Round|Natural|GIA

0.81ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6521265345

Certificate GIA 6521265345

Diamond specifications and retailer prices

From $1,034 USD
As of October 30, 2026
Save $1,244 USD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,170 USD at NZ Jewellers · As of September 26, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521265345. Listed at 18 retailers as of October 29, 2026, with a 120% 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
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6521265345
Dimensions5.99 × 5.94 × 3.70 mm
L/W Ratio1.01
Star length50%
Top View
5.99 mm5.94 mm0.81 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521265345
Side View
Table 57.0%Crown 35.5°GirdlePavilion 40.8°Culet: NoneDepth 62.0%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $1,729 USD|Low: $996 USD|High: $2,409 USD|Avg: $1,546 USD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8$1,034 USD
Retailer 2$1,074 USD
Retailer 9$1,100 USD
Retailer 3$1,214 USD
Retailer 7$1,224 USD
Retailer 5$1,405 USD
Retailer 10$1,524 USD
Retailer 4$1,647 USD
Retailer 1$1,729 USD
Retailer 6$2,278 USD

39 data points across 10 retailers

18 retailers$1,034 USD to $2,278 USD

A
Cheapest Retailer
-
$1,034 USD
Final sale: no returns
A
Retailer 2
-
$1,074 USD
View
A
Retailer 3
-
$1,100 USD
View
Retailer 4
-
$1,178 USD
View
Price last confirmed 43 days ago
Retailer 5
-
$1,178 USD
View
Price last confirmed 22 days ago
Retailer 6
-
$1,178 USD
View
Price last confirmed 23 days ago
A
Retailer 7
-
$1,214 USD
View
Retailer 8
-
$1,223 USD
View
Price last confirmed 31 days ago
A
Retailer 9
-
$1,224 USD
View
Retailer 10
-
$1,359 USD
View
Price last confirmed 21 days ago
Retailer 11
-
$1,359 USD
View
Price last confirmed 39 days ago
B+
Retailer 12
-
$1,405 USD
£1,106 GBP
View
B+
Retailer 13
-
$1,524 USD
£1,200 GBP
View
B+
Retailer 14
-
$1,647 USD
£1,297 GBP
View
B+
Retailer 15
-
$1,729 USD
€1,647 EUR
View
B
Retailer 16
-
$2,278 USD
£1,794 GBP
View
Retailer 17
-
$3,170 USD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
0267b566-3f76-496c-9319-e5606abfe050 · Sep 26
$3,170 USD
View
Price last confirmed 34 days ago
17 more retailers have this diamond
Prices start from $1,034 USDSave up to $1,244 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
$1,034 USD