Heart|Natural|GIA

0.91ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 3525247509

Certificate GIA 3525247509

Diamond specifications and retailer prices

From $987 USD
As of October 27, 2026
Save $1,154 USD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,698 USD 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 October 27, 2026, with a 117% 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
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,257 USD|Low: $935 USD|High: $2,157 USD|Avg: $1,408 USD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10$987 USD
Retailer 8$1,020 USD
Retailer 2$1,059 USD
Retailer 11$1,240 USD
Retailer 1$1,257 USD
Retailer 3$1,276 USD
Retailer 5$1,292 USD
Retailer 9$1,446 USD
Retailer 6$1,616 USD
Retailer 7$2,028 USD
Retailer 4$2,141 USD

41 data points across 11 retailers

15 retailers$987 USD to $2,141 USD

A
Cheapest Retailer
-
$987 USD
A
Retailer 2
-
$1,020 USD
View
Final sale: no returns
A
Retailer 3
-
$1,059 USD
View
A
Retailer 4
-
$1,106 USD
View
Price last confirmed 21 days ago
A
Retailer 5
-
$1,106 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$1,148 USD
View
Price last confirmed 28 days ago
A
Retailer 7
-
$1,240 USD
View
B+
Retailer 8
-
$1,257 USD
£989 GBP
View
B+
Retailer 9
-
$1,276 USD
View
Price last confirmed 20 days ago
A
Retailer 10
-
$1,292 USD
£1,017 GBP
View
B+
Retailer 11
-
$1,446 USD
A$2,225 AUD
View
Price last confirmed 25 days ago
B+
Retailer 12
-
$1,616 USD
ZAR 26,105 ZAR
View
B+
Retailer 13
-
$2,028 USD
£1,597 GBP
View
B
Retailer 14
-
$2,141 USD
£1,686 GBP
View
Most Expensive
B
NZ Jewellers
fa4126a9-76d9-432e-a56c-fa71ffe002c4 · Sep 30
$2,698 USD
View
Price last confirmed 28 days ago
14 more retailers have this diamond
Prices start from $987 USDSave up to $1,154 USD

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
$987 USD