Heart|Natural|GIA

1.80ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6442187096

Certificate GIA 6442187096

Diamond specifications and retailer prices

From HK$54,932 HKD
As of November 1, 2026
Save HK$63,616 HKD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$118,549 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.8ct natural heart diamond

This 1.8ct natural heart sits in the one-and-a-half to two 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 6442187096. Listed at 22 retailers as of October 30, 2026, with prices from HK$54,932 to HK$118,549, a HK$63,616 spread on the same certified stone. NZ Jewellers lists it at HK$118,549. 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

1.80
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle38.58°
OriginNatural
Grading LabGIA
CertificateGIA 6442187096
Dimensions8.19 × 6.84 × 5.13 mm
L/W Ratio1.20
Top View
8.19 mm6.84 mm1.80 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6442187096
Side View
Table 60.0%Crown 38.58°Girdle: STK-VTKPavilionCulet: NoneDepth 62.6%

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 1
Current: HK$66,102 HKD|Low: HK$56,061 HKD|High: HK$99,969 HKD|Avg: HK$70,946 HKD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2HK$56,192 HKD
Retailer 7HK$63,580 HKD
Retailer 8HK$65,425 HKD
Retailer 1HK$66,102 HKD
Retailer 4HK$66,320 HKD
Retailer 6HK$66,766 HKD
Retailer 5HK$87,078 HKD
Retailer 3HK$98,783 HKD

30 data points across 8 retailers

22 retailersHK$54,932 HKD to HK$118,549 HKD

A
Cheapest Retailer
-
HK$54,932 HKD
A
Retailer 2
-
HK$56,192 HKD
₹682,107 INR
View
B+
Retailer 3
-
HK$59,973 HKD
$7,644 USD
View
Retailer 4
-
HK$60,787 HKD
SGD 10,470 SGD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
HK$61,259 HKD
$7,808 USD
View
B+
Retailer 6
-
HK$63,580 HKD
SGD 10,951 SGD
View
B+
Retailer 7
-
HK$63,629 HKD
$8,110 USD
View
B+
Retailer 8
-
HK$63,864 HKD
$8,140 USD
View
B+
Retailer 9
-
HK$65,041 HKD
$8,290 USD
View
B+
Retailer 10
-
HK$65,425 HKD
$8,339 USD
View
B+
Retailer 11
-
HK$65,425 HKD
$8,339 USD
View
Final sale: no returns
B+
Retailer 12
-
HK$66,102 HKD
£6,634 GBP
View
B+
Retailer 13
-
HK$66,320 HKD
£6,656 GBP
View
Retailer 14
-
HK$66,766 HKD
A$13,092 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
HK$70,878 HKD
$9,034 USD
View
B+
Retailer 16
-
HK$71,969 HKD
$9,173 USD
View
B+
Retailer 17
-
HK$74,201 HKD
$9,458 USD
View
B
Retailer 18
-
HK$75,208 HKD
$9,586 USD
View
B+
Retailer 19
-
HK$81,784 HKD
$10,424 USD
View
B+
Retailer 20
-
HK$87,078 HKD
ZAR 179,303 ZAR
View
B
Retailer 21
-
HK$98,783 HKD
£9,914 GBP
View
Most Expensive
B
NZ Jewellers
a618d29c-7b39-4c36-8162-91f4522f4d77 · Oct 30
HK$118,549 HKD
$15,110 USD
View
21 more retailers have this diamond
Prices start from HK$54,932 HKDSave up to HK$63,616 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
1.80ct Heart
HK$54,932 HKD