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Heart|Natural|GIA

0.91ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 2556551345

Certificate GIA 2556551345

Diamond specifications and retailer prices

From $956 USD
As of November 1, 2026
Save $2,087 USD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,043 USD at Moon Ocean · As of November 1, 2026
View at Moon Ocean

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded I 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 2556551345. Listed at 15 retailers as of November 1, 2026, with prices from $956 to $3,043, a $2,087 spread on the same certified stone. Moon Ocean lists it at $3,043. 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

0.91
Carat
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556551345
Dimensions6.63 × 5.61 × 3.97 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
6.63 mm5.61 mm0.91 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556551345
Side View
Table 61.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 60.0%

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: $3,043 USD|Low: $862 USD|High: $3,060 USD|Avg: $1,494 USD|-0.4%
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
November 1, 2026
Retailer 10$956 USD
Retailer 7$980 USD
Retailer 6$981 USD
Retailer 14$1,065 USD
Retailer 16$1,065 USD
Retailer 15$1,106 USD
Retailer 8$1,185 USD
Retailer 17$1,202 USD
Retailer 12$1,229 USD
Retailer 3$1,290 USD
Retailer 4$1,290 USD
Retailer 5$1,330 USD
Retailer 9$1,567 USD
Retailer 11$1,645 USD
Retailer 2$2,154 USD
Retailer 13$2,868 USD
Moon Ocean$3,043 USD

29 data points across 17 retailers

15 retailers$956 USD to $3,043 USD

A
Cheapest Retailer
-
$956 USD
A
Retailer 2
-
$980 USD
View
A
Retailer 3
-
$981 USD
View
A
Retailer 4
-
$1,065 USD
View
A
Retailer 5
-
$1,065 USD
View
A
Retailer 6
-
$1,106 USD
View
A
Retailer 7
-
$1,202 USD
View
B+
Retailer 8
-
$1,229 USD
View
B+
Retailer 9
-
$1,290 USD
View
B+
Retailer 10
-
$1,290 USD
View
B+
Retailer 11
-
$1,330 USD
View
B+
Retailer 12
-
$1,645 USD
€1,567 EUR
View
B
Retailer 13
-
$2,154 USD
£1,696 GBP
View
B
Retailer 14
-
$2,868 USD
View
Most Expensive
B
Moon Ocean
NVN-D9DE9C83B-345 · Nov 1
$3,043 USD
£2,396 GBP
View
14 more retailers have this diamond
Prices start from $956 USDSave up to $2,087 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
0.91ct Heart
$956 USD