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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2544175935

Certificate GIA 2544175935

Diamond specifications and retailer prices

From $968 AUD
As of November 6, 2026
Save $1,419 AUD (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,601 AUD at NZ Jewellers · As of September 25, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544175935. Listed at 12 retailers as of November 4, 2026, with a 147% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle41.5°
OriginNatural
Grading LabGIA
CertificateGIA 2544175935
Dimensions5.53 × 6.66 × 4.25 mm
L/W Ratio1.20
Top View
5.53 mm6.66 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2544175935
Side View
Table 61.0%CrownGirdle: STK-THKPavilion 41.5°Culet: NoneDepth 63.8%

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: $1,342 AUD|Low: $968 AUD|High: $2,719 AUD|Avg: $1,606 AUD|-15.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$968 AUD
Retailer 8$1,205 AUD
Retailer 11$1,281 AUD
Retailer 5$1,332 AUD
Retailer 9$1,338 AUD
Retailer 1$1,342 AUD
Retailer 2$1,368 AUD
Retailer 3$1,624 AUD
Retailer 4$1,912 AUD
Retailer 7$1,984 AUD
Retailer 6$2,387 AUD

35 data points across 11 retailers

12 retailers$968 AUD to $2,387 AUD

A
Cheapest Retailer
-
$968 AUD
A
Retailer 2
-
$1,205 AUD
View
Final sale: no returns
A
Retailer 3
-
$1,281 AUD
View
A
Retailer 4
-
$1,332 AUD
View
A
Retailer 5
-
$1,338 AUD
View
A
Retailer 6
-
$1,342 AUD
View
A
Retailer 7
-
$1,368 AUD
View
B+
Retailer 8
-
$1,624 AUD
View
B+
Retailer 9
-
$1,912 AUD
View
B+
Retailer 10
-
$1,984 AUD
View
B+
Retailer 11
-
$2,387 AUD
View
Most Expensive
NZ Jewellers
df069329-6742-4d43-ab50-0ee8148aa41e · Sep 25
$4,601 AUD
$3,161 USD
View
Price last confirmed 42 days ago
11 more retailers have this diamond
Prices start from $968 AUDSave up to $1,419 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
$968 AUD