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Heart|Natural|HRD

1.21ct I SI1 Heart Natural Diamond

VG • I/SI1 • HRD 170002949845

Certificate HRD 170002949845

Diamond specifications and retailer prices

From $5,363 NZD
As of November 5, 2026
Save $4,628 NZD (46%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $9,991 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by HRD 170002949845. Listed at 4 retailers as of November 4, 2026, with prices from $5,363 to $9,991, a $4,628 spread on the same certified stone. MOH London lists it at $9,991. 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

1.21
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 170002949845
Dimensions6.74 × 7.20 × 3.44 mm
L/W Ratio1.07
Girdle conditionFaceted
Top View
6.74 mm7.20 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateHRD 170002949845
Side View
Table 65.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 47.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $9,991 NZD|Low: $5,897 NZD|High: $10,137 NZD|Avg: $7,197 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 4$5,897 NZD
Retailer 2$6,272 NZD
Retailer 3$6,573 NZD
MOH London$9,991 NZD

41 data points across 4 retailers

4 retailers$5,363 NZD to $9,991 NZD

B
Cheapest Retailer
-
$5,363 NZD
B
Retailer 2
-
$6,272 NZD
View
B
Retailer 3
-
$6,573 NZD
View
Most Expensive
C
MOH London
1F9D8CFE7 · Nov 4
$9,991 NZD
£4,361 GBP
View
3 more retailers have this diamond
Prices start from $5,363 NZDSave up to $4,628 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
1.21ct Heart
$5,363 NZD