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Heart|Natural|IGI

1.23ct G VVS1 Heart Natural Diamond

VG • G/VVS1 • IGI 851618603

Shape and cutting style on the report: Heart brilliant

Certificate IGI 851618603

Diamond specifications and retailer prices

From $4,487 CAD
As of November 5, 2026
Save $6,012 CAD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,500 CAD at NZ Jewellers · As of November 5, 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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI 851618603. Listed at 12 retailers as of November 5, 2026, with prices from $4,487 to $10,500, a $6,012 spread on the same certified stone. NZ Jewellers lists it at $10,500. 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
G
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39.5°
OriginNatural
Grading LabIGI
CertificateIGI 851618603
Dimensions6.59 × 7.26 × 4.43 mm
L/W Ratio1.10
Girdle conditionFaceted
Top View
6.59 mm7.26 mm1.23 ctG / VVS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 851618603
Side View
Table 54.0%Crown 33.1°Girdle: STK-THKPavilion 39.5°CuletDepth 61.0%

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 5
Current: $10,500 CAD|Low: $4,487 CAD|High: $10,500 CAD|Avg: $6,308 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6$4,487 CAD
Retailer 12$4,883 CAD
Retailer 8$5,355 CAD
Retailer 5$5,484 CAD
Retailer 10$5,563 CAD
Retailer 7$6,026 CAD
Retailer 11$6,026 CAD
Retailer 2$6,279 CAD
Retailer 4$6,374 CAD
Retailer 3$6,954 CAD
Retailer 9$9,572 CAD
NZ Jewellers$10,500 CAD

4 data points across 12 retailers

12 retailers$4,487 CAD to $10,500 CAD

A
Cheapest Retailer
-
$4,487 CAD
A
Retailer 2
-
$4,883 CAD
View
B+
Retailer 3
-
$5,355 CAD
View
B+
Retailer 4
-
$5,484 CAD
View
B+
Retailer 5
-
$5,563 CAD
View
Final sale: no returns
B+
Retailer 6
-
$6,026 CAD
View
B+
Retailer 7
-
$6,026 CAD
View
B+
Retailer 8
-
$6,279 CAD
View
B+
Retailer 9
-
$6,374 CAD
View
B
Retailer 10
-
$6,954 CAD
View
B
Retailer 11
-
$9,572 CAD
View
Most Expensive
B
NZ Jewellers
d3ccc593-a6fa-4142-850b-d3d27c1aa763 · Nov 5
$10,500 CAD
$7,518 USD
View
11 more retailers have this diamond
Prices start from $4,487 CADSave up to $6,012 CAD

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
$4,487 CAD