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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 1555914398

Certificate GIA 1555914398

Diamond specifications and retailer prices

From $1,932 SGD
HK$11,800 HKD
As of November 1, 2026
Save $3,631 SGD (65%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,563 SGD at Queensmith · As of October 28, 2026
View at Queensmith

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 1555914398. Listed at 23 retailers as of October 28, 2026, with prices from $1,932 to $5,563, a $3,631 spread on the same certified stone. Queensmith lists it at $5,563. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555914398
Dimensions6.41 × 7.05 × 3.84 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud, Crystal, Needle
Top View
6.41 mm7.05 mm1.00 ctH / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555914398
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 54.5%

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: $5,563 SGD|Low: $1,932 SGD|High: $5,579 SGD|Avg: $3,137 SGD|+3.0%
Queensmith
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
November 2, 2026
Retailer 18$1,932 SGD
Retailer 11$2,041 SGD
Retailer 16$2,370 SGD
Retailer 10$2,386 SGD
Retailer 9$2,409 SGD
Retailer 12$2,505 SGD
Retailer 5$2,585 SGD
Retailer 8$2,585 SGD
Retailer 4$2,628 SGD
Retailer 6$2,705 SGD
Retailer 14$2,744 SGD
Retailer 15$2,817 SGD
Retailer 2$2,963 SGD
Retailer 3$3,178 SGD
Retailer 13$3,508 SGD
Retailer 17$4,530 SGD
Retailer 7$5,405 SGD
Queensmith$5,563 SGD

22 data points across 18 retailers

23 retailers$1,932 SGD to $5,563 SGD

A
Cheapest Retailer
-
$1,932 SGD
HK$11,800 HKD
A
Retailer 2
-
$2,041 SGD
₹151,984 INR
View
B+
Retailer 3
-
$2,370 SGD
$1,853 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,386 SGD
View
B+
Retailer 5
-
$2,409 SGD
$1,884 USD
View
B+
Retailer 6
-
$2,436 SGD
$1,905 USD
View
B+
Retailer 7
-
$2,505 SGD
£1,542 GBP
View
B+
Retailer 8
-
$2,585 SGD
$2,021 USD
View
B+
Retailer 9
-
$2,585 SGD
$2,021 USD
View
B+
Retailer 10
-
$2,628 SGD
$2,055 USD
View
B+
Retailer 11
-
$2,650 SGD
A$3,188 AUD
View
B+
Retailer 12
-
$2,693 SGD
View
B+
Retailer 13
-
$2,698 SGD
$2,110 USD
View
B+
Retailer 14
-
$2,705 SGD
$2,115 USD
View
B+
Retailer 15
-
$2,744 SGD
$2,146 USD
View
B+
Retailer 16
-
$2,817 SGD
£1,734 GBP
View
B+
Retailer 17
-
$2,963 SGD
$2,317 USD
View
B+
Retailer 18
-
$3,178 SGD
ZAR 40,139 ZAR
View
Retailer 19
-
$3,208 SGD
A$3,860 AUD
View
Price last confirmed 27 days ago
B+
Retailer 20
-
$3,508 SGD
€2,612 EUR
View
B
Retailer 21
-
$4,530 SGD
£2,789 GBP
View
B
Retailer 22
-
$5,405 SGD
$4,226 USD
View
Most Expensive
B
Queensmith
1555914398 · Oct 28
$5,563 SGD
£3,425 GBP
View
22 more retailers have this diamond
Prices start from $1,932 SGDSave up to $3,631 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
$1,932 SGD