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Heart|Natural|GIA

0.63ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 5556013420

Certificate GIA 5556013420

Diamond specifications and retailer prices

From $856 AUD
$601 USD
As of November 2, 2026
Save $198 AUD (19%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,073 AUD at Brilliance · As of October 5, 2026
View at Brilliance

About this 0.63ct natural heart diamond

This 0.63ct natural heart sits in the half to three-quarter 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 5556013420. Listed at 5 retailers as of November 2, 2026, with a relatively tight 23% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.63
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556013420
Dimensions5.23 × 6.00 × 3.56 mm
L/W Ratio1.15
Top View
5.23 mm6.00 mm0.63 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556013420
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.3%

Caratlytics Score

How it works →
A
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: $1,073 AUD|Low: $820 AUD|High: $1,156 AUD|Avg: $1,001 AUD|-4.3%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3$856 AUD
Retailer 5$883 AUD
Retailer 4$945 AUD
Retailer 2$1,053 AUD
Brilliance$1,073 AUD

40 data points across 5 retailers

5 retailers$856 AUD to $1,053 AUD

A
Cheapest Retailer
-
$856 AUD
$601 USD
Final sale: no returns
A
Retailer 2
-
$883 AUD
MYR 2,527 MYR
View
A
Retailer 3
-
$945 AUD
SGD 897 SGD
View
A
Retailer 4
-
$1,053 AUD
£583 GBP
View
Most Expensive
Brilliance
D40811360 · Oct 5
$1,073 AUD
$754 USD
View
Price last confirmed 27 days ago
4 more retailers have this diamond
Prices start from $856 AUDSave up to $198 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
0.63ct Heart
$856 AUD