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Heart|Natural|GIA

0.90ct H SI2 Heart Natural Diamond

ID • H/SI2 • GIA 5553589758

Certificate GIA 5553589758

Diamond specifications and retailer prices

From $1,041 USD
As of October 28, 2026
Save $2,268 USD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,309 USD at Moon Ocean · As of October 29, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553589758. Listed at 15 retailers as of October 28, 2026, with prices from $1,041 to $3,309, a $2,268 spread on the same certified stone. Moon Ocean lists it at $3,309. 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
H
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553589758
Dimensions6.62 × 5.77 × 3.89 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
6.62 mm5.77 mm0.90 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553589758
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.8%

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 28
Current: $3,309 USD|Low: $871 USD|High: $3,309 USD|Avg: $1,575 USD|+0.3%
Moon Ocean
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 6$1,041 USD
Retailer 7$1,045 USD
Retailer 4$1,053 USD
Retailer 9$1,070 USD
Retailer 2$1,152 USD
Retailer 12$1,152 USD
Retailer 11$1,196 USD
Retailer 13$1,296 USD
Retailer 8$1,316 USD
Retailer 16$1,380 USD
Retailer 17$1,380 USD
Retailer 18$1,430 USD
Retailer 3$1,558 USD
Retailer 10$1,694 USD
Retailer 15$1,773 USD
Retailer 14$2,341 USD
Retailer 5$3,071 USD
Moon Ocean$3,309 USD

30 data points across 18 retailers

15 retailers$1,041 USD to $3,309 USD

A
Cheapest Retailer
-
$1,041 USD
Retailer 2
-
$1,045 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$1,070 USD
View
A
Retailer 4
-
$1,152 USD
View
A
Retailer 5
-
$1,196 USD
View
B+
Retailer 6
-
$1,296 USD
View
Retailer 7
-
$1,316 USD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
$1,380 USD
View
B+
Retailer 9
-
$1,380 USD
View
B+
Retailer 10
-
$1,430 USD
View
Retailer 11
-
$1,558 USD
£1,227 GBP
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$1,773 USD
€1,689 EUR
View
B
Retailer 13
-
$2,341 USD
£1,843 GBP
View
Retailer 14
-
$3,071 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Moon Ocean
NVN-99C44B920-758 · Oct 29
$3,309 USD
£2,605 GBP
View
14 more retailers have this diamond
Prices start from $1,041 USDSave up to $2,268 USD

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
$1,041 USD