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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 $1,732 NZD
As of November 6, 2026
Save $2,539 NZD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,270 NZD 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 $1,732 to $4,270, a $2,539 spread on the same certified stone. MOH London lists it at $4,270. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,270 NZD|Low: $1,708 NZD|High: $4,316 NZD|Avg: $2,649 NZD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 6$1,732 NZD
Retailer 10$2,203 NZD
Retailer 3$2,385 NZD
Retailer 5$2,406 NZD
Retailer 7$2,417 NZD
Retailer 9$2,538 NZD
Retailer 8$2,574 NZD
Retailer 2$2,628 NZD
Retailer 4$3,236 NZD
MOH London$4,270 NZD

32 data points across 10 retailers

9 retailers$1,732 NZD to $4,270 NZD

A
Cheapest Retailer
-
$1,732 NZD
B+
Retailer 2
-
$2,161 NZD
View
B+
Retailer 3
-
$2,385 NZD
View
B+
Retailer 4
-
$2,406 NZD
View
B+
Retailer 5
-
$2,417 NZD
View
B+
Retailer 6
-
$2,574 NZD
View
B+
Retailer 7
-
$2,628 NZD
View
B+
Retailer 8
-
$3,236 NZD
View
Most Expensive
B
MOH London
782D7060E · Nov 2
$4,270 NZD
£1,864 GBP
View
8 more retailers have this diamond
Prices start from $1,732 NZDSave up to $2,539 NZD

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
$1,732 NZD