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0.81ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 651459938

Shape and cutting style on the report: Round brilliant

Certificate IGI 651459938

Diamond specifications and retailer prices

From $683 USD
As of November 6, 2026
Save $1,047 USD (61%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,730 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 IGI 651459938. Listed at 5 retailers as of November 5, 2026, with prices from $683 to $1,730, a $1,047 spread on the same certified stone. NZ Jewellers lists it at $1,730. 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
FluorescenceNone
Crown angle36.1°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 651459938
Dimensions5.94 × 5.95 × 3.71 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.94 mm5.95 mm0.81 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 651459938
Side View
Table 57.0%Crown 36.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.3%

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: $1,730 USD|Low: $666 USD|High: $1,746 USD|Avg: $947 USD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 5$683 USD
Retailer 2$685 USD
Retailer 3$817 USD
Retailer 6$872 USD
Retailer 4$1,281 USD
NZ Jewellers$1,730 USD

24 data points across 6 retailers

5 retailers$683 USD to $1,730 USD

A
Cheapest Retailer
-
$683 USD
A
Retailer 2
-
$685 USD
View
A
Retailer 3
-
$817 USD
View
Retailer 4
-
$1,281 USD
View
Price last confirmed 8 days ago
Most Expensive
B
NZ Jewellers
b2cb64f7-1b48-472c-979f-e062d6fb1685 · Nov 5
$1,730 USD
View
4 more retailers have this diamond
Prices start from $683 USDSave up to $1,047 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
$683 USD