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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 1549115288

Certificate GIA 1549115288

Diamond specifications and retailer prices

From HK$5,815 HKD
As of November 4, 2026
Save HK$1,364 HKD (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$7,179 HKD at Blue Nile · As of November 5, 2026
View at Blue Nile

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 1549115288. Listed at 6 retailers as of November 4, 2026, with prices from HK$5,815 to HK$7,179, a HK$1,364 spread on the same certified stone. Blue Nile lists it at HK$7,179. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549115288
Dimensions5.55 × 6.71 × 4.10 mm
L/W Ratio1.21
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
5.55 mm6.71 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549115288
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.1%

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 4
Current: HK$7,179 HKD|Low: HK$5,102 HKD|High: HK$8,065 HKD|Avg: HK$6,522 HKD|-11.0%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4HK$5,815 HKD
Retailer 6HK$5,823 HKD
Retailer 3HK$6,340 HKD
Retailer 5HK$6,489 HKD
Retailer 2HK$6,748 HKD
Blue NileHK$7,179 HKD

42 data points across 6 retailers

6 retailersHK$5,815 HKD to HK$7,179 HKD

A
Cheapest Retailer
-
HK$5,815 HKD
Final sale: no returns
A
Retailer 2
-
HK$5,823 HKD
View
A
Retailer 3
-
HK$6,340 HKD
View
A
Retailer 4
-
HK$6,489 HKD
View
A
Retailer 5
-
HK$6,748 HKD
View
Most Expensive
A
Blue Nile
27439294 · Nov 5
HK$7,179 HKD
$916 USD
View
5 more retailers have this diamond
Prices start from HK$5,815 HKDSave up to HK$1,364 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$5,815 HKD