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Heart|Natural|GIA

0.90ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1559708732

Certificate GIA 1559708732

Diamond specifications and retailer prices

From HK$5,122 HKD
As of November 1, 2026
Save HK$17,395 HKD (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$22,517 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559708732. Listed at 9 retailers as of October 30, 2026, with prices from HK$5,122 to HK$22,517, a HK$17,395 spread on the same certified stone. NZ Jewellers lists it at HK$22,517. 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

0.90
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.46°
OriginNatural
Grading LabGIA
CertificateGIA 1559708732
Dimensions5.71 × 6.68 × 3.98 mm
L/W Ratio1.17
Key to symbols
Crystal, Needle, Feather
Top View
5.71 mm6.68 mm0.90 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559708732
Side View
Table 61.0%CrownGirdle: STK-THKPavilion 39.46°Culet: NoneDepth 59.6%

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$22,517 HKD|Low: HK$5,122 HKD|High: HK$24,596 HKD|Avg: HK$11,026 HKD|-8.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2HK$5,122 HKD
Retailer 3HK$7,014 HKD
Retailer 7HK$7,362 HKD
Retailer 4HK$7,383 HKD
Retailer 8HK$7,453 HKD
Retailer 9HK$10,342 HKD
Retailer 5HK$13,172 HKD
Retailer 6HK$13,181 HKD
NZ JewellersHK$22,517 HKD

29 data points across 9 retailers

9 retailersHK$5,122 HKD to HK$22,517 HKD

A
Cheapest Retailer
-
HK$5,122 HKD
A
Retailer 2
-
HK$7,014 HKD
$894 USD
View
A
Retailer 3
-
HK$7,362 HKD
SGD 1,268 SGD
View
A
Retailer 4
-
HK$7,383 HKD
$941 USD
View
A
Retailer 5
-
HK$7,453 HKD
$950 USD
View
B+
Retailer 6
-
HK$10,342 HKD
A$2,028 AUD
View
B
Retailer 7
-
HK$13,172 HKD
£1,322 GBP
View
B
Retailer 8
-
HK$13,181 HKD
€1,600 EUR
View
Most Expensive
B
NZ Jewellers
491ff9fc-189c-4d00-b3e5-883fe4b3dbb6 · Oct 30
HK$22,517 HKD
$2,870 USD
View
8 more retailers have this diamond
Prices start from HK$5,122 HKDSave up to HK$17,395 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
0.90ct Heart
HK$5,122 HKD