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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2254237464

Certificate GIA 2254237464

Diamond specifications and retailer prices

From €1,043 EUR
As of November 6, 2026
Save €1,267 EUR (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,309 EUR at Moon Ocean · As of November 6, 2026
View at Moon Ocean

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 2254237464. Listed at 10 retailers as of November 6, 2026, with prices from €1,043 to €2,309, a €1,267 spread on the same certified stone. Moon Ocean lists it at €2,309. 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
OriginNatural
Grading LabGIA
CertificateGIA 2254237464
Dimensions5.86 × 4.88 × 3.53 mm
L/W Ratio1.20
Top View
5.86 mm4.88 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2254237464
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 72.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €2,309 EUR|Low: €1,032 EUR|High: €2,352 EUR|Avg: €1,602 EUR|-1.8%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6€1,043 EUR
Retailer 7€1,303 EUR
Retailer 8€1,327 EUR
Retailer 3€1,357 EUR
Retailer 2€1,674 EUR
Retailer 4€1,767 EUR
Retailer 5€2,204 EUR
Moon Ocean€2,309 EUR

30 data points across 8 retailers

10 retailers€1,043 EUR to €2,309 EUR

B+
Cheapest Retailer
-
€1,043 EUR
B+
Retailer 2
-
€1,118 EUR
View
B
Retailer 3
-
€1,281 EUR
View
B
Retailer 4
-
€1,303 EUR
View
B
Retailer 5
-
€1,327 EUR
View
B
Retailer 6
-
€1,357 EUR
View
B
Retailer 7
-
€1,674 EUR
View
B
Retailer 8
-
€1,767 EUR
View
B
Retailer 9
-
€2,204 EUR
View
Most Expensive
B
Moon Ocean
NVN-3A03D79B8-464 · Nov 6
€2,309 EUR
£2,030 GBP
View
9 more retailers have this diamond
Prices start from €1,043 EURSave up to €1,267 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.

B+
0.90ct Heart
€1,043 EUR