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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 €665 EUR
HK$5,800 HKD
As of November 1, 2026
Save €982 EUR (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,623 EUR 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
Color
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

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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 1
Current: €929 EUR|Low: €665 EUR|High: €1,864 EUR|Avg: €1,120 EUR|-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 6€665 EUR
Retailer 10€829 EUR
Retailer 8€877 EUR
Retailer 9€913 EUR
Retailer 13€926 EUR
Retailer 1€929 EUR
Retailer 3€958 EUR
Retailer 12€1,061 EUR
Retailer 4€1,201 EUR
Retailer 5€1,296 EUR
Retailer 11€1,366 EUR
Retailer 2€1,451 EUR
Retailer 7€1,646 EUR

29 data points across 13 retailers

14 retailers€665 EUR to €1,646 EUR

A
Cheapest Retailer
-
€665 EUR
HK$5,800 HKD
A
Retailer 2
-
€829 EUR
$926 USD
View
Final sale: no returns
A
Retailer 3
-
€877 EUR
View
A
Retailer 4
-
€913 EUR
$1,020 USD
View
A
Retailer 5
-
€926 EUR
$1,034 USD
View
A
Retailer 6
-
€929 EUR
£817 GBP
View
Retailer 7
-
€958 EUR
SGD 1,446 SGD
View
Price last confirmed 10 days ago
A
Retailer 8
-
€1,061 EUR
$1,185 USD
View
B+
Retailer 9
-
€1,201 EUR
SGD 1,813 SGD
View
Retailer 10
-
€1,296 EUR
A$2,228 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
€1,366 EUR
ZAR 24,649 ZAR
View
Retailer 12
-
€1,451 EUR
$1,622 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
€1,646 EUR
£1,448 GBP
View
Most Expensive
NZ Jewellers
ec790a67-022d-42e3-b421-5e889851c541 · Sep 25
€2,623 EUR
$2,930 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from €665 EURSave up to €982 EUR

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
€665 EUR