CaratHunter
Plans
Heart|Natural|HRD

1.03ct K SI1 Heart Natural Diamond

EX • K/SI1 • HRD 250000289418

Certificate HRD 250000289418

Diamond specifications and retailer prices

From $1,423 SGD
As of November 5, 2026
Save $2,121 SGD (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,544 SGD 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 $1,423 to $3,544, a $2,121 spread on the same certified stone. NZ Jewellers lists it at $3,544. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,544 SGD|Low: $1,352 SGD|High: $3,600 SGD|Avg: $2,024 SGD|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$1,423 SGD
Retailer 2$1,424 SGD
Retailer 6$1,453 SGD
Retailer 4$1,508 SGD
Retailer 3$2,661 SGD
NZ Jewellers$3,544 SGD

40 data points across 6 retailers

6 retailers$1,423 SGD to $3,544 SGD

A
Cheapest Retailer
-
$1,423 SGD
A
Retailer 2
-
$1,424 SGD
View
A
Retailer 3
-
$1,453 SGD
View
A
Retailer 4
-
$1,508 SGD
View
B
Retailer 5
-
$2,661 SGD
View
Most Expensive
B
NZ Jewellers
2c079ed0-89f1-42bb-b15c-d37b2b95e63d · Nov 3
$3,544 SGD
$2,765 USD
View
5 more retailers have this diamond
Prices start from $1,423 SGDSave up to $2,121 SGD

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
$1,423 SGD