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Round|Natural|GIA

0.64ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 7518714449

Certificate GIA 7518714449

Diamond specifications and retailer prices

From $514 AUD
As of November 6, 2026
Save $2,161 AUD (81%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,676 AUD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.64ct natural round diamond

This 0.64ct 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 7518714449. Listed at 8 retailers as of November 4, 2026, with prices from $514 to $2,676, a $2,161 spread on the same certified stone. NZ Jewellers lists it at $2,676. 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

0.64
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7518714449
Dimensions5.46 × 5.50 × 3.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Crystal
Top View
5.46 mm5.50 mm0.64 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7518714449
Side View
Table 56.0%Crown 36°Girdle: MediumPavilion 41.2°Culet: NDepth 63.3%

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 6
Current: $2,676 AUD|Low: $514 AUD|High: $2,676 AUD|Avg: $995 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$514 AUD
Retailer 8$640 AUD
Retailer 3$736 AUD
Retailer 5$859 AUD
Retailer 10$870 AUD
Retailer 7$884 AUD
Retailer 4$950 AUD
Retailer 9$1,027 AUD
Retailer 6$1,613 AUD
NZ Jewellers$2,676 AUD

9 data points across 10 retailers

8 retailers$514 AUD to $2,676 AUD

A
Cheapest Retailer
-
$514 AUD
Retailer 2
-
$640 AUD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$736 AUD
View
A
Retailer 4
-
$859 AUD
View
B+
Retailer 5
-
$884 AUD
View
B+
Retailer 6
-
$950 AUD
View
B
Retailer 7
-
$1,613 AUD
View
Most Expensive
B
NZ Jewellers
5187535e-c945-4af1-bc4c-e94a65c36ace · Nov 4
$2,676 AUD
$1,873 USD
View
7 more retailers have this diamond
Prices start from $514 AUDSave up to $2,161 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
0.64ct Round
$514 AUD