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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 €1,311 EUR
$1,470 USD
As of November 2, 2026
Save €1,254 EUR (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €2,565 EUR at MOH London · As of November 2, 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 November 2, 2026, with prices from €1,311 to €2,565, a €1,254 spread on the same certified stone. MOH London lists it at €2,565. 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
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: Nov 2
Current: €2,565 EUR|Low: €1,398 EUR|High: €2,595 EUR|Avg: €1,822 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6€1,447 EUR
Retailer 5€1,454 EUR
Retailer 2€1,473 EUR
Retailer 4€1,956 EUR
Retailer 3€2,047 EUR
MOH London€2,565 EUR

39 data points across 6 retailers

6 retailers€1,311 EUR to €2,565 EUR

B+
Cheapest Retailer
-
€1,311 EUR
$1,470 USD
B+
Retailer 2
-
€1,454 EUR
$1,631 USD
View
B+
Retailer 3
-
€1,473 EUR
£1,301 GBP
View
Retailer 4
-
€1,956 EUR
A$3,376 AUD
View
Price last confirmed 28 days ago
B
Retailer 5
-
€2,047 EUR
View
Most Expensive
B
MOH London
D1D69817E · Nov 2
€2,565 EUR
£2,265 GBP
View
5 more retailers have this diamond
Prices start from €1,311 EURSave up to €1,254 EUR

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
€1,311 EUR