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Heart|Natural|GIA

0.90ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 1553181188

Certificate GIA 1553181188

Diamond specifications and retailer prices

From HK$7,626 HKD
$972 USD
As of November 1, 2026
Save HK$11,997 HKD (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$24,637 HKD at NZ Jewellers · As of October 21, 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 H 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 1553181188. Listed at 15 retailers as of November 1, 2026, with a 157% 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553181188
Dimensions6.66 × 5.72 × 4.01 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
6.66 mm5.72 mm0.90 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553181188
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.3%

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$24,637 HKD|Low: HK$8,356 HKD|High: HK$24,637 HKD|Avg: HK$13,392 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
November 2, 2026
Retailer 3HK$8,356 HKD
Retailer 8HK$9,149 HKD
Retailer 12HK$9,149 HKD
Retailer 10HK$9,502 HKD
Retailer 9HK$10,561 HKD
Retailer 4HK$11,063 HKD
Retailer 11HK$12,180 HKD
Retailer 6HK$14,236 HKD
Retailer 7HK$14,937 HKD
Retailer 2HK$18,684 HKD
Retailer 5HK$19,624 HKD
NZ JewellersHK$24,637 HKD

39 data points across 12 retailers

15 retailersHK$7,626 HKD to HK$19,624 HKD

A
Cheapest Retailer
-
HK$7,626 HKD
$972 USD
A
Retailer 2
-
HK$8,356 HKD
$1,065 USD
View
A
Retailer 3
-
HK$8,552 HKD
$1,090 USD
View
Retailer 4
-
HK$9,149 HKD
$1,166 USD
View
Price last confirmed 11 days ago
Retailer 5
-
HK$9,502 HKD
$1,211 USD
View
Price last confirmed 10 days ago
Retailer 6
-
HK$10,561 HKD
$1,346 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
HK$11,063 HKD
$1,410 USD
View
B+
Retailer 8
-
HK$11,063 HKD
$1,410 USD
View
B+
Retailer 9
-
HK$11,455 HKD
$1,460 USD
View
Retailer 10
-
HK$12,180 HKD
£1,222 GBP
View
Price last confirmed 36 days ago
B+
Retailer 11
-
HK$14,236 HKD
€1,728 EUR
View
B+
Retailer 12
-
HK$14,937 HKD
ZAR 30,756 ZAR
View
B
Retailer 13
-
HK$18,684 HKD
£1,875 GBP
View
B
Retailer 14
-
HK$19,624 HKD
£1,969 GBP
View
Most Expensive
NZ Jewellers
f573e1a2-dde6-4659-83aa-2f1f2cf0e659 · Oct 21
HK$24,637 HKD
$3,140 USD
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from HK$7,626 HKDSave up to HK$11,997 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$7,626 HKD