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Heart|Natural|GIA

0.91ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6542515348

Certificate GIA 6542515348

Diamond specifications and retailer prices

From HK$5,825 HKD
As of November 1, 2026
Save HK$8,604 HKD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$22,989 HKD at NZ Jewellers · As of September 25, 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 6542515348. Listed at 14 retailers as of November 1, 2026, with a 148% 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
SymmetryVery Good
FluorescenceFaint
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542515348
Dimensions5.75 × 6.76 × 4.02 mm
L/W Ratio1.18
Top View
5.75 mm6.76 mm0.91 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542515348
Side View
Table 56.0%CrownGirdle: MED-THKPavilion 41.6°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$8,140 HKD|Low: HK$5,825 HKD|High: HK$16,342 HKD|Avg: HK$9,819 HKD|-21.7%
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 6HK$5,825 HKD
Retailer 10HK$7,265 HKD
Retailer 8HK$7,687 HKD
Retailer 9HK$8,003 HKD
Retailer 13HK$8,113 HKD
Retailer 1HK$8,140 HKD
Retailer 3HK$8,396 HKD
Retailer 12HK$9,298 HKD
Retailer 4HK$10,526 HKD
Retailer 5HK$11,362 HKD
Retailer 11HK$11,971 HKD
Retailer 2HK$12,723 HKD
Retailer 7HK$14,429 HKD

29 data points across 13 retailers

14 retailersHK$5,825 HKD to HK$14,429 HKD

A
Cheapest Retailer
-
HK$5,825 HKD
A
Retailer 2
-
HK$7,265 HKD
$926 USD
View
Final sale: no returns
A
Retailer 3
-
HK$7,687 HKD
€933 EUR
View
A
Retailer 4
-
HK$8,003 HKD
$1,020 USD
View
A
Retailer 5
-
HK$8,113 HKD
$1,034 USD
View
A
Retailer 6
-
HK$8,140 HKD
£817 GBP
View
Retailer 7
-
HK$8,396 HKD
SGD 1,446 SGD
View
Price last confirmed 10 days ago
A
Retailer 8
-
HK$9,298 HKD
$1,185 USD
View
B+
Retailer 9
-
HK$10,526 HKD
SGD 1,813 SGD
View
Retailer 10
-
HK$11,362 HKD
A$2,228 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
HK$11,971 HKD
ZAR 24,649 ZAR
View
Retailer 12
-
HK$12,723 HKD
$1,622 USD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
HK$14,429 HKD
£1,448 GBP
View
Most Expensive
NZ Jewellers
ec790a67-022d-42e3-b421-5e889851c541 · Sep 25
HK$22,989 HKD
$2,930 USD
View
Price last confirmed 38 days ago
13 more retailers have this diamond
Prices start from HK$5,825 HKDSave up to HK$8,604 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$5,825 HKD