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Heart|Natural|HRD

1.23ct I SI1 Heart Natural Diamond

GD • I/SI1 • HRD 180000005440

Shape and cutting style on the report: Heart

Certificate HRD 180000005440

Diamond specifications and retailer prices

From €3,411 EUR
As of November 5, 2026
Save €631 EUR (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €4,042 EUR at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by HRD 180000005440. Listed at 3 retailers as of November 5, 2026, with prices from €3,411 to €4,042, a €631 spread on the same certified stone. Yorxs lists it at €4,042. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 180000005440
Dimensions6.67 × 6.59 × 3.49 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.67 mm6.59 mm1.23 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateHRD 180000005440
Side View
Table 67.0%CrownGirdlePavilionCulet: NoneDepth 53.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
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Price History

Last verified: Nov 5
Current: €3,899 EUR|Low: €3,645 EUR|High: €4,052 EUR|Avg: €3,858 EUR|+1.8%
Retailer 1
Retailer 2
Yorxs
November 7, 2026
Retailer 2€3,645 EUR
Retailer 1€3,899 EUR
Yorxs€4,042 EUR

41 data points across 3 retailers

3 retailers€3,411 EUR to €4,042 EUR

B
Cheapest Retailer
-
€3,411 EUR
C
Retailer 2
-
€3,899 EUR
View
Most Expensive
C
Yorxs
357010312 · Nov 6
€4,042 EUR
View
2 more retailers have this diamond
Prices start from €3,411 EURSave up to €631 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
€3,411 EUR