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Round|Natural|GIA

0.81ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6445924041

Certificate GIA 6445924041

Diamond specifications and retailer prices

From $896 AUD
As of November 6, 2026
Save $2,416 AUD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,357 AUD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 0.81ct natural round diamond

This 0.81ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6445924041. Listed at 18 retailers as of November 5, 2026, with a 270% 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

0.81
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6445924041
Dimensions6.03 × 5.99 × 3.65 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.03 mm5.99 mm0.81 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445924041
Side View
Table 58.0%Crown 33°Girdle: MED-NULPavilion 40.8°Culet: NoneDepth 60.8%

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: $3,311 AUD|Low: $1,056 AUD|High: $3,341 AUD|Avg: $1,412 AUD|-0.9%
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
November 6, 2026
Retailer 3$1,056 AUD
Retailer 12$1,056 AUD
Retailer 6$1,079 AUD
Retailer 2$1,096 AUD
Retailer 13$1,097 AUD
Retailer 11$1,123 AUD
Retailer 5$1,219 AUD
Retailer 4$1,230 AUD
Retailer 14$1,244 AUD
Retailer 7$1,249 AUD
Retailer 8$1,279 AUD
Retailer 9$1,486 AUD
Retailer 10$1,931 AUD
NZ Jewellers$3,311 AUD

35 data points across 14 retailers

18 retailers$896 AUD to $3,311 AUD

A
Cheapest Retailer
-
$896 AUD
A
Retailer 2
-
$1,056 AUD
View
Retailer 3
-
$1,056 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,079 AUD
View
A
Retailer 5
-
$1,096 AUD
View
A
Retailer 6
-
$1,097 AUD
View
Retailer 7
-
$1,100 AUD
View
Price last confirmed 117 days ago
A
Retailer 8
-
$1,123 AUD
View
A
Retailer 9
-
$1,219 AUD
View
A
Retailer 10
-
$1,230 AUD
View
Retailer 11
-
$1,236 AUD
View
Price last confirmed 46 days ago
A
Retailer 12
-
$1,244 AUD
View
A
Retailer 13
-
$1,249 AUD
View
A
Retailer 14
-
$1,279 AUD
View
A
Retailer 15
-
$1,486 AUD
View
B+
Retailer 16
-
$1,931 AUD
View
B
Retailer 17
-
$3,311 AUD
View
Most Expensive
NZ Jewellers
80f18276-4425-4ebe-b270-2f6649426dad · Sep 19
$3,357 AUD
$2,350 USD
View
Price last confirmed 47 days ago
17 more retailers have this diamond
Prices start from $896 AUDSave up to $2,416 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
0.81ct Round
$896 AUD