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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 1489291904

Certificate GIA 1489291904

Diamond specifications and retailer prices

From $2,144 SGD
HK$13,100 HKD
As of November 1, 2026
Save $3,882 SGD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,026 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic 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 1489291904. Listed at 19 retailers as of October 30, 2026, with prices from $2,144 to $6,026, a $3,882 spread on the same certified stone. NZ Jewellers lists it at $6,026. 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

1.00
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle1°
Pavilion angle1°
OriginNatural
Grading LabGIA
CertificateGIA 1489291904
Dimensions5.79 × 6.76 × 4.17 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
5.79 mm6.76 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1489291904
Side View
Table 58.0%Crown 1°Girdle: ETK-ETKPavilion 1°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,026 SGD|Low: $2,122 SGD|High: $6,171 SGD|Avg: $3,382 SGD|-2.3%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 12$2,144 SGD
Retailer 5$2,527 SGD
Retailer 4$2,604 SGD
Retailer 7$2,660 SGD
Retailer 16$2,728 SGD
Retailer 3$2,883 SGD
Retailer 9$2,883 SGD
Retailer 19$2,890 SGD
Retailer 8$2,977 SGD
Retailer 15$3,016 SGD
Retailer 18$3,060 SGD
Retailer 2$3,163 SGD
Retailer 17$3,325 SGD
Retailer 6$3,362 SGD
Retailer 13$3,543 SGD
Retailer 11$3,634 SGD
Retailer 10$4,142 SGD
Retailer 14$5,077 SGD
NZ Jewellers$6,026 SGD

45 data points across 19 retailers

19 retailers$2,144 SGD to $6,026 SGD

A
Cheapest Retailer
-
$2,144 SGD
HK$13,100 HKD
B+
Retailer 2
-
$2,527 SGD
$1,976 USD
View
B+
Retailer 3
-
$2,604 SGD
$2,036 USD
View
B+
Retailer 4
-
$2,660 SGD
$2,080 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,728 SGD
$2,133 USD
View
B+
Retailer 6
-
$2,883 SGD
$2,254 USD
View
B+
Retailer 7
-
$2,883 SGD
$2,254 USD
View
B+
Retailer 8
-
$2,890 SGD
$2,260 USD
View
B
Retailer 9
-
$2,977 SGD
View
B
Retailer 10
-
$3,016 SGD
$2,358 USD
View
B
Retailer 11
-
$3,060 SGD
$2,393 USD
View
B+
Retailer 12
-
$3,163 SGD
£1,947 GBP
View
B+
Retailer 13
-
$3,325 SGD
$2,600 USD
View
B
Retailer 14
-
$3,362 SGD
$2,629 USD
View
B
Retailer 15
-
$3,543 SGD
ZAR 44,752 ZAR
View
Retailer 16
-
$3,634 SGD
A$4,372 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
$4,142 SGD
$3,238 USD
View
B
Retailer 18
-
$5,077 SGD
£3,126 GBP
View
Most Expensive
B
NZ Jewellers
468513ec-9b8d-4a44-bbbc-c7da6172cc2c · Oct 30
$6,026 SGD
$4,712 USD
View
18 more retailers have this diamond
Prices start from $2,144 SGDSave up to $3,882 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
1.00ct Heart
$2,144 SGD