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0.81ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 3505566471

Certificate GIA 3505566471

Diamond specifications and retailer prices

From $778 USD
As of November 5, 2026
Save $1,661 USD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,439 USD at NZ Jewellers · As of November 5, 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 3505566471. Listed at 9 retailers as of November 5, 2026, with prices from $778 to $2,439, a $1,661 spread on the same certified stone. NZ Jewellers lists it at $2,439. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3505566471
Dimensions5.93 × 5.95 × 3.73 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
5.93 mm5.95 mm0.81 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3505566471
Side View
Table 55.0%Crown 36.5°Girdle: Sli. ThickPavilion 40.6°Culet: NoneDepth 62.8%

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 5
Current: $2,439 USD|Low: $778 USD|High: $2,530 USD|Avg: $1,147 USD|-3.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 7$778 USD
Retailer 9$796 USD
Retailer 8$807 USD
Retailer 11$807 USD
Retailer 6$897 USD
Retailer 2$939 USD
Retailer 3$957 USD
Retailer 4$1,092 USD
Retailer 10$1,375 USD
Retailer 5$1,423 USD
NZ Jewellers$2,439 USD

28 data points across 11 retailers

9 retailers$778 USD to $2,439 USD

A
Cheapest Retailer
-
$778 USD
A
Retailer 2
-
$796 USD
View
A
Retailer 3
-
$807 USD
View
A
Retailer 4
-
$897 USD
View
A
Retailer 5
-
$939 USD
View
B+
Retailer 6
-
$1,092 USD
View
B
Retailer 7
-
$1,375 USD
View
B
Retailer 8
-
$1,423 USD
View
Most Expensive
C
NZ Jewellers
f82cbf11-ef89-490c-9c8e-28af64f274c3 · Nov 5
$2,439 USD
View
8 more retailers have this diamond
Prices start from $778 USDSave up to $1,661 USD

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
$778 USD