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0.81ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6561251999

Certificate GIA 6561251999

Diamond specifications and retailer prices

From €646 EUR
As of November 4, 2026
Save €386 EUR (37%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,032 EUR at Frank Darling · As of November 6, 2026
View at Frank Darling

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 6561251999. Listed at 11 retailers as of November 4, 2026, with prices from €646 to €1,032, a €386 spread on the same certified stone. Frank Darling lists it at €1,032. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6561251999
Dimensions5.93 × 5.95 × 3.72 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.93 mm5.95 mm0.81 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561251999
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 4
Current: €1,032 EUR|Low: €640 EUR|High: €1,112 EUR|Avg: €841 EUR|-7.2%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7€646 EUR
Retailer 5€647 EUR
Retailer 11€659 EUR
Retailer 9€674 EUR
Retailer 2€726 EUR
Retailer 10€779 EUR
Retailer 8€856 EUR
Retailer 6€877 EUR
Retailer 4€879 EUR
Retailer 3€989 EUR
Frank Darling€1,032 EUR

43 data points across 11 retailers

11 retailers€646 EUR to €1,032 EUR

A
Cheapest Retailer
-
€646 EUR
A
Retailer 2
-
€647 EUR
View
A
Retailer 3
-
€659 EUR
View
A
Retailer 4
-
€674 EUR
View
A
Retailer 5
-
€726 EUR
View
A
Retailer 6
-
€779 EUR
View
B+
Retailer 7
-
€856 EUR
View
A
Retailer 8
-
€877 EUR
View
A
Retailer 9
-
€879 EUR
View
B+
Retailer 10
-
€989 EUR
View
Most Expensive
B+
Frank Darling
2688565HK · Nov 6
€1,032 EUR
$1,158 USD
View
10 more retailers have this diamond
Prices start from €646 EURSave up to €386 EUR

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
€646 EUR