Round|Natural|GIA

0.82ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6451590559

Certificate GIA 6451590559

Diamond specifications and retailer prices

From $1,345 USD
As of October 25, 2026
Save $1,843 USD (58%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,188 USD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 0.82ct natural round diamond

This 0.82ct natural round sits in the just-under-one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6451590559. Listed at 5 retailers as of October 25, 2026, with prices from $1,345 to $3,188, a $1,843 spread on the same certified stone. Diamond Quarter lists it at $3,188. 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

0.82
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6451590559
Dimensions5.96 × 5.95 × 3.76 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
5.96 mm5.95 mm0.82 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451590559
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.1%

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 25
Current: $1,777 USD|Low: $1,345 USD|High: $2,830 USD|Avg: $1,890 USD|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 4$1,345 USD
Retailer 5$1,473 USD
Retailer 1$1,777 USD
Retailer 2$2,185 USD
Retailer 3$2,811 USD

37 data points across 5 retailers

5 retailers$1,345 USD to $3,188 USD

A
Cheapest Retailer
-
$1,345 USD
B+
Retailer 2
-
$1,777 USD
£1,399 GBP
View
B
Retailer 3
-
$2,185 USD
€2,081 EUR
View
B
Retailer 4
-
$2,811 USD
£2,213 GBP
View
Most Expensive
B
Diamond Quarter
0.82SI2H6459526CN · Oct 29
$3,188 USD
£2,510 GBP
View
4 more retailers have this diamond
Prices start from $1,345 USDSave up to $1,843 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
0.82ct Round
$1,345 USD