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Heart|Natural|GIA

0.90ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2254237464

Certificate GIA 2254237464

Diamond specifications and retailer prices

From $1,694 AUD
As of November 6, 2026
Save $2,058 AUD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,752 AUD at Moon Ocean · As of November 6, 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 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 2254237464. Listed at 10 retailers as of November 6, 2026, with prices from $1,694 to $3,752, a $2,058 spread on the same certified stone. Moon Ocean lists it at $3,752. 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
OriginNatural
Grading LabGIA
CertificateGIA 2254237464
Dimensions5.86 × 4.88 × 3.53 mm
L/W Ratio1.20
Top View
5.86 mm4.88 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2254237464
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 72.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,752 AUD|Low: $1,677 AUD|High: $3,821 AUD|Avg: $2,603 AUD|-1.8%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$1,694 AUD
Retailer 7$2,118 AUD
Retailer 8$2,157 AUD
Retailer 3$2,205 AUD
Retailer 2$2,720 AUD
Retailer 4$2,872 AUD
Retailer 5$3,582 AUD
Moon Ocean$3,752 AUD

30 data points across 8 retailers

10 retailers$1,694 AUD to $3,752 AUD

B+
Cheapest Retailer
-
$1,694 AUD
B+
Retailer 2
-
$1,816 AUD
View
B
Retailer 3
-
$2,081 AUD
View
B
Retailer 4
-
$2,118 AUD
View
B
Retailer 5
-
$2,157 AUD
View
B
Retailer 6
-
$2,205 AUD
View
B
Retailer 7
-
$2,720 AUD
View
B
Retailer 8
-
$2,872 AUD
View
B
Retailer 9
-
$3,582 AUD
View
Most Expensive
B
Moon Ocean
NVN-3A03D79B8-464 · Nov 6
$3,752 AUD
£2,030 GBP
View
9 more retailers have this diamond
Prices start from $1,694 AUDSave up to $2,058 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.

B+
0.90ct Heart
$1,694 AUD