Heart|Natural|GIA

0.42ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6515482839

Certificate GIA 6515482839

Diamond specifications and retailer prices

From $662 AUD

£366 GBP

As of November 2, 2026

14 retailers carry this diamond

Most expensive: $2,634 AUD at NZ Jewellers · As of October 18, 2026

View at NZ Jewellers

About this 0.42ct natural heart diamond

This 0.42ct natural heart sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6515482839. Listed at 14 retailers as of November 2, 2026. 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

0.42

Carat

Colour

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

Crown angle37.61°

Pavilion angle38.78°

OriginNatural

Grading LabGIA

CertificateGIA 6515482839

Dimensions4.45 × 5.19 × 3.09 mm

L/W Ratio1.17

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 6515482839

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: $2,634 AUD|Low: $650 AUD|High: $2,634 AUD|Avg: $997 AUD

NZ Jewellers

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

November 2, 2026

Retailer 2$662 AUD

Retailer 11$688 AUD

Retailer 4$740 AUD

Retailer 13$740 AUD

Retailer 5$761 AUD

Retailer 9$793 AUD

Retailer 12$893 AUD

Retailer 8$912 AUD

Retailer 6$975 AUD

Retailer 3$1,071 AUD

Retailer 14$1,100 AUD

Retailer 7$1,365 AUD

Retailer 10$1,558 AUD

NZ Jewellers$2,634 AUD

46 data points across 14 retailers

14 retailers

Cheapest Retailer

$662 AUD

£366 GBP

Retailer 2

$688 AUD

$483 USD

View

Price last confirmed 15 days ago

Retailer 3

$740 AUD

$520 USD

View

Price last confirmed 16 days ago

Retailer 4

$793 AUD

$557 USD

View

Price last confirmed 14 days ago

Retailer 5

$874 AUD

$614 USD

View

Price last confirmed 15 days ago

Retailer 6

$893 AUD

$627 USD

View

Price last confirmed 13 days ago

Retailer 7

$912 AUD

£504 GBP

View

Price last confirmed 10 days ago

Retailer 8

$913 AUD

$641 USD

View

Price last confirmed 14 days ago

Retailer 9

$975 AUD

$685 USD

View

Price last confirmed 13 days ago

Retailer 10

$1,071 AUD

ZAR 12,156 ZAR

View

Price last confirmed 29 days ago

Retailer 11

$1,100 AUD

View

Price last confirmed 28 days ago

Retailer 12

$1,365 AUD

£755 GBP

View

Price last confirmed 14 days ago

Retailer 13

$1,558 AUD

£862 GBP

View

Price last confirmed 14 days ago

Most Expensive

NZ Jewellers

b61d1706-0b99-4ac6-8a3f-f74469a6ef83 · Oct 18

$2,634 AUD

$1,850 USD

View

Price under review

13 more retailers have this diamond

Prices start from $662 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.

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0.42ct Heart

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