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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2427733321

Certificate GIA 2427733321

Diamond specifications and retailer prices

From $1,690 SGD
₹125,878 INR
As of November 2, 2026
Save $4,465 SGD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,155 SGD at Adiamor · As of November 1, 2026
View at Adiamor

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 2427733321. Listed at 18 retailers as of November 1, 2026, with prices from $1,690 to $6,155, a $4,465 spread on the same certified stone. Adiamor lists it at $6,155. 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
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2427733321
Dimensions6.24 × 6.74 × 3.72 mm
L/W Ratio1.08
Top View
6.24 mm6.74 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2427733321
Side View
Table 59.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 55.3%

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 2
Current: $1,690 SGD|Low: $1,687 SGD|High: $4,238 SGD|Avg: $2,689 SGD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 1$1,690 SGD
Retailer 7$1,719 SGD
Retailer 10$2,164 SGD
Retailer 11$2,205 SGD
Retailer 9$2,455 SGD
Retailer 3$2,500 SGD
Retailer 5$2,620 SGD
Retailer 8$2,937 SGD
Retailer 2$3,118 SGD
Retailer 4$3,263 SGD
Retailer 6$4,187 SGD

34 data points across 11 retailers

18 retailers$1,690 SGD to $6,155 SGD

A
Cheapest Retailer
-
$1,690 SGD
₹125,878 INR
A
Retailer 2
-
$1,719 SGD
HK$10,500 HKD
View
B+
Retailer 3
-
$2,163 SGD
$1,691 USD
View
A
Retailer 4
-
$2,164 SGD
$1,692 USD
View
B+
Retailer 5
-
$2,205 SGD
$1,724 USD
View
Final sale: no returns
B+
Retailer 6
-
$2,390 SGD
$1,869 USD
View
B+
Retailer 7
-
$2,390 SGD
$1,869 USD
View
B+
Retailer 8
-
$2,392 SGD
View
B+
Retailer 9
-
$2,455 SGD
$1,920 USD
View
B+
Retailer 10
-
$2,500 SGD
$1,955 USD
View
B+
Retailer 11
-
$2,620 SGD
£1,613 GBP
View
B+
Retailer 12
-
$2,757 SGD
$2,156 USD
View
B+
Retailer 13
-
$2,937 SGD
ZAR 37,104 ZAR
View
Retailer 14
-
$3,118 SGD
A$3,751 AUD
View
Price last confirmed 27 days ago
B+
Retailer 15
-
$3,263 SGD
€2,430 EUR
View
B
Retailer 16
-
$4,187 SGD
£2,578 GBP
View
B
Retailer 17
-
$5,829 SGD
$4,558 USD
View
Most Expensive
B
Adiamor
D-51261821 · Nov 1
$6,155 SGD
$4,813 USD
View
17 more retailers have this diamond
Prices start from $1,690 SGDSave up to $4,465 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
$1,690 SGD