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Round|Natural|GIA

0.63ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6561590342

Certificate GIA 6561590342

Diamond specifications and retailer prices

From $759 AUD
As of November 3, 2026
Save $197 AUD (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,391 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.63ct natural round diamond

This 0.63ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561590342. Listed at 4 retailers as of October 31, 2026, with a 26% 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

0.63
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6561590342
Dimensions5.46 × 5.48 × 3.43 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
5.46 mm5.48 mm0.63 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561590342
Side View
Table 58.0%Crown 34.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $2,391 AUD|Low: $759 AUD|High: $2,391 AUD|Avg: $1,436 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 2$759 AUD
Retailer 3$956 AUD
Retailer 4$1,140 AUD
NZ Jewellers$2,391 AUD

11 data points across 4 retailers

4 retailers$759 AUD to $956 AUD

A
Cheapest Retailer
-
$759 AUD
B+
Retailer 2
-
$956 AUD
View
Retailer 3
-
$1,140 AUD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
55bcf3d0-4d89-4462-b57f-ebe373807315 · Oct 30
$2,391 AUD
$1,674 USD
View
Price last confirmed 7 days ago
3 more retailers have this diamond
Prices start from $759 AUDSave up to $197 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 Round
$759 AUD