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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 $1,358 CAD
$972 USD
As of October 31, 2026
Save $2,147 CAD (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,386 CAD 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 October 30, 2026, with a 158% 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: Oct 31
Current: $4,386 CAD|Low: $1,488 CAD|High: $4,386 CAD|Avg: $2,271 CAD
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
Retailer 14
October 31, 2026
Retailer 3$1,488 CAD
Retailer 5$1,523 CAD
Retailer 10$1,629 CAD
Retailer 14$1,629 CAD
Retailer 12$1,692 CAD
Retailer 11$1,880 CAD
Retailer 4$1,970 CAD
Retailer 6$1,970 CAD
Retailer 13$2,168 CAD
Retailer 2$2,535 CAD
Retailer 7$2,659 CAD
Retailer 9$3,344 CAD
Retailer 8$3,504 CAD
NZ Jewellers$4,386 CAD

38 data points across 14 retailers

15 retailers$1,358 CAD to $3,504 CAD

A
Cheapest Retailer
-
$1,358 CAD
$972 USD
A
Retailer 2
-
$1,488 CAD
$1,065 USD
View
A
Retailer 3
-
$1,523 CAD
$1,090 USD
View
Retailer 4
-
$1,629 CAD
$1,166 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$1,692 CAD
$1,211 USD
View
Price last confirmed 10 days ago
Retailer 6
-
$1,880 CAD
$1,346 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$1,970 CAD
$1,410 USD
View
B+
Retailer 8
-
$1,970 CAD
$1,410 USD
View
B+
Retailer 9
-
$2,039 CAD
$1,460 USD
View
Retailer 10
-
$2,168 CAD
£1,222 GBP
View
Price last confirmed 36 days ago
B+
Retailer 11
-
$2,535 CAD
€1,728 EUR
View
B+
Retailer 12
-
$2,659 CAD
ZAR 30,756 ZAR
View
B
Retailer 13
-
$3,344 CAD
£1,885 GBP
View
B
Retailer 14
-
$3,504 CAD
£1,975 GBP
View
Most Expensive
NZ Jewellers
f573e1a2-dde6-4659-83aa-2f1f2cf0e659 · Oct 21
$4,386 CAD
$3,140 USD
View
Price last confirmed 11 days ago
14 more retailers have this diamond
Prices start from $1,358 CADSave up to $2,147 CAD

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
$1,358 CAD