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Heart|Natural|GIA

1.00ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 2406309500

Certificate GIA 2406309500

Diamond specifications and retailer prices

From $1,230 SGD
As of November 6, 2026
Save $1,804 SGD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,034 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2406309500. Listed at 9 retailers as of November 2, 2026, with prices from $1,230 to $3,034, a $1,804 spread on the same certified stone. MOH London lists it at $3,034. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2406309500
Dimensions5.27 × 5.14 × 3.91 mm
L/W Ratio1.03
Top View
5.27 mm5.14 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2406309500
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 76.1%

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: $3,034 SGD|Low: $1,214 SGD|High: $3,066 SGD|Avg: $1,882 SGD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$1,230 SGD
Retailer 10$1,565 SGD
Retailer 2$1,694 SGD
Retailer 4$1,710 SGD
Retailer 7$1,717 SGD
Retailer 9$1,803 SGD
Retailer 8$1,829 SGD
Retailer 5$1,861 SGD
Retailer 3$2,299 SGD
MOH London$3,034 SGD

31 data points across 10 retailers

9 retailers$1,230 SGD to $3,034 SGD

A
Cheapest Retailer
-
$1,230 SGD
B+
Retailer 2
-
$1,535 SGD
View
B+
Retailer 3
-
$1,694 SGD
View
B+
Retailer 4
-
$1,710 SGD
View
B+
Retailer 5
-
$1,717 SGD
View
B+
Retailer 6
-
$1,829 SGD
View
B+
Retailer 7
-
$1,861 SGD
View
B+
Retailer 8
-
$2,299 SGD
View
Most Expensive
B
MOH London
782D7060E · Nov 2
$3,034 SGD
£1,864 GBP
View
8 more retailers have this diamond
Prices start from $1,230 SGDSave up to $1,804 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
$1,230 SGD