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Round|Natural|GIA

1.04ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2556486046

Certificate GIA 2556486046

Diamond specifications and retailer prices

From $3,251 AUD
As of November 6, 2026
Save $2,010 AUD (38%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,338 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.04ct natural round diamond

This 1.04ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556486046. Listed at 7 retailers as of November 4, 2026, with a 62% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.04
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2556486046
Dimensions6.45 × 6.48 × 4.04 mm
L/W Ratio1.00
Star length45%
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural
Top View
6.45 mm6.48 mm1.04 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556486046
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,251 AUD|Low: $1,997 AUD|High: $5,303 AUD|Avg: $3,397 AUD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$2,398 AUD
Retailer 8$2,643 AUD
Retailer 1$3,251 AUD
Retailer 6$3,493 AUD
Retailer 2$3,510 AUD
Retailer 3$3,674 AUD
Retailer 4$4,080 AUD
Retailer 5$5,261 AUD

30 data points across 8 retailers

7 retailers$3,251 AUD to $5,261 AUD

B+
Cheapest Retailer
-
$3,251 AUD
B
Retailer 2
-
$3,493 AUD
View
B+
Retailer 3
-
$3,510 AUD
View
B+
Retailer 4
-
$3,674 AUD
View
B
Retailer 5
-
$4,080 AUD
View
B
Retailer 6
-
$5,261 AUD
View
Most Expensive
NZ Jewellers
c8f2c435-a1d9-4ec7-8597-da66445bfc6e · Sep 28
$6,338 AUD
$4,437 USD
View
Price last confirmed 39 days ago
6 more retailers have this diamond
Prices start from $3,251 AUDSave up to $2,010 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.

B+
1.04ct Round
$3,251 AUD