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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 €860 EUR
As of November 6, 2026
Save €1,260 EUR (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €2,120 EUR 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 €860 to €2,120, a €1,260 spread on the same certified stone. MOH London lists it at €2,120. 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: €2,120 EUR|Low: €848 EUR|High: €2,143 EUR|Avg: €1,315 EUR|-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€860 EUR
Retailer 10€1,094 EUR
Retailer 2€1,184 EUR
Retailer 4€1,195 EUR
Retailer 7€1,200 EUR
Retailer 9€1,260 EUR
Retailer 8€1,278 EUR
Retailer 5€1,300 EUR
Retailer 3€1,607 EUR
MOH London€2,120 EUR

31 data points across 10 retailers

9 retailers€860 EUR to €2,120 EUR

A
Cheapest Retailer
-
€860 EUR
B+
Retailer 2
-
€1,073 EUR
View
B+
Retailer 3
-
€1,184 EUR
View
B+
Retailer 4
-
€1,195 EUR
View
B+
Retailer 5
-
€1,200 EUR
View
B+
Retailer 6
-
€1,278 EUR
View
B+
Retailer 7
-
€1,300 EUR
View
B+
Retailer 8
-
€1,607 EUR
View
Most Expensive
B
MOH London
782D7060E · Nov 2
€2,120 EUR
£1,864 GBP
View
8 more retailers have this diamond
Prices start from €860 EURSave up to €1,260 EUR

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
€860 EUR