CaratHunter
Plans
Heart|Natural|GIA

1.23ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6561386466

Certificate GIA 6561386466

Diamond specifications and retailer prices

From €2,853 EUR
As of November 6, 2026
Save €2,531 EUR (47%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €5,384 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561386466. Listed at 5 retailers as of November 5, 2026, with prices from €2,853 to €5,384, a €2,531 spread on the same certified stone. NZ Jewellers lists it at €5,384. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.23
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6561386466
Dimensions6.67 × 7.56 × 4.09 mm
L/W Ratio1.13
Key to symbols
Crystal, Feather, Needle
Top View
6.67 mm7.56 mm1.23 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6561386466
Side View
Table 54.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 54.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €5,384 EUR|Low: €2,449 EUR|High: €5,390 EUR|Avg: €3,869 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2€2,853 EUR
Retailer 5€2,983 EUR
Retailer 3€2,998 EUR
Retailer 4€5,154 EUR
NZ Jewellers€5,384 EUR

34 data points across 5 retailers

5 retailers€2,853 EUR to €5,384 EUR

B+
Cheapest Retailer
-
€2,853 EUR
Final sale: no returns
B+
Retailer 2
-
€2,983 EUR
View
B+
Retailer 3
-
€2,998 EUR
View
B
Retailer 4
-
€5,154 EUR
View
Most Expensive
B
NZ Jewellers
5c9e04d2-03eb-425e-a8c7-be5f950f35cb · Nov 5
€5,384 EUR
$6,011 USD
View
4 more retailers have this diamond
Prices start from €2,853 EURSave up to €2,531 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.

B+
1.23ct Heart
€2,853 EUR