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 €2,863 EUR
As of November 5, 2026
Save €3,836 EUR (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €6,698 EUR 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 €2,863 to €6,698, a €3,836 spread on the same certified stone. NZ Jewellers lists it at €6,698. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €6,698 EUR|Low: €2,863 EUR|High: €6,698 EUR|Avg: €4,024 EUR
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€2,863 EUR
Retailer 12€3,115 EUR
Retailer 8€3,416 EUR
Retailer 5€3,499 EUR
Retailer 10€3,549 EUR
Retailer 7€3,844 EUR
Retailer 11€3,844 EUR
Retailer 2€4,006 EUR
Retailer 4€4,066 EUR
Retailer 3€4,436 EUR
Retailer 9€6,107 EUR
NZ Jewellers€6,698 EUR

4 data points across 12 retailers

12 retailers€2,863 EUR to €6,698 EUR

A
Cheapest Retailer
-
€2,863 EUR
A
Retailer 2
-
€3,115 EUR
View
B+
Retailer 3
-
€3,416 EUR
View
B+
Retailer 4
-
€3,499 EUR
View
B+
Retailer 5
-
€3,549 EUR
View
Final sale: no returns
B+
Retailer 6
-
€3,844 EUR
View
B+
Retailer 7
-
€3,844 EUR
View
B+
Retailer 8
-
€4,006 EUR
View
B+
Retailer 9
-
€4,066 EUR
View
B
Retailer 10
-
€4,436 EUR
View
B
Retailer 11
-
€6,107 EUR
View
Most Expensive
B
NZ Jewellers
d3ccc593-a6fa-4142-850b-d3d27c1aa763 · Nov 5
€6,698 EUR
$7,518 USD
View
11 more retailers have this diamond
Prices start from €2,863 EURSave up to €3,836 EUR

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
€2,863 EUR