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Heart|Natural|GIA

0.91ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6551101722

Certificate GIA 6551101722

Diamond specifications and retailer prices

From $1,473 USD
As of November 1, 2026
Save $2,623 USD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,096 USD at NZ Jewellers · As of October 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551101722. Listed at 15 retailers as of October 30, 2026, with prices from $1,473 to $4,096, a $2,623 spread on the same certified stone. NZ Jewellers lists it at $4,096. 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.61°
Pavilion angle41.52°
OriginNatural
Grading LabGIA
CertificateGIA 6551101722
Dimensions5.68 × 6.62 × 3.94 mm
L/W Ratio1.17
Top View
5.68 mm6.62 mm0.91 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551101722
Side View
Table 59.0%Crown 38.61°Girdle: THK-VTKPavilion 41.52°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,096 USD|Low: $1,421 USD|High: $4,096 USD|Avg: $2,186 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 4$1,473 USD
Retailer 13$1,530 USD
Retailer 12$1,549 USD
Retailer 3$1,679 USD
Retailer 5$1,679 USD
Retailer 14$1,750 USD
Retailer 11$1,757 USD
Retailer 9$1,882 USD
Retailer 6$1,938 USD
Retailer 15$2,036 USD
Retailer 7$2,245 USD
Retailer 10$2,477 USD
Retailer 2$2,943 USD
Retailer 8$3,232 USD
NZ Jewellers$4,096 USD

42 data points across 15 retailers

15 retailers$1,473 USD to $4,096 USD

B+
Cheapest Retailer
-
$1,473 USD
B+
Retailer 2
-
$1,530 USD
View
B+
Retailer 3
-
$1,549 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,679 USD
View
B+
Retailer 5
-
$1,679 USD
View
B+
Retailer 6
-
$1,750 USD
View
B+
Retailer 7
-
$1,757 USD
View
B+
Retailer 8
-
$1,882 USD
£1,482 GBP
View
B+
Retailer 9
-
$1,938 USD
View
B+
Retailer 10
-
$2,036 USD
View
Retailer 11
-
$2,245 USD
A$3,454 AUD
View
Price last confirmed 27 days ago
B
Retailer 12
-
$2,477 USD
ZAR 40,017 ZAR
View
B
Retailer 13
-
$2,943 USD
£2,317 GBP
View
B
Retailer 14
-
$3,232 USD
£2,545 GBP
View
Most Expensive
B
NZ Jewellers
2df41225-1307-453d-9b46-2a8edd1b8f93 · Oct 30
$4,096 USD
View
14 more retailers have this diamond
Prices start from $1,473 USDSave up to $2,623 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.

B+
0.91ct Heart
$1,473 USD