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Round|Natural|GIA

0.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6552316143

Certificate GIA 6552316143

Diamond specifications and retailer prices

From $194 AUD
As of November 6, 2026
Save $1,104 AUD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,299 AUD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.3ct natural round diamond

This 0.3ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552316143. Listed at 17 retailers as of November 4, 2026, with prices from $194 to $1,299, a $1,104 spread on the same certified stone. NZ Jewellers lists it at $1,299. 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

0.30
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552316143
Dimensions4.26 × 4.29 × 2.67 mm
L/W Ratio1.01
Top View
4.26 mm4.29 mm0.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552316143
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

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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 6
Current: $1,299 AUD|Low: $194 AUD|High: $1,346 AUD|Avg: $458 AUD|-3.5%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 2$194 AUD
Retailer 4$209 AUD
Retailer 3$287 AUD
Retailer 6$313 AUD
Retailer 7$314 AUD
Retailer 12$320 AUD
Retailer 16$360 AUD
Retailer 8$376 AUD
Retailer 15$386 AUD
Retailer 9$423 AUD
Retailer 11$446 AUD
Retailer 13$471 AUD
Retailer 10$504 AUD
Retailer 5$587 AUD
Retailer 14$660 AUD
NZ Jewellers$1,299 AUD

22 data points across 16 retailers

17 retailers$194 AUD to $1,299 AUD

A
Cheapest Retailer
-
$194 AUD
A
Retailer 2
-
$209 AUD
View
A
Retailer 3
-
$256 AUD
View
A
Retailer 4
-
$287 AUD
View
Retailer 5
-
$313 AUD
View
Price last confirmed 10 days ago
Retailer 6
-
$314 AUD
View
Price last confirmed 11 days ago
A
Retailer 7
-
$320 AUD
View
A
Retailer 8
-
$360 AUD
View
Retailer 9
-
$376 AUD
View
Price last confirmed 12 days ago
A
Retailer 10
-
$386 AUD
View
B+
Retailer 11
-
$423 AUD
View
B+
Retailer 12
-
$446 AUD
View
B+
Retailer 13
-
$471 AUD
View
B+
Retailer 14
-
$504 AUD
View
B
Retailer 15
-
$587 AUD
View
B+
Retailer 16
-
$660 AUD
View
Most Expensive
B
NZ Jewellers
6083172f-808f-4613-a647-e8ada6101d18 · Nov 4
$1,299 AUD
$909 USD
View
16 more retailers have this diamond
Prices start from $194 AUDSave up to $1,104 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
0.30ct Round
$194 AUD