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Round|Natural|GIA

3.03ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1558477975

Certificate GIA 1558477975

Diamond specifications and retailer prices

From $30,310 AUD
As of November 6, 2026
Save $10,415 AUD (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $40,725 AUD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.03ct natural round diamond

This 3.03ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558477975. Listed at 7 retailers as of November 6, 2026, with prices from $30,310 to $40,725, a $10,415 spread on the same certified stone. The Diamond Guys lists it at $40,725. 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

3.03
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1558477975
Dimensions9.32 × 9.36 × 5.62 mm
L/W Ratio1.00
Key to symbols
Feather, Crystal, Twinning Wisp
Top View
9.32 mm9.36 mm3.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558477975
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.2%

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: $31,274 AUD|Low: $29,996 AUD|High: $40,894 AUD|Avg: $35,274 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
The Diamond Guys
November 6, 2026
Retailer 4$30,310 AUD
Retailer 1$31,274 AUD
Retailer 5$32,356 AUD
Retailer 3$36,091 AUD
Retailer 2$40,675 AUD
The Diamond Guys$40,725 AUD

45 data points across 6 retailers

7 retailers$30,310 AUD to $40,725 AUD

A
Cheapest Retailer
-
$30,310 AUD
A
Retailer 2
-
$31,274 AUD
View
B+
Retailer 3
-
$32,054 AUD
View
B+
Retailer 4
-
$32,356 AUD
View
B+
Retailer 5
-
$36,091 AUD
View
B
Retailer 6
-
$40,675 AUD
View
Most Expensive
B
The Diamond Guys
1982806790 · Nov 6
$40,725 AUD
$28,509 USD
View
6 more retailers have this diamond
Prices start from $30,310 AUDSave up to $10,415 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
3.03ct Round
$30,310 AUD