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Heart|Natural|GIA

0.81ct K SI1 Heart Natural Diamond

VG • K/SI1 • GIA 7501396526

Certificate GIA 7501396526

Diamond specifications and retailer prices

From $740 USD
As of November 5, 2026
Save $590 USD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,330 USD at MOH London · As of November 4, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7501396526. Listed at 6 retailers as of November 4, 2026, with prices from $740 to $1,330, a $590 spread on the same certified stone. MOH London lists it at $1,330. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.81
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7501396526
Dimensions5.58 × 5.18 × 3.57 mm
L/W Ratio1.08
Key to symbols
Crystal, Cavity, Feather
Top View
5.58 mm5.18 mm0.81 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 7501396526
Side View
Table 65.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.0%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $1,330 USD|Low: $740 USD|High: $1,347 USD|Avg: $965 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$740 USD
Retailer 3$784 USD
Retailer 5$863 USD
Retailer 2$1,017 USD
Retailer 4$1,075 USD
MOH London$1,330 USD

45 data points across 6 retailers

6 retailers$740 USD to $1,330 USD

B+
Cheapest Retailer
-
$740 USD
B+
Retailer 2
-
$784 USD
View
B+
Retailer 3
-
$863 USD
View
B+
Retailer 4
-
$1,017 USD
View
B
Retailer 5
-
$1,075 USD
View
Most Expensive
B
MOH London
E635C73D1 · Nov 4
$1,330 USD
£1,047 GBP
View
5 more retailers have this diamond
Prices start from $740 USDSave up to $590 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
$740 USD