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Heart|Natural|IGI

1.20ct J VS1 Heart Natural Diamond

VG • J/VS1 • IGI 809693957

Shape and cutting style on the report: Heart brilliant

Certificate IGI 809693957

Diamond specifications and retailer prices

From £1,354 GBP
As of November 2, 2026
Save £2,104 GBP (61%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,493 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 809693957. Listed at 9 retailers as of November 2, 2026, with a 155% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle42°
OriginNatural
Grading LabIGI
CertificateIGI 809693957
Dimensions6.39 × 7.48 × 4.49 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.39 mm7.48 mm1.20 ctJ / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 809693957
Side View
Table 62.0%Crown 34.7°Girdle: MED-STKPavilion 42°CuletDepth 60.0%

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 2
Current: £3,458 GBP|Low: £1,354 GBP|High: £3,475 GBP|Avg: £1,892 GBP|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 3£1,354 GBP
Retailer 4£1,417 GBP
Retailer 7£1,427 GBP
Retailer 6£1,434 GBP
Retailer 2£1,483 GBP
Retailer 5£2,483 GBP
NZ Jewellers£3,458 GBP

36 data points across 7 retailers

9 retailers£1,354 GBP to £3,458 GBP

A
Cheapest Retailer
-
£1,354 GBP
A
Retailer 2
-
£1,417 GBP
View
A
Retailer 3
-
£1,427 GBP
View
Retailer 4
-
£1,432 GBP
View
Price last confirmed 44 days ago
B+
Retailer 5
-
£1,434 GBP
View
A
Retailer 6
-
£1,483 GBP
View
B
Retailer 7
-
£2,483 GBP
View
C
Retailer 8
-
£3,458 GBP
View
Most Expensive
NZ Jewellers
3169f468-f01d-4024-a599-b54c2ea3590e · Sep 20
£3,493 GBP
$4,675 USD
View
Price last confirmed 46 days ago
8 more retailers have this diamond
Prices start from £1,354 GBPSave up to £2,104 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
1.20ct Heart
£1,354 GBP