Round|Natural|GIA

0.81ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6247021860

Certificate GIA 6247021860

Diamond specifications and retailer prices

From $937 USD
Save $581 USD (38%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,543 USD at Cape Diamonds
View at Cape Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6247021860. Listed at 14 retailers, with a 62% 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6247021860
Dimensions5.94 × 3.72 × 3.72 mm
L/W Ratio1.60
Culet sizeNone
Top View
5.94 mm3.72 mm0.81 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6247021860
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $1,176 USD|Low: $937 USD|High: $1,518 USD|Avg: $1,166 USD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 1, 2026
Retailer 11$937 USD
Retailer 3$955 USD
Retailer 4$1,014 USD
Retailer 12$1,020 USD
Retailer 10$1,030 USD
Retailer 6$1,052 USD
Retailer 1$1,176 USD
Retailer 8$1,308 USD
Retailer 5$1,336 USD
Retailer 9$1,399 USD
Retailer 7$1,427 USD
Retailer 2$1,518 USD

42 data points across 12 retailers

14 retailers$937 USD to $1,518 USD

A
Cheapest Retailer
-
$937 USD
A
Retailer 2
-
$955 USD
SGD 1,290 SGD
View
A
Retailer 3
-
$1,014 USD
View
A
Retailer 4
-
$1,020 USD
SGD 1,379 SGD
View
A
Retailer 5
-
$1,030 USD
View
A
Retailer 6
-
$1,049 USD
£826 GBP
View
B+
Retailer 7
-
$1,176 USD
View
B+
Retailer 8
-
$1,191 USD
View
B+
Retailer 9
-
$1,308 USD
£1,030 GBP
View
B+
Retailer 10
-
$1,336 USD
€1,272 EUR
View
B
Retailer 11
-
$1,427 USD
View
B
Retailer 12
-
$1,428 USD
View
B
Retailer 13
-
$1,518 USD
View
Most Expensive
B
Cape Diamonds
cert_6247021860 · Aug 7
$1,543 USD
ZAR 24,924 ZAR
View
Price last confirmed 55 days ago
13 more retailers have this diamond
Prices start from $937 USDSave up to $581 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.

A
0.81ct Round
$937 USD