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Heart|Natural|HRD

1.23ct K SI2 Heart Natural Diamond

K/SI2 • HRD 170003116667

Certificate HRD 170003116667

Diamond specifications and retailer prices

From $5,249 NZD
As of November 6, 2026
Save $2,606 NZD (33%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $7,856 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included) and certified by HRD 170003116667. Listed at 2 retailers as of November 4, 2026, with prices from $5,249 to $7,856, a $2,606 spread on the same certified stone. MOH London lists it at $7,856. 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
K
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 170003116667
Dimensions6.13 × 6.70 × 3.76 mm
L/W Ratio1.09
Girdle conditionFaceted
Top View
6.13 mm6.70 mm1.23 ctK / SI2
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateHRD 170003116667
Side View
Table 67.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 56.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $7,856 NZD|Low: $4,580 NZD|High: $7,970 NZD|Avg: $5,908 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$4,580 NZD
Retailer 2$5,249 NZD
MOH London$7,856 NZD

23 data points across 3 retailers

2 retailers$5,249 NZD to $7,856 NZD

B
Cheapest Retailer
-
$5,249 NZD
Most Expensive
C
MOH London
110CC3515 · Nov 4
$7,856 NZD
£3,429 GBP
View
1 more retailer has this diamond
Prices start from $5,249 NZDSave up to $2,606 NZD

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
$5,249 NZD