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Heart|Natural|GIA

0.81ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6432541353

Certificate GIA 6432541353

Diamond specifications and retailer prices

From $1,880 SGD
$1,470 USD
As of October 31, 2026
Save $1,799 SGD (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,679 SGD 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 6432541353. Listed at 6 retailers as of October 31, 2026, with prices from $1,880 to $3,679, a $1,799 spread on the same certified stone. MOH London lists it at $3,679. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle46.18°
Pavilion angle34.32°
OriginNatural
Grading LabGIA
CertificateGIA 6432541353
Dimensions5.90 × 6.55 × 3.55 mm
L/W Ratio1.11
Top View
5.90 mm6.55 mm0.81 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6432541353
Side View
Table 60.0%Crown 46.18°Girdle: THN-THKPavilion 34.32°Culet: NoneDepth 54.3%

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: Oct 31
Current: $3,679 SGD|Low: $2,005 SGD|High: $3,723 SGD|Avg: $2,609 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$2,076 SGD
Retailer 5$2,086 SGD
Retailer 2$2,113 SGD
Retailer 4$2,806 SGD
Retailer 3$2,937 SGD
MOH London$3,679 SGD

40 data points across 6 retailers

6 retailers$1,880 SGD to $3,679 SGD

B+
Cheapest Retailer
-
$1,880 SGD
$1,470 USD
B+
Retailer 2
-
$2,086 SGD
$1,631 USD
View
B+
Retailer 3
-
$2,113 SGD
£1,301 GBP
View
Retailer 4
-
$2,806 SGD
A$3,376 AUD
View
Price last confirmed 27 days ago
B
Retailer 5
-
$2,937 SGD
€2,187 EUR
View
Most Expensive
B
MOH London
D1D69817E · Nov 1
$3,679 SGD
£2,265 GBP
View
5 more retailers have this diamond
Prices start from $1,880 SGDSave up to $1,799 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.

B+
0.81ct Heart
$1,880 SGD