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Heart|Natural|GIA

0.81ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6541804776

Certificate GIA 6541804776

Diamond specifications and retailer prices

From HK$8,764 HKD
$1,117 USD
As of November 2, 2026
Save HK$9,341 HKD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$21,875 HKD at NZ Jewellers · As of September 30, 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 D 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 6541804776. Listed at 18 retailers as of October 29, 2026, with a 107% 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.79°
Pavilion angle42.33°
OriginNatural
Grading LabGIA
CertificateGIA 6541804776
Dimensions5.76 × 6.31 × 3.87 mm
L/W Ratio1.10
Top View
5.76 mm6.31 mm0.81 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541804776
Side View
Table 57.0%Crown 36.79°Girdle: Slightly ThickPavilion 42.33°Culet: NoneDepth 61.3%

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: Nov 2
Current: HK$10,838 HKD|Low: HK$6,371 HKD|High: HK$18,106 HKD|Avg: HK$11,146 HKD|+10.5%
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
November 2, 2026
Retailer 12HK$8,764 HKD
Retailer 3HK$8,897 HKD
Retailer 5HK$8,968 HKD
Retailer 9HK$9,101 HKD
Retailer 8HK$10,098 HKD
Retailer 7HK$10,475 HKD
Retailer 6HK$10,554 HKD
Retailer 1HK$10,838 HKD
Retailer 2HK$11,487 HKD
Retailer 4HK$11,727 HKD
Retailer 10HK$13,272 HKD
Retailer 11HK$14,049 HKD
Retailer 13HK$18,106 HKD

41 data points across 13 retailers

18 retailersHK$8,764 HKD to HK$18,106 HKD

A
Cheapest Retailer
-
HK$8,764 HKD
$1,117 USD
Final sale: no returns
A
Retailer 2
-
HK$8,897 HKD
$1,134 USD
View
Retailer 3
-
HK$8,968 HKD
$1,143 USD
View
Price last confirmed 32 days ago
Retailer 4
-
HK$8,968 HKD
$1,143 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
HK$9,101 HKD
$1,160 USD
View
Retailer 6
-
HK$9,313 HKD
$1,187 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
HK$10,098 HKD
$1,287 USD
View
Retailer 8
-
HK$10,349 HKD
$1,319 USD
View
Price last confirmed 56 days ago
Retailer 9
-
HK$10,349 HKD
$1,319 USD
View
Price last confirmed 34 days ago
B+
Retailer 10
-
HK$10,475 HKD
$1,335 USD
View
A
Retailer 11
-
HK$10,554 HKD
$1,345 USD
View
B+
Retailer 12
-
HK$10,838 HKD
£1,088 GBP
View
B+
Retailer 13
-
HK$11,487 HKD
£1,153 GBP
View
Retailer 14
-
HK$11,727 HKD
A$2,300 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
HK$13,272 HKD
€1,611 EUR
View
B+
Retailer 16
-
HK$14,049 HKD
ZAR 28,926 ZAR
View
B
Retailer 17
-
HK$18,106 HKD
£1,817 GBP
View
Most Expensive
NZ Jewellers
04f28387-8860-40de-bca6-dbb8f13d8be6 · Sep 30
HK$21,875 HKD
$2,788 USD
View
Price last confirmed 33 days ago
17 more retailers have this diamond
Prices start from HK$8,764 HKDSave up to HK$9,341 HKD

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
HK$8,764 HKD