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Round|Natural|GIA

1.33ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7561568121

Certificate GIA 7561568121

Diamond specifications and retailer prices

From $4,004 AUD
As of November 6, 2026
Save $4,745 AUD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,750 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.33ct natural round diamond

This 1.33ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7561568121. Listed at 12 retailers as of November 5, 2026, with prices from $4,004 to $8,750, a $4,745 spread on the same certified stone. NZ Jewellers lists it at $8,750. 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

1.33
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7561568121
Dimensions7.00 × 7.03 × 4.38 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Pinpoint
Top View
7.00 mm7.03 mm1.33 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7561568121
Side View
Table 56.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
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: $8,750 AUD|Low: $4,001 AUD|High: $8,750 AUD|Avg: $5,057 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2$4,004 AUD
Retailer 10$4,028 AUD
Retailer 3$4,186 AUD
Retailer 11$4,186 AUD
Retailer 12$4,347 AUD
Retailer 5$4,404 AUD
Retailer 4$4,830 AUD
Retailer 8$4,863 AUD
Retailer 6$4,880 AUD
Retailer 7$5,108 AUD
Retailer 9$6,980 AUD
NZ Jewellers$8,750 AUD

13 data points across 12 retailers

12 retailers$4,004 AUD to $8,750 AUD

A
Cheapest Retailer
-
$4,004 AUD
B+
Retailer 2
-
$4,028 AUD
View
Retailer 3
-
$4,186 AUD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$4,186 AUD
View
B+
Retailer 5
-
$4,347 AUD
View
B+
Retailer 6
-
$4,404 AUD
View
B+
Retailer 7
-
$4,830 AUD
View
B+
Retailer 8
-
$4,863 AUD
View
B+
Retailer 9
-
$4,880 AUD
View
B
Retailer 10
-
$5,108 AUD
View
B
Retailer 11
-
$6,980 AUD
View
Most Expensive
B
NZ Jewellers
318925d1-9218-4b2b-8a46-aa1e9a5821c1 · Nov 5
$8,750 AUD
$6,125 USD
View
11 more retailers have this diamond
Prices start from $4,004 AUDSave up to $4,745 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
1.33ct Round
$4,004 AUD