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Heart|Natural|HRD

3.11ct K SI1 Heart Natural Diamond

ID • K/SI1 • HRD 250000319361

Certificate HRD 250000319361

Diamond specifications and retailer prices

From $18,842 AUD
As of November 6, 2026
Save $10,256 AUD (35%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $29,098 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 3.11ct natural heart diamond

This 3.11ct natural heart sits in the three to five 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 250000319361. Listed at 8 retailers as of November 5, 2026, with prices from $18,842 to $29,098, a $10,256 spread on the same certified stone. NZ Jewellers lists it at $29,098. 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

3.11
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 250000319361
Dimensions10.16 × 8.77 × 6.03 mm
L/W Ratio1.16
Culet sizePointed
Top View
10.16 mm8.77 mm3.11 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 250000319361
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 59.4%

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 6
Current: $29,098 AUD|Low: $18,842 AUD|High: $29,098 AUD|Avg: $22,596 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 3$18,842 AUD
Retailer 5$19,271 AUD
Retailer 8$20,556 AUD
Retailer 7$20,878 AUD
Retailer 6$21,680 AUD
Retailer 2$21,872 AUD
Retailer 4$27,193 AUD
NZ Jewellers$29,098 AUD

44 data points across 8 retailers

8 retailers$18,842 AUD to $29,098 AUD

A
Cheapest Retailer
-
$18,842 AUD
Retailer 2
-
$19,271 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$20,556 AUD
View
B+
Retailer 4
-
$20,878 AUD
View
B+
Retailer 5
-
$21,680 AUD
View
B+
Retailer 6
-
$21,872 AUD
View
B+
Retailer 7
-
$27,193 AUD
View
Most Expensive
B
NZ Jewellers
407a74e7-a5ff-46e8-9683-342134a44a47 · Nov 5
$29,098 AUD
$19,993 USD
View
7 more retailers have this diamond
Prices start from $18,842 AUDSave up to $10,256 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.

A
3.11ct Heart
$18,842 AUD