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Heart|Natural|GIA

0.31ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1563394559

Certificate GIA 1563394559

Diamond specifications and retailer prices

From $376 AUD
₹25,165 INR
As of November 1, 2026
Save $841 AUD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,020 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural heart diamond

This 0.31ct natural heart sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563394559. Listed at 12 retailers as of November 1, 2026, with a 223% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.31
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563394559
Dimensions3.94 × 4.59 × 2.85 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
3.94 mm4.59 mm0.31 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1563394559
Side View
Table 61.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 62.0%

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 1
Current: $2,020 AUD|Low: $375 AUD|High: $2,020 AUD|Avg: $829 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5$376 AUD
Retailer 10$527 AUD
Retailer 9$568 AUD
Retailer 8$588 AUD
Retailer 3$608 AUD
Retailer 4$686 AUD
Retailer 11$709 AUD
Retailer 7$722 AUD
Retailer 2$1,067 AUD
Retailer 6$1,217 AUD
NZ Jewellers$2,020 AUD

33 data points across 11 retailers

12 retailers$376 AUD to $1,217 AUD

A
Cheapest Retailer
-
$376 AUD
₹25,165 INR
A
Retailer 2
-
$527 AUD
$370 USD
View
B+
Retailer 3
-
$568 AUD
$399 USD
View
B+
Retailer 4
-
$588 AUD
$413 USD
View
B+
Retailer 5
-
$608 AUD
$427 USD
View
B+
Retailer 6
-
$686 AUD
£379 GBP
View
B+
Retailer 7
-
$709 AUD
$498 USD
View
B+
Retailer 8
-
$722 AUD
£400 GBP
View
B
Retailer 9
-
$729 AUD
$512 USD
View
B
Retailer 10
-
$1,067 AUD
£590 GBP
View
B
Retailer 11
-
$1,217 AUD
£673 GBP
View
Most Expensive
NZ Jewellers
dcd3039b-ca9c-4229-a5bd-cd82c731c866 · Oct 30
$2,020 AUD
$1,419 USD
View
Price under review
11 more retailers have this diamond
Prices start from $376 AUDSave up to $841 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
0.31ct Heart
$376 AUD