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Heart|Natural|IGI

1.51ct J VS1 Heart Natural Diamond

VG • J/VS1 • IGI 685580910

Shape and cutting style on the report: Heart brilliant

Certificate IGI 685580910

Diamond specifications and retailer prices

From £1,801 GBP
₹229,807 INR
As of November 1, 2026
Save £1,995 GBP (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,955 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 685580910. Listed at 16 retailers as of November 1, 2026, with a 111% 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

1.51
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 685580910
Dimensions6.97 × 7.81 × 4.61 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Top View
6.97 mm7.81 mm1.51 ctJ / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 685580910
Side View
Table 57.0%Crown 38.7°Girdle: ThickPavilion 39.2°Culet: NoneDepth 59.0%

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 1
Current: £1,801 GBP|Low: £1,797 GBP|High: £3,842 GBP|Avg: £2,437 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 1£1,801 GBP
Retailer 6£2,034 GBP
Retailer 2£2,139 GBP
Retailer 7£2,270 GBP
Retailer 4£2,470 GBP
Retailer 5£2,790 GBP
Retailer 3£3,796 GBP

32 data points across 7 retailers

16 retailers£1,801 GBP to £3,796 GBP

A
Cheapest Retailer
-
£1,801 GBP
₹229,807 INR
A
Retailer 2
-
£2,032 GBP
$2,723 USD
View
A
Retailer 3
-
£2,034 GBP
$2,725 USD
View
A
Retailer 4
-
£2,094 GBP
$2,806 USD
View
A
Retailer 5
-
£2,139 GBP
View
Retailer 6
-
£2,270 GBP
$3,041 USD
View
Price last confirmed 31 days ago
Retailer 7
-
£2,270 GBP
$3,041 USD
View
Price last confirmed 37 days ago
Retailer 8
-
£2,357 GBP
$3,158 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
£2,376 GBP
$3,184 USD
View
A
Retailer 10
-
£2,470 GBP
View
Retailer 11
-
£2,619 GBP
$3,509 USD
View
Price last confirmed 38 days ago
Retailer 12
-
£2,619 GBP
$3,509 USD
View
Price last confirmed 33 days ago
B+
Retailer 13
-
£2,790 GBP
ZAR 60,392 ZAR
View
B
Retailer 14
-
£3,796 GBP
View
Retailer 15
-
£3,955 GBP
$5,299 USD
View
Price last confirmed 37 days ago
Most Expensive
NZ Jewellers
6d9a2199-256f-475f-8a44-01792de0bb04 · Sep 30
£3,955 GBP
$5,299 USD
View
Price last confirmed 32 days ago
15 more retailers have this diamond
Prices start from £1,801 GBPSave up to £1,995 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
1.51ct Heart
£1,801 GBP