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Heart|Natural|GIA

0.91ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 3525247509

Certificate GIA 3525247509

Diamond specifications and retailer prices

From HK$7,744 HKD
$987 USD
As of November 1, 2026
Save HK$8,954 HKD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$21,169 HKD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.91ct natural heart diamond

This 0.91ct 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 3525247509. Listed at 15 retailers as of November 1, 2026, with a 116% 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

0.91
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.85°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 3525247509
Dimensions5.86 × 6.62 × 3.94 mm
L/W Ratio1.13
Top View
5.86 mm6.62 mm0.91 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3525247509
Side View
Table 59.0%Crown 38.85°Girdle: THK-VTKPavilion 40.2°Culet: NoneDepth 59.5%

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$16,698 HKD|Low: HK$7,336 HKD|High: HK$16,928 HKD|Avg: HK$11,133 HKD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9HK$7,744 HKD
Retailer 7HK$8,003 HKD
Retailer 2HK$8,309 HKD
Retailer 10HK$9,729 HKD
Retailer 3HK$9,890 HKD
Retailer 5HK$10,137 HKD
Retailer 8HK$11,347 HKD
Retailer 4HK$12,710 HKD
Retailer 6HK$15,913 HKD
Retailer 1HK$16,698 HKD

41 data points across 10 retailers

15 retailersHK$7,744 HKD to HK$16,698 HKD

A
Cheapest Retailer
-
HK$7,744 HKD
$987 USD
A
Retailer 2
-
HK$8,003 HKD
$1,020 USD
View
Final sale: no returns
A
Retailer 3
-
HK$8,309 HKD
$1,059 USD
View
Retailer 4
-
HK$8,678 HKD
$1,106 USD
View
Price last confirmed 25 days ago
Retailer 5
-
HK$8,678 HKD
$1,106 USD
View
Price last confirmed 25 days ago
Retailer 6
-
HK$9,007 HKD
$1,148 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
HK$9,729 HKD
$1,240 USD
View
B+
Retailer 8
-
HK$9,890 HKD
£993 GBP
View
Retailer 9
-
HK$10,012 HKD
$1,276 USD
View
Price last confirmed 24 days ago
A
Retailer 10
-
HK$10,137 HKD
£1,017 GBP
View
Retailer 11
-
HK$11,347 HKD
A$2,225 AUD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
HK$12,710 HKD
ZAR 26,170 ZAR
View
Retailer 13
-
HK$15,913 HKD
£1,597 GBP
View
Price last confirmed 8 days ago
B
Retailer 14
-
HK$16,698 HKD
£1,676 GBP
View
Most Expensive
NZ Jewellers
fa4126a9-76d9-432e-a56c-fa71ffe002c4 · Sep 30
HK$21,169 HKD
$2,698 USD
View
Price last confirmed 33 days ago
14 more retailers have this diamond
Prices start from HK$7,744 HKDSave up to HK$8,954 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
0.91ct Heart
HK$7,744 HKD