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Heart|Natural|GIA

1.01ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1549355495

Certificate GIA 1549355495

Diamond specifications and retailer prices

From $1,508 SGD
As of November 6, 2026
Save $2,045 SGD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,367 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct natural heart sits in the classic one-carat band, graded J 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 1549355495. Listed at 15 retailers as of November 2, 2026, with a 136% 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

1.01
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle40.3°
OriginNatural
Grading LabGIA
CertificateGIA 1549355495
Dimensions6.11 × 6.91 × 4.07 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.11 mm6.91 mm1.01 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1549355495
Side View
Table 57.0%CrownGirdle: MED-VTKPavilion 40.3°Culet: NoneDepth 58.9%

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: Nov 6
Current: $1,599 SGD|Low: $1,508 SGD|High: $3,774 SGD|Avg: $2,272 SGD|-2.0%
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
Retailer 14
November 6, 2026
Retailer 10$1,508 SGD
Retailer 1$1,599 SGD
Retailer 3$1,757 SGD
Retailer 5$1,781 SGD
Retailer 8$1,794 SGD
Retailer 12$1,796 SGD
Retailer 2$1,848 SGD
Retailer 9$2,098 SGD
Retailer 11$2,113 SGD
Retailer 13$2,345 SGD
Retailer 14$2,475 SGD
Retailer 6$2,777 SGD
Retailer 7$3,035 SGD
Retailer 4$3,554 SGD

31 data points across 14 retailers

15 retailers$1,508 SGD to $3,554 SGD

A
Cheapest Retailer
-
$1,508 SGD
A
Retailer 2
-
$1,599 SGD
View
Final sale: no returns
A
Retailer 3
-
$1,757 SGD
View
A
Retailer 4
-
$1,781 SGD
View
A
Retailer 5
-
$1,794 SGD
View
A
Retailer 6
-
$1,796 SGD
View
A
Retailer 7
-
$1,848 SGD
View
B+
Retailer 8
-
$2,098 SGD
View
B+
Retailer 9
-
$2,113 SGD
View
B+
Retailer 10
-
$2,345 SGD
View
B+
Retailer 11
-
$2,475 SGD
View
Retailer 12
-
$2,777 SGD
View
Price last confirmed 32 days ago
B+
Retailer 13
-
$3,035 SGD
View
B
Retailer 14
-
$3,554 SGD
View
Most Expensive
NZ Jewellers
f1a80c97-eb2c-47eb-ba23-58a4514ec750 · Sep 25
$5,367 SGD
$4,188 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from $1,508 SGDSave up to $2,045 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.

A
1.01ct Heart
$1,508 SGD