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Heart|Natural|GIA

0.81ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 1

Certificate GIA 1

Diamond specifications and retailer prices

From HK$17,905 HKD
$2,282 USD
As of November 2, 2026
Save HK$4,417 HKD (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$22,322 HKD at Blue Nile · As of October 31, 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 31, 2026, with prices from HK$17,905 to HK$22,322, a HK$4,417 spread on the same certified stone. Blue Nile lists it at HK$22,322. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.81
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1
Dimensions6.56 × 6.80 × 3.31 mm
L/W Ratio1.04
Top View
6.56 mm6.80 mm0.81 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 48.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
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$22,322 HKD|Low: HK$17,905 HKD|High: HK$22,322 HKD|Avg: HK$19,389 HKD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2HK$17,905 HKD
Retailer 3HK$19,407 HKD
Blue NileHK$22,322 HKD

2 data points across 3 retailers

3 retailersHK$17,905 HKD to HK$22,322 HKD

B
Cheapest Retailer
-
HK$17,905 HKD
$2,282 USD
B
Retailer 2
-
HK$19,407 HKD
$2,474 USD
View
Most Expensive
C
Blue Nile
6009132 · Oct 31
HK$22,322 HKD
$2,845 USD
View
2 more retailers have this diamond
Prices start from HK$17,905 HKDSave up to HK$4,417 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.

B
0.81ct Heart
HK$17,905 HKD