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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 €3,409 EUR
As of November 2, 2026
Save €641 EUR (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €4,050 EUR at Yorxs · As of November 2, 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 2, 2026, with prices from €3,409 to €4,050, a €641 spread on the same certified stone. Yorxs lists it at €4,050. 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
Color
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
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €3,935 EUR|Low: €3,409 EUR|High: €4,050 EUR|Avg: €3,740 EUR|+2.8%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 2, 2026
Retailer 3€3,409 EUR
Retailer 2€3,643 EUR
Retailer 1€3,935 EUR
Yorxs€4,050 EUR

39 data points across 4 retailers

3 retailers€3,409 EUR to €4,050 EUR

B
Cheapest Retailer
-
€3,409 EUR
C
Retailer 2
-
€3,935 EUR
£3,462 GBP
View
Most Expensive
C
Yorxs
357010312 · Nov 2
€4,050 EUR
View
2 more retailers have this diamond
Prices start from €3,409 EURSave up to €641 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
€3,409 EUR