CaratHunter
Plans
Heart|Natural|HRD

1.03ct J SI1 Heart Natural Diamond

EX • J/SI1 • HRD 170003042404

Certificate HRD 170003042404

Diamond specifications and retailer prices

From $3,540 SGD
As of November 5, 2026
Save $2,911 SGD (45%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $6,450 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded J 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 170003042404. Listed at 3 retailers as of November 4, 2026, with prices from $3,540 to $6,450, a $2,911 spread on the same certified stone. MOH London lists it at $6,450. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 170003042404
Dimensions6.18 × 7.14 × 3.64 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.18 mm7.14 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateHRD 170003042404
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 51.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,450 SGD|Low: $3,540 SGD|High: $6,546 SGD|Avg: $4,429 SGD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$3,540 SGD
Retailer 4$3,826 SGD
Retailer 2$4,143 SGD
Retailer 3$4,161 SGD
MOH London$6,450 SGD

37 data points across 5 retailers

3 retailers$3,540 SGD to $6,450 SGD

B
Cheapest Retailer
-
$3,540 SGD
B
Retailer 2
-
$4,143 SGD
View
Most Expensive
C
MOH London
1C8966880 · Nov 4
$6,450 SGD
£3,963 GBP
View
2 more retailers have this diamond
Prices start from $3,540 SGDSave up to $2,911 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.

B
1.03ct Heart
$3,540 SGD