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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6542397714

Certificate GIA 6542397714

Diamond specifications and retailer prices

From €538 EUR
As of November 6, 2026
Save €804 EUR (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,593 EUR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542397714. Listed at 13 retailers as of November 2, 2026, with a 149% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.90
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle38.9°
OriginNatural
Grading LabGIA
CertificateGIA 6542397714
Dimensions5.71 × 6.75 × 4.03 mm
L/W Ratio1.18
Top View
5.71 mm6.75 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542397714
Side View
Table 58.0%CrownGirdle: MED-VTKPavilion 38.9°Culet: NoneDepth 59.7%

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: €754 EUR|Low: €538 EUR|High: €1,515 EUR|Avg: €917 EUR|-13.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11€538 EUR
Retailer 9€677 EUR
Retailer 2€725 EUR
Retailer 1€754 EUR
Retailer 10€757 EUR
Retailer 3€775 EUR
Retailer 5€775 EUR
Retailer 4€940 EUR
Retailer 6€957 EUR
Retailer 7€1,074 EUR
Retailer 8€1,120 EUR
Retailer 12€1,343 EUR

36 data points across 12 retailers

13 retailers€538 EUR to €1,343 EUR

A
Cheapest Retailer
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€538 EUR
A
Retailer 2
-
€677 EUR
View
Final sale: no returns
A
Retailer 3
-
€725 EUR
View
A
Retailer 4
-
€754 EUR
View
A
Retailer 5
-
€757 EUR
View
A
Retailer 6
-
€775 EUR
View
A
Retailer 7
-
€775 EUR
View
B+
Retailer 8
-
€940 EUR
View
B+
Retailer 9
-
€957 EUR
View
B+
Retailer 10
-
€1,074 EUR
View
B+
Retailer 11
-
€1,120 EUR
View
B+
Retailer 12
-
€1,343 EUR
View
Most Expensive
NZ Jewellers
96717b14-6037-4173-b8d9-9846d49afc09 · Sep 25
€2,593 EUR
$2,895 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from €538 EURSave up to €804 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
0.90ct Heart
€538 EUR