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Round|Natural|GIA

0.63ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6501152456

Certificate GIA 6501152456

Diamond specifications and retailer prices

From $530 AUD
As of November 1, 2026
Save $1,137 AUD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,610 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 6501152456. Listed at 14 retailers as of November 1, 2026, with a 215% 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
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6501152456
Dimensions5.52 × 5.50 × 3.42 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.52 mm5.50 mm0.63 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6501152456
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.0%

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 1
Current: $2,610 AUD|Low: $500 AUD|High: $2,688 AUD|Avg: $951 AUD|-2.9%
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 5, 2026
Retailer 10$530 AUD
Retailer 5$711 AUD
Retailer 14$721 AUD
Retailer 8$723 AUD
Retailer 3$733 AUD
Retailer 4$733 AUD
Retailer 12$743 AUD
Retailer 6$786 AUD
Retailer 9$879 AUD
Retailer 7$899 AUD
Retailer 11$909 AUD
Retailer 2$969 AUD
Retailer 13$1,667 AUD
NZ Jewellers$2,610 AUD

28 data points across 14 retailers

14 retailers$530 AUD to $1,667 AUD

A
Cheapest Retailer
-
$530 AUD
Retailer 2
-
$711 AUD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$721 AUD
View
A
Retailer 4
-
$723 AUD
View
Retailer 5
-
$733 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$733 AUD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$743 AUD
View
A
Retailer 8
-
$786 AUD
View
A
Retailer 9
-
$879 AUD
View
B+
Retailer 10
-
$899 AUD
View
A
Retailer 11
-
$909 AUD
View
B+
Retailer 12
-
$969 AUD
View
B
Retailer 13
-
$1,667 AUD
View
Most Expensive
NZ Jewellers
32eef8f0-8868-490c-9c44-e8377f654948 · Oct 30
$2,610 AUD
$1,827 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from $530 AUDSave up to $1,137 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
$530 AUD