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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7551885928

Certificate GIA 7551885928

Diamond specifications and retailer prices

From $470 AUD
As of November 6, 2026
Save $2,011 AUD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,481 AUD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551885928. Listed at 11 retailers as of November 4, 2026, with prices from $470 to $2,481, a $2,011 spread on the same certified stone. NZ Jewellers lists it at $2,481. 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

0.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7551885928
Dimensions5.06 × 5.08 × 3.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Crystal, Feather
Top View
5.06 mm5.08 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551885928
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.7%

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: $2,481 AUD|Low: $470 AUD|High: $2,481 AUD|Avg: $976 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$470 AUD
Retailer 7$540 AUD
Retailer 3$648 AUD
Retailer 4$675 AUD
Retailer 8$697 AUD
Retailer 10$840 AUD
Retailer 9$859 AUD
Retailer 11$889 AUD
Retailer 5$1,036 AUD
Retailer 6$1,493 AUD
NZ Jewellers$2,481 AUD

45 data points across 11 retailers

11 retailers$470 AUD to $2,481 AUD

A
Cheapest Retailer
-
$470 AUD
A
Retailer 2
-
$540 AUD
View
A
Retailer 3
-
$648 AUD
View
A
Retailer 4
-
$675 AUD
View
A
Retailer 5
-
$697 AUD
View
B+
Retailer 6
-
$857 AUD
View
B+
Retailer 7
-
$859 AUD
View
B+
Retailer 8
-
$889 AUD
View
B
Retailer 9
-
$1,036 AUD
View
B
Retailer 10
-
$1,493 AUD
View
Most Expensive
B
NZ Jewellers
32ccb0fc-4396-44df-8d8a-3e4ce5cbf3b9 · Nov 4
$2,481 AUD
$1,705 USD
View
10 more retailers have this diamond
Prices start from $470 AUDSave up to $2,011 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
0.50ct Round
$470 AUD