Heart|Natural|HRD

1.03ct K SI1 Heart Natural Diamond

EX • K/SI1 • HRD 250000289418

Certificate HRD 250000289418

Diamond specifications and retailer prices

From $1,110 USD
As of November 5, 2026
Save $1,655 USD (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,765 USD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 250000289418. Listed at 6 retailers as of November 3, 2026, with prices from $1,110 to $2,765, a $1,655 spread on the same certified stone. NZ Jewellers lists it at $2,765. 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

1.03
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.99°
Pavilion angle42.11°
OriginNatural
Grading LabHRD
CertificateHRD 250000289418
Dimensions6.04 × 6.69 × 4.28 mm
L/W Ratio1.11
Girdle conditionThick
Top View
6.04 mm6.69 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000289418
Side View
Table 64.0%Crown 38.99°GirdlePavilion 42.11°CuletDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $2,765 USD|Low: $1,055 USD|High: $2,809 USD|Avg: $1,581 USD|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$1,110 USD
Retailer 2$1,111 USD
Retailer 6$1,134 USD
Retailer 4$1,177 USD
Retailer 3$2,076 USD
NZ Jewellers$2,765 USD

41 data points across 6 retailers

6 retailers$1,110 USD to $2,765 USD

A
Cheapest Retailer
-
$1,110 USD
A
Retailer 2
-
$1,111 USD
View
A
Retailer 3
-
$1,134 USD
View
A
Retailer 4
-
$1,177 USD
View
B
Retailer 5
-
$2,076 USD
View
Most Expensive
B
NZ Jewellers
2c079ed0-89f1-42bb-b15c-d37b2b95e63d · Nov 3
$2,765 USD
View
5 more retailers have this diamond
Prices start from $1,110 USDSave up to $1,655 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.

A
1.03ct Heart
$1,110 USD