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Heart|Natural|GIA

0.81ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 3565280189

Certificate GIA 3565280189

Diamond specifications and retailer prices

From $1,397 SGD
$1,090 USD
As of October 28, 2026
Save $244 SGD (15%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,641 SGD at Blue Nile · As of October 29, 2026
View at Blue Nile

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 3565280189. Listed at 4 retailers as of October 28, 2026, with prices from $1,397 to $1,641, a $244 spread on the same certified stone. Blue Nile lists it at $1,641. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3565280189
Dimensions6.08 × 6.37 × 3.64 mm
L/W Ratio1.05
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
6.08 mm6.37 mm0.81 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3565280189
Side View
Table 57.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 57.2%

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 28
Current: $1,641 SGD|Low: $1,397 SGD|High: $1,660 SGD|Avg: $1,505 SGD|-1.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 3$1,397 SGD
Retailer 2$1,490 SGD
Retailer 4$1,507 SGD
Blue Nile$1,641 SGD

39 data points across 4 retailers

4 retailers$1,397 SGD to $1,641 SGD

A
Cheapest Retailer
-
$1,397 SGD
$1,090 USD
A
Retailer 2
-
$1,490 SGD
£916 GBP
View
A
Retailer 3
-
$1,507 SGD
View
Most Expensive
B+
Blue Nile
30171686 · Oct 29
$1,641 SGD
$1,280 USD
View
3 more retailers have this diamond
Prices start from $1,397 SGDSave up to $244 SGD

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
$1,397 SGD