Heart|Natural|GIA

0.81ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 2408533563

Certificate GIA 2408533563

Diamond specifications and retailer prices

From $1,859 USD
As of November 1, 2026
Save $2,121 USD (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,980 USD at MOH London · As of November 1, 2026
View at MOH London

About this 0.81ct natural heart diamond

This 0.81ct natural heart sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2408533563. Listed at 18 retailers as of November 1, 2026, with prices from $1,859 to $3,980, a $2,121 spread on the same certified stone. MOH London lists it at $3,980. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2408533563
Dimensions5.22 × 5.17 × 3.52 mm
L/W Ratio1.01
Top View
5.22 mm5.17 mm0.81 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2408533563
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,980 USD|Low: $1,741 USD|High: $4,028 USD|Avg: $2,623 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 4$1,859 USD
Retailer 2$1,885 USD
Retailer 13$1,900 USD
Retailer 5$1,985 USD
Retailer 12$2,020 USD
Retailer 10$2,058 USD
Retailer 11$2,334 USD
Retailer 7$2,493 USD
Retailer 3$2,794 USD
Retailer 9$2,837 USD
Retailer 6$2,864 USD
Retailer 8$3,384 USD
MOH London$3,980 USD

39 data points across 13 retailers

18 retailers$1,859 USD to $3,980 USD

B+
Cheapest Retailer
-
$1,859 USD
B
Retailer 2
-
$1,885 USD
View
B
Retailer 3
-
$1,900 USD
View
Final sale: no returns
B
Retailer 4
-
$1,985 USD
View
B
Retailer 5
-
$2,020 USD
View
B
Retailer 6
-
$2,058 USD
View
B
Retailer 7
-
$2,090 USD
View
B
Retailer 8
-
$2,117 USD
View
B
Retailer 9
-
$2,300 USD
View
B
Retailer 10
-
$2,300 USD
View
B
Retailer 11
-
$2,334 USD
View
B
Retailer 12
-
$2,380 USD
View
B
Retailer 13
-
$2,493 USD
£1,963 GBP
View
Retailer 14
-
$2,794 USD
A$4,298 AUD
View
Price last confirmed 26 days ago
B
Retailer 15
-
$2,837 USD
€2,702 EUR
View
B
Retailer 16
-
$2,864 USD
£2,255 GBP
View
B
Retailer 17
-
$3,384 USD
ZAR 54,663 ZAR
View
Most Expensive
B
MOH London
42B5ADD21 · Nov 1
$3,980 USD
£3,134 GBP
View
17 more retailers have this diamond
Prices start from $1,859 USDSave up to $2,121 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.

B+
0.81ct Heart
$1,859 USD