Heart|Natural|GIA

0.81ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 6441896539

Certificate GIA 6441896539

Diamond specifications and retailer prices

From $1,070 USD
As of October 31, 2026
Save $1,066 USD (50%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,136 USD at MOH London · As of October 29, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6441896539. Listed at 8 retailers as of October 29, 2026, with prices from $1,070 to $2,136, a $1,066 spread on the same certified stone. MOH London lists it at $2,136. 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
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle43.48°
Pavilion angle38.2°
OriginNatural
Grading LabGIA
CertificateGIA 6441896539
Dimensions5.52 × 6.45 × 3.78 mm
L/W Ratio1.17
Top View
5.52 mm6.45 mm0.81 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6441896539
Side View
Table 61.0%Crown 43.48°Girdle: STK-VTKPavilion 38.2°Culet: NoneDepth 58.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,136 USD|Low: $1,070 USD|High: $2,136 USD|Avg: $1,535 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 7$1,070 USD
Retailer 6$1,160 USD
Retailer 3$1,312 USD
Retailer 2$1,339 USD
Retailer 5$1,355 USD
Retailer 9$1,482 USD
Retailer 4$1,544 USD
Retailer 8$1,587 USD
Retailer 10$1,966 USD
MOH London$2,136 USD

15 data points across 10 retailers

8 retailers$1,070 USD to $2,136 USD

A
Cheapest Retailer
-
$1,070 USD
Final sale: no returns
A
Retailer 2
-
$1,160 USD
View
B+
Retailer 3
-
$1,312 USD
£1,033 GBP
View
B+
Retailer 4
-
$1,339 USD
View
A
Retailer 5
-
$1,355 USD
£1,067 GBP
View
B+
Retailer 6
-
$1,544 USD
£1,216 GBP
View
B
Retailer 7
-
$1,966 USD
€1,872 EUR
View
Most Expensive
B
MOH London
5903F61C9 · Oct 29
$2,136 USD
£1,682 GBP
View
7 more retailers have this diamond
Prices start from $1,070 USDSave up to $1,066 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
$1,070 USD