retailer 8£601 GBP
Retailer 10£654 GBP
Retailer 14£1,003 GBP
NZ Jewellers£1,328 GBP

16 data points across 14 retailers

13 retailers£489 GBP to £601 GBP

Retailer 1
-
£432 GBP
Price last confirmed 9 days ago
Retailer 2
-
£465 GBP
View
Price last confirmed 9 days ago
Retailer 3
-
£465 GBP
View
Price last confirmed 9 days ago
A
Retailer 4
-
£489 GBP
View
Retailer 5
-
£521 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£527 GBP
View
Retailer 7
-
£530 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£545 GBP
View
Price last confirmed 8 days ago
Retailer 9
-
£568 GBP
View
Price last confirmed 6 days ago
B+
Retailer 10
-
£601 GBP
View
Retailer 11
-
£654 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
£1,003 GBP
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
6fb76f1d-095a-4344-8d76-db400ac771ed · Oct 30
£1,328 GBP
$1,778 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from £489 GBPSave up to £113 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
£489 GBP