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Heart|Natural|GIA

1.64ct D SI2 Heart Natural Diamond

VG • D/SI2 • GIA 6515713856

Certificate GIA 6515713856

Diamond specifications and retailer prices

From HK$36,898 HKD
$4,703 USD
As of October 31, 2026
Save HK$35,122 HKD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$81,650 HKD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.64ct natural heart diamond

This 1.64ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6515713856. Listed at 14 retailers as of October 26, 2026, with a 95% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.64
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6515713856
Dimensions8.10 × 6.94 × 4.89 mm
L/W Ratio1.17
Top View
8.10 mm6.94 mm1.64 ctD / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515713856
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.4%

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: Oct 31
Current: HK$81,650 HKD|Low: HK$34,019 HKD|High: HK$81,650 HKD|Avg: HK$50,211 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 27, 2026
Retailer 15HK$36,898 HKD
Retailer 3HK$37,448 HKD
Retailer 4HK$38,507 HKD
Retailer 16HK$40,821 HKD
Retailer 5HK$44,226 HKD
Retailer 12HK$44,226 HKD
Retailer 13HK$44,226 HKD
Retailer 10HK$46,589 HKD
Retailer 17HK$46,682 HKD
Retailer 7HK$49,820 HKD
Retailer 8HK$49,820 HKD
Retailer 6HK$51,468 HKD
Retailer 2HK$51,523 HKD
Retailer 11HK$53,053 HKD
Retailer 9HK$61,309 HKD
Retailer 14HK$72,020 HKD
NZ JewellersHK$81,650 HKD

30 data points across 17 retailers

14 retailersHK$36,898 HKD to HK$72,020 HKD

A
Cheapest Retailer
-
HK$36,898 HKD
$4,703 USD
A
Retailer 2
-
HK$37,448 HKD
$4,773 USD
View
A
Retailer 3
-
HK$38,507 HKD
$4,908 USD
View
Retailer 4
-
HK$44,226 HKD
$5,637 USD
View
Price last confirmed 7 days ago
Retailer 5
-
HK$44,226 HKD
$5,637 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
HK$46,589 HKD
£4,676 GBP
View
B+
Retailer 7
-
HK$46,682 HKD
$5,950 USD
View
B+
Retailer 8
-
HK$49,820 HKD
$6,350 USD
View
B+
Retailer 9
-
HK$49,820 HKD
$6,350 USD
View
B+
Retailer 10
-
HK$51,468 HKD
$6,560 USD
View
B+
Retailer 11
-
HK$51,523 HKD
$6,567 USD
View
B+
Retailer 12
-
HK$53,053 HKD
€6,440 EUR
View
B+
Retailer 13
-
HK$72,020 HKD
£7,228 GBP
View
Most Expensive
NZ Jewellers
51753480-c4a3-4b05-8d7d-e40f78589f03 · Oct 24
HK$81,650 HKD
$10,407 USD
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from HK$36,898 HKDSave up to HK$35,122 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
1.64ct Heart
HK$36,898 HKD