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Round|Natural|GIA

0.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7566281856

Certificate GIA 7566281856

Diamond specifications and retailer prices

From $187 AUD
As of November 6, 2026
Save $1,051 AUD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,239 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 7566281856. Listed at 17 retailers as of November 4, 2026, with prices from $187 to $1,239, a $1,051 spread on the same certified stone. NZ Jewellers lists it at $1,239. 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 angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7566281856
Dimensions4.38 × 4.35 × 2.66 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal
Top View
4.38 mm4.35 mm0.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7566281856
Side View
Table 56.0%Crown 33°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.9%

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: $1,239 AUD|Low: $187 AUD|High: $1,257 AUD|Avg: $436 AUD|-0.6%
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
Retailer 17
November 6, 2026
Retailer 2$187 AUD
Retailer 15$201 AUD
Retailer 9$237 AUD
Retailer 7$273 AUD
Retailer 13$297 AUD
Retailer 8$299 AUD
Retailer 10$306 AUD
Retailer 17$366 AUD
Retailer 4$380 AUD
Retailer 14$397 AUD
Retailer 3$426 AUD
Retailer 12$457 AUD
Retailer 16$491 AUD
Retailer 11$546 AUD
Retailer 6$574 AUD
Retailer 5$630 AUD
NZ Jewellers$1,239 AUD

18 data points across 17 retailers

17 retailers$187 AUD to $1,239 AUD

A
Cheapest Retailer
-
$187 AUD
A
Retailer 2
-
$201 AUD
View
A
Retailer 3
-
$237 AUD
View
A
Retailer 4
-
$273 AUD
View
A
Retailer 5
-
$297 AUD
View
Retailer 6
-
$299 AUD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$306 AUD
View
A
Retailer 8
-
$366 AUD
View
A
Retailer 9
-
$380 AUD
View
A
Retailer 10
-
$397 AUD
View
A
Retailer 11
-
$426 AUD
View
B+
Retailer 12
-
$457 AUD
View
B+
Retailer 13
-
$491 AUD
View
B+
Retailer 14
-
$546 AUD
View
B+
Retailer 15
-
$574 AUD
View
B+
Retailer 16
-
$630 AUD
View
Most Expensive
B
NZ Jewellers
27487429-aca4-45c3-a38f-b0dd9735acf0 · Nov 4
$1,239 AUD
$867 USD
View
16 more retailers have this diamond
Prices start from $187 AUDSave up to $1,051 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
$187 AUD