CaratHunter
Plans
Heart|Natural|GIA

0.90ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1543173708

Certificate GIA 1543173708

Diamond specifications and retailer prices

From HK$5,222 HKD
As of November 1, 2026
Save HK$7,681 HKD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$24,141 HKD at NZ Jewellers · As of September 25, 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 1543173708. Listed at 14 retailers as of November 1, 2026, with a 147% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 1543173708
Dimensions5.59 × 6.58 × 4.15 mm
L/W Ratio1.18
Girdle conditionFaceted
Top View
5.59 mm6.58 mm0.90 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543173708
Side View
Table 55.0%CrownGirdle: STK-VTKPavilion 40.2°Culet: NoneDepth 63.0%

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$7,260 HKD|Low: HK$5,222 HKD|High: HK$14,139 HKD|Avg: HK$8,915 HKD|-14.6%
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 7HK$5,222 HKD
Retailer 10HK$6,496 HKD
Retailer 6HK$7,249 HKD
Retailer 1HK$7,260 HKD
Retailer 9HK$7,297 HKD
Retailer 12HK$7,375 HKD
Retailer 3HK$7,426 HKD
Retailer 4HK$8,813 HKD
Retailer 2HK$8,858 HKD
Retailer 11HK$10,582 HKD
Retailer 5HK$10,596 HKD
Retailer 13HK$11,107 HKD
Retailer 8HK$12,903 HKD

34 data points across 13 retailers

14 retailersHK$5,222 HKD to HK$12,903 HKD

A
Cheapest Retailer
-
HK$5,222 HKD
B+
Retailer 2
-
HK$6,496 HKD
$828 USD
View
Final sale: no returns
A
Retailer 3
-
HK$7,249 HKD
$924 USD
View
A
Retailer 4
-
HK$7,260 HKD
£729 GBP
View
A
Retailer 5
-
HK$7,297 HKD
$930 USD
View
A
Retailer 6
-
HK$7,375 HKD
$940 USD
View
Retailer 7
-
HK$7,426 HKD
SGD 1,279 SGD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
HK$8,813 HKD
SGD 1,518 SGD
View
B+
Retailer 9
-
HK$8,858 HKD
$1,129 USD
View
B+
Retailer 10
-
HK$10,582 HKD
ZAR 21,789 ZAR
View
Retailer 11
-
HK$10,596 HKD
A$2,078 AUD
View
Price last confirmed 28 days ago
Retailer 12
-
HK$11,107 HKD
$1,416 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
HK$12,903 HKD
£1,295 GBP
View
Most Expensive
NZ Jewellers
49809009-c699-407d-b902-f73808d4e2c6 · Sep 25
HK$24,141 HKD
$3,077 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from HK$5,222 HKDSave up to HK$7,681 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$5,222 HKD