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Heart|Natural|GIA

0.91ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 5556326450

Certificate GIA 5556326450

Diamond specifications and retailer prices

From €743 EUR
$830 USD
As of November 1, 2026
Save €1,639 EUR (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,382 EUR at Moon Ocean · As of November 2, 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 5556326450. Listed at 15 retailers as of November 1, 2026, with prices from €743 to €2,382, a €1,639 spread on the same certified stone. Moon Ocean lists it at €2,382. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5556326450
Dimensions6.65 × 5.58 × 4.03 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Etch Channel, Crystal, Needle, Indented Natural
Top View
6.65 mm5.58 mm0.91 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5556326450
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 60.6%

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: €2,382 EUR|Low: €612 EUR|High: €2,396 EUR|Avg: €1,164 EUR|+0.8%
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
November 2, 2026
Retailer 7€743 EUR
Retailer 8€761 EUR
Retailer 5€763 EUR
Retailer 6€792 EUR
Retailer 14€834 EUR
Retailer 16€834 EUR
Retailer 15€866 EUR
Retailer 9€942 EUR
Retailer 17€946 EUR
Retailer 12€962 EUR
Retailer 3€1,020 EUR
Retailer 18€1,020 EUR
Retailer 4€1,047 EUR
Retailer 10€1,218 EUR
Retailer 11€1,291 EUR
Retailer 2€1,686 EUR
Retailer 13€2,245 EUR
Moon Ocean€2,382 EUR

27 data points across 18 retailers

15 retailers€743 EUR to €2,382 EUR

A
Cheapest Retailer
-
€743 EUR
$830 USD
A
Retailer 2
-
€761 EUR
$850 USD
View
A
Retailer 3
-
€792 EUR
$885 USD
View
A
Retailer 4
-
€834 EUR
$932 USD
View
A
Retailer 5
-
€834 EUR
$932 USD
View
A
Retailer 6
-
€866 EUR
$968 USD
View
A
Retailer 7
-
€946 EUR
$1,057 USD
View
A
Retailer 8
-
€962 EUR
$1,075 USD
View
A
Retailer 9
-
€1,020 EUR
$1,140 USD
View
A
Retailer 10
-
€1,020 EUR
$1,140 USD
View
A
Retailer 11
-
€1,047 EUR
$1,170 USD
View
B+
Retailer 12
-
€1,291 EUR
View
B+
Retailer 13
-
€1,686 EUR
£1,483 GBP
View
B
Retailer 14
-
€2,245 EUR
$2,508 USD
View
Most Expensive
B
Moon Ocean
NVN-FF42C4091-450 · Nov 2
€2,382 EUR
£2,096 GBP
View
14 more retailers have this diamond
Prices start from €743 EURSave up to €1,639 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
0.91ct Heart
€743 EUR