Heart|Natural|GIA

0.81ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 3555378724

Certificate GIA 3555378724

Diamond specifications and retailer prices

From $922 USD
HK$7,200 HKD
As of October 29, 2026
Save $864 USD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,985 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.81ct natural heart diamond

This 0.81ct natural heart sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555378724. Listed at 13 retailers as of October 23, 2026, with a 94% 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555378724
Dimensions5.65 × 6.60 × 3.86 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
5.65 mm6.60 mm0.81 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555378724
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.5%

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 29
Current: $1,191 USD|Low: $883 USD|High: $2,268 USD|Avg: $1,398 USD|-9.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 10$922 USD
Retailer 13$1,087 USD
Retailer 7$1,106 USD
Retailer 8$1,136 USD
Retailer 9$1,172 USD
Retailer 1$1,191 USD
Retailer 12$1,288 USD
Retailer 4$1,305 USD
Retailer 3$1,367 USD
Retailer 2$1,422 USD
Retailer 6$1,542 USD
Retailer 5$1,747 USD
Retailer 11$1,786 USD
Retailer 14$2,179 USD

32 data points across 14 retailers

13 retailers$922 USD to $1,786 USD

A
Cheapest Retailer
-
$922 USD
HK$7,200 HKD
A
Retailer 2
-
$1,087 USD
View
Final sale: no returns
A
Retailer 3
-
$1,106 USD
€1,053 EUR
View
A
Retailer 4
-
$1,136 USD
View
A
Retailer 5
-
$1,172 USD
View
A
Retailer 6
-
$1,191 USD
£938 GBP
View
A
Retailer 7
-
$1,288 USD
SGD 1,740 SGD
View
B+
Retailer 8
-
$1,422 USD
£1,119 GBP
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$1,542 USD
A$2,372 AUD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
$1,747 USD
ZAR 28,227 ZAR
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$1,786 USD
View
B+
Retailer 12
-
$2,179 USD
£1,716 GBP
View
Price last confirmed 21 days ago
Most Expensive
B
NZ Jewellers
49942fc4-5d3b-44b1-8267-ff74422abb4f · Sep 25
$2,985 USD
View
Price last confirmed 34 days ago
12 more retailers have this diamond
Prices start from $922 USDSave up to $864 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 Heart
$922 USD