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Heart|Natural|IGI

1.23ct J VS1 Heart Natural Diamond

VG • J/VS1 • IGI 762535068

Shape and cutting style on the report: Heart brilliant

Certificate IGI 762535068

Diamond specifications and retailer prices

From £1,452 GBP
$1,949 USD
As of October 31, 2026
Save £1,909 GBP (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,362 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.23ct natural heart diamond

This 1.23ct 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 762535068. Listed at 15 retailers as of October 30, 2026, with prices from £1,452 to £3,362, a £1,909 spread on the same certified stone. NZ Jewellers lists it at £3,362. 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

1.23
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 762535068
Dimensions6.54 × 7.58 × 4.28 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
Top View
6.54 mm7.58 mm1.23 ctJ / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 762535068
Side View
Table 57.0%Crown 36.2°Girdle: STK-THKPavilion 41.3°Culet: NoneDepth 56.5%

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: Oct 31
Current: £3,362 GBP|Low: £1,452 GBP|High: £3,464 GBP|Avg: £1,938 GBP|-2.9%
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
Retailer 15
November 2, 2026
Retailer 13£1,452 GBP
Retailer 4£1,484 GBP
Retailer 11£1,498 GBP
Retailer 2£1,536 GBP
Retailer 12£1,587 GBP
Retailer 5£1,657 GBP
Retailer 7£1,657 GBP
Retailer 14£1,689 GBP
Retailer 9£1,711 GBP
Retailer 6£1,733 GBP
Retailer 8£1,795 GBP
Retailer 3£1,856 GBP
Retailer 15£1,976 GBP
Retailer 10£2,817 GBP
NZ Jewellers£3,362 GBP

38 data points across 15 retailers

15 retailers£1,452 GBP to £3,362 GBP

A
Cheapest Retailer
-
£1,452 GBP
$1,949 USD
A
Retailer 2
-
£1,484 GBP
$1,991 USD
View
Final sale: no returns
A
Retailer 3
-
£1,498 GBP
$2,010 USD
View
A
Retailer 4
-
£1,536 GBP
View
B+
Retailer 5
-
£1,587 GBP
$2,130 USD
View
B+
Retailer 6
-
£1,657 GBP
$2,223 USD
View
B+
Retailer 7
-
£1,657 GBP
$2,223 USD
View
B+
Retailer 8
-
£1,689 GBP
$2,267 USD
View
B+
Retailer 9
-
£1,711 GBP
$2,297 USD
View
B+
Retailer 10
-
£1,733 GBP
$2,326 USD
View
B+
Retailer 11
-
£1,795 GBP
View
B+
Retailer 12
-
£1,856 GBP
$2,490 USD
View
B+
Retailer 13
-
£1,976 GBP
ZAR 42,846 ZAR
View
B
Retailer 14
-
£2,817 GBP
View
Most Expensive
B
NZ Jewellers
be52a54e-ef32-4e6a-b510-d674abe0f8e2 · Oct 30
£3,362 GBP
$4,511 USD
View
14 more retailers have this diamond
Prices start from £1,452 GBPSave up to £1,909 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
1.23ct Heart
£1,452 GBP