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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6542397714

Certificate GIA 6542397714

Diamond specifications and retailer prices

From HK$4,710 HKD
As of November 6, 2026
Save HK$7,038 HKD (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$22,689 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542397714. Listed at 13 retailers as of November 2, 2026, with a 149% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle38.9°
OriginNatural
Grading LabGIA
CertificateGIA 6542397714
Dimensions5.71 × 6.75 × 4.03 mm
L/W Ratio1.18
Top View
5.71 mm6.75 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542397714
Side View
Table 58.0%CrownGirdle: MED-VTKPavilion 38.9°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$6,599 HKD|Low: HK$4,710 HKD|High: HK$13,253 HKD|Avg: HK$8,036 HKD|-13.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11HK$4,710 HKD
Retailer 9HK$5,925 HKD
Retailer 2HK$6,348 HKD
Retailer 1HK$6,599 HKD
Retailer 10HK$6,623 HKD
Retailer 3HK$6,779 HKD
Retailer 5HK$6,779 HKD
Retailer 4HK$8,229 HKD
Retailer 6HK$8,370 HKD
Retailer 7HK$9,397 HKD
Retailer 8HK$9,797 HKD
Retailer 12HK$11,748 HKD

37 data points across 12 retailers

13 retailersHK$4,710 HKD to HK$11,748 HKD

A
Cheapest Retailer
-
HK$4,710 HKD
A
Retailer 2
-
HK$5,925 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$6,348 HKD
View
A
Retailer 4
-
HK$6,599 HKD
View
A
Retailer 5
-
HK$6,623 HKD
View
A
Retailer 6
-
HK$6,779 HKD
View
A
Retailer 7
-
HK$6,779 HKD
View
B+
Retailer 8
-
HK$8,229 HKD
View
B+
Retailer 9
-
HK$8,370 HKD
View
B+
Retailer 10
-
HK$9,397 HKD
View
B+
Retailer 11
-
HK$9,797 HKD
View
B+
Retailer 12
-
HK$11,748 HKD
View
Most Expensive
NZ Jewellers
96717b14-6037-4173-b8d9-9846d49afc09 · Sep 25
HK$22,689 HKD
$2,895 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from HK$4,710 HKDSave up to HK$7,038 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$4,710 HKD