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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 $1,115 NZD
As of November 6, 2026
Save $3,008 NZD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,180 NZD 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

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: $4,123 NZD|Low: $1,315 NZD|High: $4,161 NZD|Avg: $1,759 NZD|-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$1,315 NZD
Retailer 12$1,315 NZD
Retailer 6$1,343 NZD
Retailer 2$1,364 NZD
Retailer 13$1,366 NZD
Retailer 11$1,398 NZD
Retailer 5$1,517 NZD
Retailer 4$1,532 NZD
Retailer 14$1,549 NZD
Retailer 7$1,555 NZD
Retailer 8$1,592 NZD
Retailer 9$1,850 NZD
Retailer 10$2,405 NZD
NZ Jewellers$4,123 NZD

35 data points across 14 retailers

18 retailers$1,115 NZD to $4,123 NZD

A
Cheapest Retailer
-
$1,115 NZD
A
Retailer 2
-
$1,315 NZD
View
Retailer 3
-
$1,315 NZD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,343 NZD
View
A
Retailer 5
-
$1,364 NZD
View
A
Retailer 6
-
$1,366 NZD
View
Retailer 7
-
$1,370 NZD
View
Price last confirmed 117 days ago
A
Retailer 8
-
$1,398 NZD
View
A
Retailer 9
-
$1,517 NZD
View
A
Retailer 10
-
$1,532 NZD
View
Retailer 11
-
$1,539 NZD
View
Price last confirmed 46 days ago
A
Retailer 12
-
$1,549 NZD
View
A
Retailer 13
-
$1,555 NZD
View
A
Retailer 14
-
$1,592 NZD
View
A
Retailer 15
-
$1,850 NZD
View
B+
Retailer 16
-
$2,405 NZD
View
B
Retailer 17
-
$4,123 NZD
View
Most Expensive
NZ Jewellers
80f18276-4425-4ebe-b270-2f6649426dad · Sep 19
$4,180 NZD
$2,350 USD
View
Price last confirmed 47 days ago
17 more retailers have this diamond
Prices start from $1,115 NZDSave up to $3,008 NZD

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
$1,115 NZD