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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 $1,884 SGD
$1,473 USD
As of November 1, 2026
Save $3,355 SGD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,238 SGD at NZ Jewellers · As of November 3, 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 November 1, 2026, with prices from $1,884 to $5,238, a $3,355 spread on the same certified stone. NZ Jewellers lists it at $5,238. 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
Colour
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: $5,238 SGD|Low: $1,817 SGD|High: $5,238 SGD|Avg: $2,789 SGD
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 3, 2026
Retailer 4$1,884 SGD
Retailer 13$1,957 SGD
Retailer 12$1,981 SGD
Retailer 3$2,147 SGD
Retailer 5$2,147 SGD
Retailer 14$2,238 SGD
Retailer 11$2,247 SGD
Retailer 2$2,387 SGD
Retailer 6$2,479 SGD
Retailer 15$2,604 SGD
Retailer 7$2,871 SGD
Retailer 10$3,168 SGD
Retailer 8$3,763 SGD
Retailer 9$4,133 SGD
NZ Jewellers$5,238 SGD

43 data points across 15 retailers

15 retailers$1,884 SGD to $5,238 SGD

B+
Cheapest Retailer
-
$1,884 SGD
$1,473 USD
B+
Retailer 2
-
$1,957 SGD
$1,530 USD
View
B+
Retailer 3
-
$1,981 SGD
$1,549 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,147 SGD
$1,679 USD
View
B+
Retailer 5
-
$2,147 SGD
$1,679 USD
View
B+
Retailer 6
-
$2,238 SGD
$1,750 USD
View
B+
Retailer 7
-
$2,247 SGD
$1,757 USD
View
B+
Retailer 8
-
$2,387 SGD
£1,470 GBP
View
B+
Retailer 9
-
$2,479 SGD
$1,938 USD
View
B+
Retailer 10
-
$2,604 SGD
$2,036 USD
View
Retailer 11
-
$2,871 SGD
A$3,454 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
$3,168 SGD
ZAR 40,017 ZAR
View
B
Retailer 13
-
$3,763 SGD
£2,317 GBP
View
B
Retailer 14
-
$4,133 SGD
£2,545 GBP
View
Most Expensive
B
NZ Jewellers
2df41225-1307-453d-9b46-2a8edd1b8f93 · Nov 3
$5,238 SGD
$4,096 USD
View
14 more retailers have this diamond
Prices start from $1,884 SGDSave up to $3,355 SGD

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
$1,884 SGD