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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 $1,164 USD
As of November 6, 2026
Save $1,414 USD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,578 USD 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 $1,164 to $2,578, a $1,414 spread on the same certified stone. Moon Ocean lists it at $2,578. 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
Color
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: $2,578 USD|Low: $1,152 USD|High: $2,625 USD|Avg: $1,789 USD|-1.8%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$1,164 USD
Retailer 7$1,455 USD
Retailer 8$1,482 USD
Retailer 3$1,515 USD
Retailer 2$1,869 USD
Retailer 4$1,973 USD
Retailer 5$2,461 USD
Moon Ocean$2,578 USD

30 data points across 8 retailers

10 retailers$1,164 USD to $2,578 USD

B+
Cheapest Retailer
-
$1,164 USD
B+
Retailer 2
-
$1,248 USD
View
B
Retailer 3
-
$1,430 USD
View
B
Retailer 4
-
$1,455 USD
View
B
Retailer 5
-
$1,482 USD
View
B
Retailer 6
-
$1,515 USD
View
B
Retailer 7
-
$1,869 USD
View
B
Retailer 8
-
$1,973 USD
View
B
Retailer 9
-
$2,461 USD
View
Most Expensive
B
Moon Ocean
NVN-3A03D79B8-464 · Nov 6
$2,578 USD
£2,030 GBP
View
9 more retailers have this diamond
Prices start from $1,164 USDSave up to $1,414 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.

B+
0.90ct Heart
$1,164 USD