Heart|Natural|HRD

1.21ct H SI1 Heart Natural Diamond

ID • H/SI1 • HRD 260000182067

Certificate HRD 260000182067

Diamond specifications and retailer prices

From $2,230 USD
As of November 4, 2026
Save $1,605 USD (42%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,775 USD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000182067. Listed at 7 retailers as of November 2, 2026, with a 72% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.36°
Pavilion angle40.88°
OriginNatural
Grading LabHRD
CertificateHRD 260000182067
Dimensions7.33 × 6.52 × 4.40 mm
L/W Ratio1.12
Girdle conditionMedium
Top View
7.33 mm6.52 mm1.21 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000182067
Side View
Table 61.0%Crown 39.36°GirdlePavilion 40.88°CuletDepth 60.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: $3,835 USD|Low: $2,230 USD|High: $4,050 USD|Avg: $3,131 USD|-4.1%
Retailer 1
Retailer 2
November 1, 2026
Retailer 2$2,230 USD
Retailer 1$3,835 USD

11 data points across 2 retailers

7 retailers$2,230 USD to $3,835 USD

B+
Cheapest Retailer
-
$2,230 USD
Retailer 2
-
$2,284 USD
View
Price last confirmed 41 days ago
Retailer 3
-
$2,284 USD
View
Price last confirmed 29 days ago
Retailer 4
-
$2,389 USD
View
Price last confirmed 36 days ago
B
Retailer 5
-
$3,835 USD
View
Retailer 6
-
$4,775 USD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
7b71120a-a33c-490a-867d-2f7188f895e1 · Sep 28
$4,775 USD
View
Price last confirmed 39 days ago
6 more retailers have this diamond
Prices start from $2,230 USDSave up to $1,605 USD

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
$2,230 USD