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Heart|Natural|GIA

0.90ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 1553181188

Certificate GIA 1553181188

Diamond specifications and retailer prices

From €867 EUR
$972 USD
As of November 1, 2026
Save €1,363 EUR (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,800 EUR at NZ Jewellers · As of October 21, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553181188. Listed at 15 retailers as of November 1, 2026, with a 157% 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
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553181188
Dimensions6.66 × 5.72 × 4.01 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
6.66 mm5.72 mm0.90 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553181188
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.3%

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 1
Current: €2,800 EUR|Low: €950 EUR|High: €2,800 EUR|Avg: €1,474 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 3€950 EUR
Retailer 5€972 EUR
Retailer 9€1,040 EUR
Retailer 13€1,040 EUR
Retailer 11€1,080 EUR
Retailer 10€1,200 EUR
Retailer 4€1,257 EUR
Retailer 12€1,384 EUR
Retailer 6€1,618 EUR
Retailer 7€1,697 EUR
Retailer 8€2,134 EUR
Retailer 2€2,230 EUR
NZ Jewellers€2,800 EUR

39 data points across 13 retailers

15 retailers€867 EUR to €2,230 EUR

A
Cheapest Retailer
-
€867 EUR
$972 USD
A
Retailer 2
-
€950 EUR
$1,065 USD
View
A
Retailer 3
-
€972 EUR
$1,090 USD
View
Retailer 4
-
€1,040 EUR
$1,166 USD
View
Price last confirmed 11 days ago
Retailer 5
-
€1,080 EUR
$1,211 USD
View
Price last confirmed 10 days ago
Retailer 6
-
€1,200 EUR
$1,346 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
€1,257 EUR
$1,410 USD
View
B+
Retailer 8
-
€1,257 EUR
$1,410 USD
View
B+
Retailer 9
-
€1,302 EUR
$1,460 USD
View
Retailer 10
-
€1,384 EUR
£1,222 GBP
View
Price last confirmed 36 days ago
B+
Retailer 11
-
€1,618 EUR
View
B+
Retailer 12
-
€1,697 EUR
ZAR 30,756 ZAR
View
B
Retailer 13
-
€2,134 EUR
£1,885 GBP
View
B
Retailer 14
-
€2,230 EUR
£1,969 GBP
View
Most Expensive
NZ Jewellers
f573e1a2-dde6-4659-83aa-2f1f2cf0e659 · Oct 21
€2,800 EUR
$3,140 USD
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from €867 EURSave up to €1,363 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
€867 EUR