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Heart|Natural|GIA

0.90ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 1555112785

Certificate GIA 1555112785

Diamond specifications and retailer prices

From $978 AUD
As of November 6, 2026
Save $647 AUD (40%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,625 AUD at GemTrove · As of November 6, 2026
View at GemTrove

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555112785. Listed at 5 retailers as of November 6, 2026, with prices from $978 to $1,625, a $647 spread on the same certified stone. GemTrove lists it at $1,625. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555112785
Dimensions5.81 × 6.86 × 3.90 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Cloud, Knot, Crystal
Top View
5.81 mm6.86 mm0.90 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555112785
Side View
Table 55.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 56.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,625 AUD|Low: $846 AUD|High: $1,625 AUD|Avg: $1,185 AUD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 3$978 AUD
Retailer 4$1,087 AUD
Retailer 5$1,106 AUD
Retailer 2$1,138 AUD
GemTrove$1,625 AUD

39 data points across 5 retailers

5 retailers$978 AUD to $1,625 AUD

A
Cheapest Retailer
-
$978 AUD
Final sale: no returns
A
Retailer 2
-
$1,087 AUD
View
Retailer 3
-
$1,106 AUD
View
Price last confirmed 23 days ago
A
Retailer 4
-
$1,138 AUD
View
Most Expensive
B+
GemTrove
GT-N-01266608-98 · Nov 6
$1,625 AUD
View
4 more retailers have this diamond
Prices start from $978 AUDSave up to $647 AUD

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
$978 AUD