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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 $2,150 AUD
HK$11,800 HKD
As of November 1, 2026
Save $4,042 AUD (65%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,192 AUD 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 $2,150 to $6,192, a $4,042 spread on the same certified stone. Queensmith lists it at $6,192. 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: $6,192 AUD|Low: $2,150 AUD|High: $6,210 AUD|Avg: $3,487 AUD|+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 17$2,150 AUD
Retailer 2$2,272 AUD
Retailer 15$2,638 AUD
Retailer 10$2,656 AUD
Retailer 9$2,682 AUD
Retailer 11$2,788 AUD
Retailer 4$2,877 AUD
Retailer 8$2,877 AUD
Retailer 3$2,925 AUD
Retailer 5$3,011 AUD
Retailer 13$3,055 AUD
Retailer 14$3,135 AUD
Retailer 6$3,320 AUD
Retailer 18$3,537 AUD
Retailer 12$3,904 AUD
Retailer 16$5,042 AUD
Retailer 7$6,016 AUD
Queensmith$6,192 AUD

22 data points across 18 retailers

23 retailers$2,150 AUD to $6,192 AUD

A
Cheapest Retailer
-
$2,150 AUD
HK$11,800 HKD
A
Retailer 2
-
$2,272 AUD
₹151,984 INR
View
B+
Retailer 3
-
$2,638 AUD
$1,853 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,656 AUD
SGD 2,521 SGD
View
B+
Retailer 5
-
$2,682 AUD
$1,884 USD
View
B+
Retailer 6
-
$2,712 AUD
$1,905 USD
View
B+
Retailer 7
-
$2,788 AUD
£1,542 GBP
View
B+
Retailer 8
-
$2,877 AUD
$2,021 USD
View
B+
Retailer 9
-
$2,877 AUD
$2,021 USD
View
B+
Retailer 10
-
$2,925 AUD
$2,055 USD
View
B+
Retailer 11
-
$2,950 AUD
View
B+
Retailer 12
-
$2,998 AUD
SGD 2,846 SGD
View
B+
Retailer 13
-
$3,004 AUD
$2,110 USD
View
B+
Retailer 14
-
$3,011 AUD
$2,115 USD
View
B+
Retailer 15
-
$3,055 AUD
$2,146 USD
View
B+
Retailer 16
-
$3,135 AUD
£1,734 GBP
View
B+
Retailer 17
-
$3,320 AUD
$2,332 USD
View
B+
Retailer 18
-
$3,537 AUD
ZAR 40,139 ZAR
View
Retailer 19
-
$3,571 AUD
View
Price last confirmed 27 days ago
B+
Retailer 20
-
$3,904 AUD
€2,612 EUR
View
B
Retailer 21
-
$5,042 AUD
£2,789 GBP
View
B
Retailer 22
-
$6,016 AUD
$4,226 USD
View
Most Expensive
B
Queensmith
1555914398 · Oct 28
$6,192 AUD
£3,425 GBP
View
22 more retailers have this diamond
Prices start from $2,150 AUDSave up to $4,042 AUD

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
$2,150 AUD