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Heart|Natural|HRD

1.05ct K SI1 Heart Natural Diamond

EX • K/SI1 • HRD 200000048387

Certificate HRD 200000048387

Diamond specifications and retailer prices

From $3,599 AUD
As of November 6, 2026
Save $2,123 AUD (37%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $5,723 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.05ct natural heart diamond

This 1.05ct 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 200000048387. Listed at 2 retailers as of November 4, 2026, with prices from $3,599 to $5,723, a $2,123 spread on the same certified stone. MOH London lists it at $5,723. 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

1.05
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 200000048387
Dimensions5.94 × 7.29 × 3.39 mm
L/W Ratio1.23
Girdle conditionFaceted
Top View
5.94 mm7.29 mm1.05 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateHRD 200000048387
Side View
Table 63.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 46.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $5,723 AUD|Low: $3,359 AUD|High: $5,808 AUD|Avg: $4,196 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$3,359 AUD
Retailer 2$3,599 AUD
Retailer 3$4,097 AUD
MOH London$5,723 AUD

36 data points across 4 retailers

2 retailers$3,599 AUD to $5,723 AUD

B
Cheapest Retailer
-
$3,599 AUD
Most Expensive
C
MOH London
B20C85BE9 · Nov 4
$5,723 AUD
£3,096 GBP
View
1 more retailer has this diamond
Prices start from $3,599 AUDSave up to $2,123 AUD

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
1.05ct Heart
$3,599 AUD